{"id":4861,"date":"2026-02-20T12:06:49","date_gmt":"2026-02-20T10:06:49","guid":{"rendered":"https:\/\/scispx.com\/?page_id=4861"},"modified":"2026-10-19T14:20:34","modified_gmt":"2026-10-19T12:20:34","slug":"kjeldahl-vs-dumas","status":"publish","type":"page","link":"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/","title":{"rendered":"Kjeldahl versus Dumas: verschillen, methoden en toepassingen"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"4861\" class=\"elementor elementor-4861\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1bfaca91 e-flex e-con-boxed e-con e-parent\" data-id=\"1bfaca91\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-32ece343 e-con-full e-flex e-con e-child\" data-id=\"32ece343\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-2d861f3b e-con-full e-flex e-con e-child\" data-id=\"2d861f3b\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1b61e9f1 elementor-widget elementor-widget-heading\" data-id=\"1b61e9f1\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Kjeldahl vs. Dumas<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-62a8f12e elementor-widget elementor-widget-text-editor\" data-id=\"62a8f12e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Welke stikstofbepalingsmethode past bij uw laboratorium?<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-12d53b40 e-con-full e-flex e-con e-child\" data-id=\"12d53b40\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-58b463c9 elementor-widget elementor-widget-button\" data-id=\"58b463c9\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/scispx.com\/nl\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contacteer onze Xperts<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1744b454 e-con-full e-flex e-con e-child\" data-id=\"1744b454\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1d3aac93 elementor-widget elementor-widget-image\" data-id=\"1d3aac93\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/scispx.com\/wp-content\/uploads\/2026\/01\/Infographic-Kjeldahl-vs-Dumas-Sample-throughput-EN-1024x640.webp\" class=\"attachment-large size-large wp-image-4865\" alt=\"\" srcset=\"https:\/\/scispx.com\/wp-content\/uploads\/2026\/01\/Infographic-Kjeldahl-vs-Dumas-Sample-throughput-EN-1024x640.webp 1024w, https:\/\/scispx.com\/wp-content\/uploads\/2026\/01\/Infographic-Kjeldahl-vs-Dumas-Sample-throughput-EN-300x188.webp 300w, https:\/\/scispx.com\/wp-content\/uploads\/2026\/01\/Infographic-Kjeldahl-vs-Dumas-Sample-throughput-EN-768x480.webp 768w, https:\/\/scispx.com\/wp-content\/uploads\/2026\/01\/Infographic-Kjeldahl-vs-Dumas-Sample-throughput-EN-1536x960.webp 1536w, https:\/\/scispx.com\/wp-content\/uploads\/2026\/01\/Infographic-Kjeldahl-vs-Dumas-Sample-throughput-EN-18x12.webp 18w, https:\/\/scispx.com\/wp-content\/uploads\/2026\/01\/Infographic-Kjeldahl-vs-Dumas-Sample-throughput-EN.webp 1600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7e201aa9 e-flex e-con-boxed e-con e-parent\" data-id=\"7e201aa9\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-771422b7 e-con-full e-flex e-con e-child\" data-id=\"771422b7\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-4d2208cd e-con-full e-flex e-con e-child\" data-id=\"4d2208cd\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-325c8a elementor-widget elementor-widget-heading\" data-id=\"325c8a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Welke stikstofbepalingsmethode past bij uw laboratorium? <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13d21e8e elementor-widget elementor-widget-button\" data-id=\"13d21e8e\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/scispx.com\/nl\/food-campaign\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Meer toepassingen in de voedingsindustrie<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-40c0d3f1 e-con-full e-flex e-con e-child\" data-id=\"40c0d3f1\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-60f93036 elementor-widget elementor-widget-text-editor\" data-id=\"60f93036\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">Stikstofbepaling is essentieel in voedingsmiddelen- en veevoederanalyse, landbouw, milieulaboratoria en de chemische industrie. Maar welke methode kiest u: Kjeldahl of Dumas?\n\nBeide methoden leveren betrouwbare stikstofmetingen, maar verschillen in snelheid, veiligheid, meetprincipe en de stikstofverbindingen die worden bepaald.<\/p><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c10c218 e-flex e-con-boxed e-con e-parent\" data-id=\"c10c218\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-5a6a4f8 e-con-full e-flex e-con e-child\" data-id=\"5a6a4f8\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7e0126c elementor-widget elementor-widget-button\" data-id=\"7e0126c\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#kjeldahl2\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Kjeldahl<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e4fb8c elementor-widget elementor-widget-button\" data-id=\"5e4fb8c\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#dumas2\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Dumas<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c19fb57 elementor-widget elementor-widget-button\" data-id=\"c19fb57\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#comparisonkjeldahldumas\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Kjeldahl vs. Dumas<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-107b3c0 elementor-widget elementor-widget-button\" data-id=\"107b3c0\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#accuracykjeldahldumas\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Nauwkeurigheid<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0628755 elementor-widget elementor-widget-button\" data-id=\"0628755\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#howtochoosekjeldahldumas\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">De juiste keuze<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-783efa8 elementor-widget elementor-widget-button\" data-id=\"783efa8\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#readmorekjeldahldumas\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Lees meer<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1008d1b8 e-con-full e-flex e-con e-parent\" data-id=\"1008d1b8\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-1e382069 e-flex e-con-boxed e-con e-child\" data-id=\"1e382069\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-f67d6b1 e-con-full e-flex e-con e-child\" data-id=\"f67d6b1\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-7f2f5d1c e-con-full e-flex e-con e-child\" data-id=\"7f2f5d1c\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-40a873b3 e-con-full e-flex e-con e-child\" data-id=\"40a873b3\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-36d800aa elementor-widget elementor-widget-heading\" data-id=\"36d800aa\" data-element_type=\"widget\" id=\"kjeldahl2\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Wat is de Kjeldahl-methode? <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9ccb97d elementor-widget elementor-widget-text-editor\" data-id=\"9ccb97d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">De Kjeldahl-methode werd ge\u00efntroduceerd in 1883 en is nog steeds een veelgebruikte referentietechniek voor stikstof- en eiwitbepaling. De methode bepaalt organisch stikstof en ammoniumstikstof in monsters zoals voedingsmiddelen, veevoeder en landbouwproducten.<\/p><p>De methode wordt erkend in talrijke gestandaardiseerde analysemethoden, waaronder AOAC- en ISO-methoden.<\/p><h3><strong>Hoe werkt de Kjeldahl-methode?<\/strong><\/h3><p><strong>De Kjeldahl-methode bestaat uit drie hoofdstappen:<\/strong><\/p><ol start=\"1\" data-spread=\"false\"><li><p><strong>Destructie:<\/strong>\u00a0Het monster wordt verhit met geconcentreerd zwavelzuur, meestal bij ongeveer 400 \u00b0C. Hierdoor wordt organisch stikstof omgezet in ammoniumsulfaat.<\/p><\/li><li><p><strong>Distillatie:<\/strong>\u00a0Natriumhydroxide wordt toegevoegd om ammoniak vrij te maken. De ammoniak wordt vervolgens door destillatie gescheiden en opgevangen in een opvangoplossing.<\/p><\/li><li><p><strong>Titratie:<\/strong> De opgevangen ammoniak wordt gekwantificeerd via titratie om het stikstofgehalte te berekenen.<\/p><\/li><\/ol><p>Het gemeten stikstofgehalte kan vervolgens met een geschikte omrekeningsfactor worden omgerekend naar het ruw eiwitgehalte.<\/p><h3 data-pm-slice=\"1 1 []\"><strong>Wat zijn de voordelen van de Kjeldahl-methode?<\/strong><\/h3><p>De grootste kracht van de Kjeldahl-methode is haar lange geschiedenis als gevalideerde referentiemethode, vooral voor eiwitbepaling in voedingsmiddelen en veevoeder.<\/p><p><strong>De voordelen zijn onder meer:<\/strong><\/p><ul data-spread=\"false\"><li><p><strong>Gevestigde referentiemethode:<\/strong>\u00a0breed erkend in gestandaardiseerde analysemethoden.<\/p><\/li><li><p><strong>Betrouwbare resultaten:<\/strong>\u00a0g<span style=\"background-color: transparent;\">eschikt voor routinematige eiwitbepaling in veel voedingsmiddelen- en veevoedermatrices.<\/span><\/p><\/li><li><p><strong>Bestaande laboratoriuminfrastructuur:<\/strong>\u00a0laboratoria met Kjeldahl-apparatuur kunnen blijven werken met gevalideerde workflows.<\/p><\/li><li><p><strong>Vastgestelde omrekeningsfactoren:<\/strong>\u00a0veel eiwitbepalingen maken gebruik van factoren die historisch gekoppeld zijn aan de Kjeldahl-methode.<\/p><\/li><\/ul><h3><strong>Wat zijn de beperkingen van de Kjeldahl-methode?<\/strong><\/h3><p>Ondanks haar brede toepassing kent de Kjeldahl-methode verschillende beperkingen:<\/p><ul data-spread=\"false\"><li><p><strong>Langere analysetijd:<\/strong> destructie, destillatie en titratie kunnen meerdere uren in beslag nemen.<\/p><\/li><li><p><strong>Gevaarlijke chemicali\u00ebn:<\/strong>\u00a0de methode vereist geconcentreerd zwavelzuur, natriumhydroxide en vaak katalysatoren.<\/p><\/li><li><p><strong>Chemisch afval:<\/strong> reagentia en destructieresten moeten correct worden verwerkt en afgevoerd.<\/p><\/li><li><p><strong>Beperkte stikstofdekking:<\/strong> conventionele Kjeldahl-bepalingen meten nitraat- en nitrietstikstof niet volledig zonder aanvullende behandeling.<\/p><\/li><li><p><strong>Meerdere handmatige stappen:<\/strong> hoewel automatisering mogelijk is, omvat het proces verschillende voorbereidende en analytische stappen.<\/p><\/li><\/ul><p>Deze beperkingen kunnen de methode minder geschikt maken voor laboratoria met hoge monsteraantallen.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-24c11f18 e-con-full e-flex e-con e-child\" data-id=\"24c11f18\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-2715e1e3 e-con-full e-flex e-con e-child\" data-id=\"2715e1e3\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-772c98e e-con-full e-flex e-con e-child\" data-id=\"772c98e\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bfc0e20 elementor-widget elementor-widget-heading\" data-id=\"bfc0e20\" data-element_type=\"widget\" id=\"dumas2\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Wat is de Dumas-methode? <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-71569cdb elementor-widget elementor-widget-text-editor\" data-id=\"71569cdb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>De Dumas-methode, ook wel bekend als de <strong>Dumas-methode<\/strong>, bepaalt stikstof via verbranding bij hoge temperatuur. In tegenstelling tot de Kjeldahl-methode is geen natchemische destructie nodig. Het monster wordt verbrand in een zuurstofrijke omgeving.<\/p><p>Dumas-analyse wordt veel toegepast voor stikstof- en ruw eiwitbepaling in voedingsmiddelen, veevoeder, landbouwproducten en andere materialen.<\/p><h3><strong>Hoe werkt de Dumas-methode?<\/strong><\/h3><p>De Dumas-methode bestaat doorgaans uit vier stappen:<\/p><ol start=\"1\" data-spread=\"false\"><li><p><strong>Verbranding:<\/strong> Het monster wordt verbrand bij hoge temperaturen, meestal rond 900 tot 1.000 \u00b0C, in een zuurstofrijke omgeving.<\/p><\/li><li><p><strong>Gasomzetting:<\/strong> Stikstofhoudende verbindingen worden omgezet in stikstofoxiden en andere verbrandingsproducten.<\/p><\/li><li><p><strong>Reductie en zuivering:<\/strong> Stikstofoxiden worden gereduceerd tot moleculaire stikstof (N\u2082). Andere verbrandingsproducten worden verwijderd.<\/p><\/li><li><p><strong>Detectie:<\/strong> Een thermische geleidbaarheidsdetector meet het stikstofgas om het stikstofgehalte van het monster te bepalen.<\/p><\/li><\/ol><p>Het gemeten stikstofgehalte wordt vervolgens gebruikt om het ruw eiwitgehalte te berekenen.\n\nOmdat het proces sterk geautomatiseerd is, kunnen moderne Dumas-analyzers monsters verwerken met minimale tussenkomst van de gebruiker.<\/p><h3 data-pm-slice=\"1 1 []\"><strong>Wat zijn de voordelen van de Dumas-methode?<\/strong><\/h3><p>De Dumas-methode biedt verschillende voordelen voor laboratoria die behoefte hebben aan snelle en geautomatiseerde stikstofanalyse.<\/p><ul data-spread=\"false\"><li><p><strong>Snelle analyse:<\/strong>\u00a0veel moderne Dumas-analyzers voltooien een meting in ongeveer 3 tot 5 minuten.<\/p><\/li><li><p><strong>Geen gevaarlijke natchemische reagentia:<\/strong> geconcentreerde zuren en basen zijn niet nodig in de analysemethode.<\/p><\/li><li><p><strong>Hoge automatiseringsgraad:<\/strong> automatische monsterverwerking ondersteunt laboratoria met hoge monsterdoorvoer.<\/p><\/li><li><p><strong>Brede stikstofbepaling:<\/strong> Dumas bepaalt totaal stikstof, inclusief veel anorganische stikstofverbindingen.<\/p><\/li><li><p><strong>Minder chemisch afval:<\/strong>\u00a0verbrandingsanalyse vermijdt het zure vloeibare afval dat ontstaat bij Kjeldahl-destructie.<\/p><\/li><\/ul><p>Deze voordelen maken Dumas bijzonder aantrekkelijk voor laboratoria die productiviteit, veiligheid en effici\u00ebnte monsterverwerking centraal stellen.<\/p><h3><strong>Wat zijn de beperkingen van de Dumas-methode?<\/strong><\/h3><p>Ondanks de voordelen kent de Dumas-analyse ook beperkingen.<\/p><ul data-spread=\"false\"><li><p><strong>Hogere initi\u00eble investering:<\/strong> geautomatiseerde verbrandingsanalyzers vereisen vaak een grotere investering.<\/p><\/li><li><p><strong>Gasverbruik:<\/strong> de methode vereist zuurstof en geschikte draaggassen.<\/p><\/li><li><p><strong>Routineonderhoud:<\/strong> verbrandingsonderdelen, verbruiksartikelen en gaszuiveringssystemen moeten periodiek worden onderhouden.<\/p><\/li><li><p><strong>Monstereigenschappen:<\/strong> monstergrootte en homogeniteit kunnen de representativiteit van de resultaten be\u00efnvloeden.<\/p><\/li><\/ul><p>Laboratoria moeten deze factoren afwegen tegen hun analytische vereisten en verwachte monsterdoorvoer.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-57b7826f e-con-full e-flex e-con e-parent\" data-id=\"57b7826f\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-5a464aa1 e-flex e-con-boxed e-con e-child\" data-id=\"5a464aa1\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-b8e0762 e-con-full e-flex e-con e-child\" data-id=\"b8e0762\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c3e70e5 elementor-widget elementor-widget-heading\" data-id=\"c3e70e5\" data-element_type=\"widget\" id=\"comparisonkjeldahldumas\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Vergelijking van de Dumas- en Kjeldahl-methode <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7cc07425 articletext elementor-widget elementor-widget-text-editor\" data-id=\"7cc07425\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<table><tbody><tr><td><p><strong>Kenmerk<\/strong><\/p><\/td><td><p><strong>Kjeldahl-methode<\/strong><\/p><\/td><td><p><strong>Dumas<\/strong> <strong>Methode<\/strong><\/p><\/td><\/tr><tr><td><p><strong>Principe<\/strong><\/p><\/td><td><p>Natchemische analyse (destructie, destillatie en titratie)<\/p><\/td><td><p>Verbranding bij hoge temperatuur<\/p><\/td><\/tr><tr><td><p><strong>Provide your feedback on BizChat<\/strong><\/p><\/td><td><p>Alleen organische stikstof<\/p><\/td><td><p>Totaal stikstof (organisch + anorganisch)<\/p><\/td><\/tr><tr><td><p><strong>Typische analysetijd<\/strong><\/p><\/td><td><p>2-4 uur<\/p><\/td><td><p>3-5 minuten<\/p><\/td><\/tr><tr><td><p><strong>Benodigde chemicali\u00ebn<\/strong><\/p><\/td><td><p>Zwavelzuur, natriumhydroxide, katalysatoren<\/p><\/td><td><p>Geen (alleen gassen)<\/p><\/td><\/tr><tr><td><p><strong>Automatisering<\/strong><\/p><\/td><td><p>Beperkt<\/p><\/td><td><p>Volledig geautomatiseerd<\/p><\/td><\/tr><tr><td><p><strong>Veiligheid &amp; milieu<\/strong><\/p><\/td><td><p>Chemisch afval, corrosieve reagentia<\/p><\/td><td><p>Weinig afval, veiliger proces<\/p><\/td><\/tr><tr><td><p><strong>Instrumentkosten<\/strong><\/p><\/td><td><p>Lager<\/p><\/td><td><p>Hoger<\/p><\/td><\/tr><tr><td><p><strong>Gebruikskosten<\/strong><\/p><\/td><td><p>Gemiddeld (reagentia en afvalverwerking)<\/p><\/td><td><p>Laag (voornamelijk gassen)<\/p><\/td><\/tr><tr><td><p><strong>Meest geschikt voor<\/strong><\/p><\/td><td><p>Gereguleerde eiwitbepalingen in voedingsmiddelen en veevoeder<\/p><\/td><td><p>Laboratoria met hoge monsterdoorvoer en totaalstikstofbepalingen<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-75d4bc2 e-flex e-con-boxed e-con e-parent\" data-id=\"75d4bc2\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1e497ad elementor-widget elementor-widget-heading\" data-id=\"1e497ad\" data-element_type=\"widget\" id=\"accuracykjeldahldumas\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Kjeldahl versus Dumas: welke methode is nauwkeuriger?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e2d060a elementor-widget elementor-widget-text-editor\" data-id=\"e2d060a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">Zowel de Kjeldahl- als de Dumas-methode kunnen nauwkeurige en reproduceerbare stikstofmetingen leveren wanneer gevalideerde procedures worden toegepast. De resultaten zijn echter niet altijd identiek.<\/p><p><strong>De Dumas-methode kan iets hogere stikstofwaarden opleveren omdat zij een breder spectrum aan stikstofverbindingen meet.<\/strong> De conventionele Kjeldahl-methode bepaalt bepaalde anorganische stikstofvormen, waaronder nitraat- en nitrietstikstof, niet volledig. Het verschil hangt af van de monstersamenstelling en de hoeveelheid niet-eiwitgebonden stikstof.<\/p><p>Geen van beide methoden meet eiwitten rechtstreeks. Beide bepalen het stikstofgehalte, waarna het ruw eiwitgehalte wordt berekend. Daarom moet de keuze tussen beide methoden gebaseerd zijn op de analytenorm, de monstermatrix en de rapportagevereisten, en niet uitsluitend op analysesnelheid.<\/p><h3><strong>Hoe wordt het eiwitgehalte berekend uit een stikstofbepaling?<\/strong><\/h3><p>Stikstofbepaling speelt een belangrijke rol bij eiwitanalyse in de voedingsmiddelen- en veevoederindustrie.<\/p><p>Zowel de Kjeldahl- als de Dumas-methode bepalen stikstof in plaats van eiwit. Laboratoria berekenen het ruw eiwitgehalte door het gemeten stikstofpercentage te vermenigvuldigen met een omrekeningsfactor.<\/p><p><strong>Ruw eiwit (%) = Stikstof (%) \u00d7 Omrekeningsfactor<\/strong><\/p><p>Een veelgebruikte omrekeningsfactor is 6,25. Deze factor is gebaseerd op de aanname dat eiwitten gemiddeld ongeveer 16% stikstof bevatten.<\/p><p>Een monster met 2% stikstof heeft bijvoorbeeld een geschat ruw eiwitgehalte van:<\/p><p><strong>2% \u00d7 6,25 = 12,5% ruw eiwit<\/strong><\/p><p>De juiste omrekeningsfactor hangt echter af van het monstertype en de gebruikte analytenorm. Sommige producten vereisen andere factoren omdat hun eiwitten een afwijkende stikstofsamenstelling hebben.<\/p><p>Geen van beide methoden maakt onderscheid tussen eiwitstikstof en alle vormen van niet-eiwitgebonden stikstof. Daarom vertegenwoordigt de berekende waarde voor ruw eiwit niet noodzakelijk de exacte hoeveelheid werkelijk eiwit.<\/p><p>Dit onderscheid is vooral belangrijk bij complexe voedingsmiddelen, plantaardige eiwitten en andere materialen die niet-eiwitgebonden stikstofverbindingen bevatten.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4a57c2b6 e-con-full e-flex e-con e-parent\" data-id=\"4a57c2b6\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-726223c5 e-flex e-con-boxed e-con e-child\" data-id=\"726223c5\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-7d4249c9 e-con-full e-flex e-con e-child\" data-id=\"7d4249c9\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-562273c6 e-con-full e-flex e-con e-child\" data-id=\"562273c6\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-2942d5dc e-con-full e-flex e-con e-child\" data-id=\"2942d5dc\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-105619e4 elementor-widget elementor-widget-heading\" data-id=\"105619e4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Wanneer is Kjeldahl de beste keuze voor stikstofbepaling?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f186081 elementor-widget elementor-widget-text-editor\" data-id=\"f186081\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">De Kjeldahl-methode blijft een geschikte keuze voor laboratoria die werken volgens gevestigde methoden voor stikstof- en eiwitbepaling.<\/p><p><b>Het is vooral handig wanneer:<\/b><\/p><ul data-spread=\"false\"><li><p><strong>Wettelijke of normatieve vereisten de Kjeldahl-methode voorschrijven:<\/strong> sommige analytenormen vereisen expliciet toepassing van de Kjeldahl-methode.<\/p><\/li><li><p><strong>Monsters hoofdzakelijk organisch stikstof bevatten:<\/strong> veelvoorkomende toepassingen zijn zuivelproducten, vlees, granen, dranken en veevoeder.<\/p><\/li><li><p><strong>Bestaande Kjeldahl-apparatuur aanwezig is:<\/strong> laboratoria kunnen blijven werken met gevalideerde workflows.<\/p><\/li><li><p><strong>De monsterdoorvoer relatief beperkt is:<\/strong> langere analysetijden zijn vaak acceptabel bij kleinere monsteraantallen.<\/p><\/li><\/ul><p>De Kjeldahl-methode blijft bijzonder waardevol voor traditionele eiwitanalyse en toepassingen waarvoor methodspecifieke validatie vereist is.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7ab0a8b7 e-con-full e-flex e-con e-child\" data-id=\"7ab0a8b7\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-660ef38 elementor-widget elementor-widget-image\" data-id=\"660ef38\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"420\" src=\"https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-39-1024x538.png\" class=\"attachment-large size-large wp-image-4896\" alt=\"\" srcset=\"https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-39-1024x538.png 1024w, https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-39-300x158.png 300w, https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-39-768x403.png 768w, https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-39-18x9.png 18w, https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-39.png 1200w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-13115184 e-con-full e-flex e-con e-child\" data-id=\"13115184\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-17106d68 e-con-full e-flex e-con e-child\" data-id=\"17106d68\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4c96b95 elementor-widget elementor-widget-image\" data-id=\"4c96b95\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"420\" src=\"https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-40-1024x538.png\" class=\"attachment-large size-large wp-image-4897\" alt=\"\" srcset=\"https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-40-1024x538.png 1024w, https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-40-300x158.png 300w, https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-40-768x403.png 768w, https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-40-18x9.png 18w, https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-40.png 1200w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4e492e35 e-con-full e-flex e-con e-child\" data-id=\"4e492e35\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-7facd2e0 e-con-full e-flex e-con e-child\" data-id=\"7facd2e0\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5d661282 elementor-widget elementor-widget-heading\" data-id=\"5d661282\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Wanneer is Dumas de beste keuze voor stikstofbepaling?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2d3ba250 elementor-widget elementor-widget-text-editor\" data-id=\"2d3ba250\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">De Dumas-methode is bijzonder geschikt voor laboratoria die snelle en geautomatiseerde stikstofanalyses nodig hebben.<\/p><p><strong>Het is ideaal voor:<\/strong><\/p><ul data-spread=\"false\"><li><p><strong>Laboratoria met hoge monsterdoorvoer:<\/strong>\u00a0snelle analyses ondersteunen routinematige testen van grote aantallen monsters.<\/p><\/li><li><p><strong>Kwaliteitscontrole van levensmiddelen en veevoeder:<\/strong>\u00a0geautomatiseerde stikstofbepaling ondersteunt consistente productcontrole.<\/p><\/li><li><p><strong>Laboratoria die veiligheid prioriteren:<\/strong> de methode vermijdt geconcentreerde zuren en chemische destructie.<\/p><\/li><li><p><strong>Milieu- en landbouwonderzoek:<\/strong> totaalstikstofbepalingen zijn waardevol voor geschikte bodem-, meststof- en andere monstermatrices.<\/p><\/li><li><p><strong>Laboratoria die chemisch afval verminderen:<\/strong> verbrandingsanalyse elimineert de noodzaak van zure destructieresten.<\/p><\/li><\/ul><p>De hoge snelheid en automatiseringsgraad kunnen de grotere initi\u00eble investering rechtvaardigen, vooral in laboratoria die dagelijks veel monsters analyseren.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b1bbe7c e-flex e-con-boxed e-con e-parent\" data-id=\"b1bbe7c\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-48b1bb3 elementor-widget elementor-widget-heading\" data-id=\"48b1bb3\" data-element_type=\"widget\" id=\"howtochoosekjeldahldumas\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Waarmee moeten laboratoria rekening houden bij de keuze tussen Kjeldahl en Dumas?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b1de3e2 e-con-full e-flex e-con e-parent\" data-id=\"b1de3e2\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-977c3a3 e-flex e-con-boxed e-con e-child\" data-id=\"977c3a3\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-29ab657 e-con-full e-flex e-con e-child\" data-id=\"29ab657\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e098898 articletext elementor-widget elementor-widget-text-editor\" data-id=\"e098898\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">Voordat een methode voor stikstofbepaling wordt geselecteerd, moeten verschillende praktische factoren worden ge\u00ebvalueerd.<\/p><p><strong>1. Analytische vereisten<\/strong><\/p><p>Controleer of de toepasselijke norm de Kjeldahl-methode, de Dumas-methode of beide toestaat. De vereiste procedure kan afhangen van de monstermatrix en de sector.<\/p><p><strong>2. Monsterdoorvoer<\/strong><\/p><p>Voor laboratoria die dagelijks grote aantallen monsters verwerken, kan de Dumas-methode de analysetijd aanzienlijk verkorten en het aantal handmatige handelingen verminderen.<\/p><p><strong>3. Monstersamenstelling<\/strong><\/p><p>Houd rekening met de aanwezigheid van anorganische stikstofverbindingen die met de conventionele Kjeldahl-methode mogelijk niet volledig worden bepaald.<\/p><p><strong>4. Laboratoriumveiligheid<\/strong><\/p><p>De Kjeldahl-methode vereist chemische destructie en een geschikte verwerking van afvalstoffen. De Dumas-methode vermijdt gevaarlijke natchemische reagentia, maar vereist apparatuur voor hoge temperaturen en omgang met gassen.<\/p><p><strong>5. Totale eigendomskosten<\/strong><\/p><p>Vergelijk de investering in apparatuur, verbruiksartikelen, gasverbruik, arbeidskosten, onderhoud en afvalverwerking.<\/p><p>Een methode met een hogere initi\u00eble investering kan op termijn operationele voordelen bieden, afhankelijk van de werklast van het laboratorium.<\/p><h2>\u00a0<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-03ec447 e-flex e-con-boxed e-con e-parent\" data-id=\"03ec447\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3e40a6e elementor-widget elementor-widget-heading\" data-id=\"3e40a6e\" data-element_type=\"widget\" id=\"readmorekjeldahldumas\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Lees meer<\/h2>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-729042c e-con-full e-flex e-con e-child\" data-id=\"729042c\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-b92198f e-con-full e-flex e-con e-child\" data-id=\"b92198f\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-627e16c elementor-widget elementor-widget-heading\" data-id=\"627e16c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/scispx.com\/nl\/methoden-voor-stikstofbepaling\/\">Methoden voor het bepalen van stikstof en eiwitten<\/a><\/span>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-21fbf2c elementor-view-default elementor-widget elementor-widget-icon\" data-id=\"21fbf2c\" data-element_type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/scispx.com\/nl\/methoden-voor-stikstofbepaling\/\">\n\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-right\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M190.5 66.9l22.2-22.2c9.4-9.4 24.6-9.4 33.9 0L441 239c9.4 9.4 9.4 24.6 0 33.9L246.6 467.3c-9.4 9.4-24.6 9.4-33.9 0l-22.2-22.2c-9.5-9.5-9.3-25 .4-34.3L311.4 296H24c-13.3 0-24-10.7-24-24v-32c0-13.3 10.7-24 24-24h287.4L190.9 101.2c-9.8-9.3-10-24.8-.4-34.3z\"><\/path><\/svg>\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6070f45 e-con-full e-flex e-con e-child\" data-id=\"6070f45\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9be76a9 elementor-widget elementor-widget-heading\" data-id=\"9be76a9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/scispx.com\/nl\/eiwitbepaling-in-voedingsmiddelenanalyse\/\">Eiwitbepaling in voedingsmiddelenanalyse<\/a><\/span>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e63fb8a elementor-view-default elementor-widget elementor-widget-icon\" data-id=\"e63fb8a\" data-element_type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/scispx.com\/nl\/eiwitbepaling-in-voedingsmiddelenanalyse\/\">\n\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-right\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M190.5 66.9l22.2-22.2c9.4-9.4 24.6-9.4 33.9 0L441 239c9.4 9.4 9.4 24.6 0 33.9L246.6 467.3c-9.4 9.4-24.6 9.4-33.9 0l-22.2-22.2c-9.5-9.5-9.3-25 .4-34.3L311.4 296H24c-13.3 0-24-10.7-24-24v-32c0-13.3 10.7-24 24-24h287.4L190.9 101.2c-9.8-9.3-10-24.8-.4-34.3z\"><\/path><\/svg>\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-11e449c e-con-full e-flex e-con e-child\" data-id=\"11e449c\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7f5b3e3 elementor-widget elementor-widget-heading\" data-id=\"7f5b3e3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/scispx.com\/nl\/eiwitbepaling-per-voedingsmiddelcategorie\/\">Eiwitbepaling per voedingsmiddelcategorie<\/a><\/span>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8a28018 elementor-view-default elementor-widget elementor-widget-icon\" data-id=\"8a28018\" data-element_type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/scispx.com\/nl\/eiwitbepaling-per-voedingsmiddelcategorie\/\">\n\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-right\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M190.5 66.9l22.2-22.2c9.4-9.4 24.6-9.4 33.9 0L441 239c9.4 9.4 9.4 24.6 0 33.9L246.6 467.3c-9.4 9.4-24.6 9.4-33.9 0l-22.2-22.2c-9.5-9.5-9.3-25 .4-34.3L311.4 296H24c-13.3 0-24-10.7-24-24v-32c0-13.3 10.7-24 24-24h287.4L190.9 101.2c-9.8-9.3-10-24.8-.4-34.3z\"><\/path><\/svg>\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-427a0e2 e-con-full e-flex e-con e-child\" data-id=\"427a0e2\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4a152e5 elementor-widget elementor-widget-heading\" data-id=\"4a152e5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/scispx.com\/nl\/nitrogen-and-protein-analyzers\/\">Stikstof- en eiwitanalysatoren\n<\/a><\/span>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a393db elementor-view-default elementor-widget elementor-widget-icon\" data-id=\"0a393db\" data-element_type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/scispx.com\/nl\/nitrogen-and-protein-analyzers\/\">\n\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-right\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M190.5 66.9l22.2-22.2c9.4-9.4 24.6-9.4 33.9 0L441 239c9.4 9.4 9.4 24.6 0 33.9L246.6 467.3c-9.4 9.4-24.6 9.4-33.9 0l-22.2-22.2c-9.5-9.5-9.3-25 .4-34.3L311.4 296H24c-13.3 0-24-10.7-24-24v-32c0-13.3 10.7-24 24-24h287.4L190.9 101.2c-9.8-9.3-10-24.8-.4-34.3z\"><\/path><\/svg>\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e8a3be6 e-con-full e-flex e-con e-child\" data-id=\"e8a3be6\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c1d1e02 elementor-widget elementor-widget-heading\" data-id=\"c1d1e02\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/scispx.com\/nl\/wikispx\/how-do-you-choose-the-right-combustion-analyzer-for-your-lab\/\">Kies de juiste verbrandingsanalysator voor uw laboratorium<\/a><\/span>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ffdd25 elementor-view-default elementor-widget elementor-widget-icon\" data-id=\"1ffdd25\" data-element_type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/scispx.com\/nl\/wikispx\/how-do-you-choose-the-right-combustion-analyzer-for-your-lab\/\">\n\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-right\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M190.5 66.9l22.2-22.2c9.4-9.4 24.6-9.4 33.9 0L441 239c9.4 9.4 9.4 24.6 0 33.9L246.6 467.3c-9.4 9.4-24.6 9.4-33.9 0l-22.2-22.2c-9.5-9.5-9.3-25 .4-34.3L311.4 296H24c-13.3 0-24-10.7-24-24v-32c0-13.3 10.7-24 24-24h287.4L190.9 101.2c-9.8-9.3-10-24.8-.4-34.3z\"><\/path><\/svg>\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ede8104 e-con-full e-flex e-con e-child\" data-id=\"ede8104\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-aa8f0f3 elementor-widget elementor-widget-heading\" data-id=\"aa8f0f3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/scispx.com\/nl\/wikispx\/what-are-the-most-common-errors-in-combustion-analysis\/\">De meest voorkomende fouten bij verbrandingsanalyses<\/a><\/span>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8473883 elementor-view-default elementor-widget elementor-widget-icon\" data-id=\"8473883\" data-element_type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/scispx.com\/nl\/wikispx\/what-are-the-most-common-errors-in-combustion-analysis\/\">\n\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-right\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M190.5 66.9l22.2-22.2c9.4-9.4 24.6-9.4 33.9 0L441 239c9.4 9.4 9.4 24.6 0 33.9L246.6 467.3c-9.4 9.4-24.6 9.4-33.9 0l-22.2-22.2c-9.5-9.5-9.3-25 .4-34.3L311.4 296H24c-13.3 0-24-10.7-24-24v-32c0-13.3 10.7-24 24-24h287.4L190.9 101.2c-9.8-9.3-10-24.8-.4-34.3z\"><\/path><\/svg>\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8996603 e-flex e-con-boxed e-con e-parent\" data-id=\"8996603\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-286561e e-con-full e-flex e-con e-child\" data-id=\"286561e\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-39555de elementor-widget__width-initial elementor-view-default elementor-widget elementor-widget-icon\" data-id=\"39555de\" data-element_type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<div class=\"elementor-icon\">\n\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-far-comment\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 32C114.6 32 0 125.1 0 240c0 47.6 19.9 91.2 52.9 126.3C38 405.7 7 439.1 6.5 439.5c-6.6 7-8.4 17.2-4.6 26S14.4 480 24 480c61.5 0 110-25.7 139.1-46.3C192 442.8 223.2 448 256 448c141.4 0 256-93.1 256-208S397.4 32 256 32zm0 368c-26.7 0-53.1-4.1-78.4-12.1l-22.7-7.2-19.5 13.8c-14.3 10.1-33.9 21.4-57.5 29 7.3-12.1 14.4-25.7 19.9-40.2l10.6-28.1-20.6-21.8C69.7 314.1 48 282.2 48 240c0-88.2 93.3-160 208-160s208 71.8 208 160-93.3 160-208 160z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1b80b33 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"1b80b33\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h4>Bespreek je applicatie met onze Xperts<\/h4><p>Onze Xperts bespreken graag jouw toepassing en helpen je bij het vinden van de juiste oplossing.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f74b4c3 elementor-widget elementor-widget-button\" data-id=\"f74b4c3\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjczNzYiLCJ0b2dnbGUiOmZhbHNlfQ%3D%3D\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contacteer onze Xperts<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-be0cf55 e-con-full e-flex e-con e-parent\" data-id=\"be0cf55\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-447a04ee e-flex e-con-boxed e-con e-child\" data-id=\"447a04ee\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-6edee54 e-con-full e-flex e-con e-child\" data-id=\"6edee54\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-338053f0 elementor-widget elementor-widget-heading\" data-id=\"338053f0\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">FAQ<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-763a6d8f e-con-full e-flex e-con e-child\" data-id=\"763a6d8f\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6e020536 elementor-widget elementor-widget-n-accordion\" data-id=\"6e020536\" data-element_type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;expanded&quot;,&quot;max_items_expended&quot;:&quot;one&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordeon. Links openen met Enter of Spatie, sluiten met Escape en navigeren met Pijltjestoetsen\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1840\" class=\"e-n-accordion-item\" open>\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-1840\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Wat is het belangrijkste verschil tussen de Kjeldahl-methode en de Dumas-methode? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1840\" class=\"elementor-element elementor-element-99ab562 e-con-full e-flex e-con e-child\" data-id=\"99ab562\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3330b675 elementor-widget elementor-widget-text-editor\" data-id=\"3330b675\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">De Kjeldahl-methode bepaalt stikstof via chemische destructie, destillatie en titratie. De Dumas-methode maakt gebruik van verbranding bij hoge temperatuur en gasdetectie. Dumas is doorgaans sneller en bepaalt een breder spectrum aan stikstofverbindingen.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1841\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1841\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Is de Dumas-methode beter dan de Kjeldahl-methode? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1841\" class=\"elementor-element elementor-element-71b090e2 e-con-full e-flex e-con e-child\" data-id=\"71b090e2\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-73bb6e4c elementor-widget elementor-widget-text-editor\" data-id=\"73bb6e4c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">Niet noodzakelijk. De Dumas-methode biedt voordelen op het gebied van snelheid, automatisering en beperking van chemisch afval. De Kjeldahl-methode blijft echter belangrijk wanneer analytenormen deze methode expliciet voorschrijven.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1842\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1842\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Meet de Dumas-methode eiwitten rechtstreeks? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1842\" class=\"elementor-element elementor-element-13f8e65d e-con-full e-flex e-con e-child\" data-id=\"13f8e65d\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-12ab8c3d elementor-widget elementor-widget-text-editor\" data-id=\"12ab8c3d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">Nee. De Dumas-methode meet het stikstofgehalte. Laboratoria berekenen vervolgens het ruw eiwitgehalte met een geschikte stikstof-naar-eiwitomrekeningsfactor. De Kjeldahl-methode volgt hetzelfde algemene principe.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1843\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1843\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Welke methode is sneller, Kjeldahl of Dumas? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1843\" class=\"elementor-element elementor-element-83c17dd e-flex e-con-boxed e-con e-child\" data-id=\"83c17dd\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a1a9f6b elementor-widget elementor-widget-text-editor\" data-id=\"a1a9f6b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">De Dumas-methode is doorgaans sneller. Veel moderne instrumenten voltooien een analyse binnen ongeveer 3 tot 5 minuten. Een volledige Kjeldahl-analyse neemt vaak meerdere uren in beslag, hoewel automatisering en batchverwerking de productiviteit kunnen verhogen.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1844\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"5\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1844\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Waarom kan de Dumas-methode hogere stikstofresultaten geven dan de Kjeldahl-methode? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1844\" class=\"elementor-element elementor-element-f33141c e-flex e-con-boxed e-con e-child\" data-id=\"f33141c\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2071426 elementor-widget elementor-widget-text-editor\" data-id=\"2071426\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">De Dumas-methode bepaalt doorgaans een breder spectrum aan stikstofverbindingen, waaronder anorganische stikstof. De conventionele Kjeldahl-methode bepaalt nitraat- en nitrietstikstof niet volledig zonder aanvullende behandeling.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Kjeldahl versus Dumas: welke methode voor stikstofbepaling is geschikt voor uw laboratorium? Neem contact op met onze experts Welke methode voor stikstofbepaling is geschikt voor uw laboratorium? Meer toepassingen in de voedingsmiddelenindustrie Stikstofbepaling is essentieel bij het testen van voedingsmiddelen en diervoeders, in de landbouw, in milieulaboratoria en bij de productie van chemische stoffen. Maar hoe bepaalt u welke methode u moet gebruiken: Kjeldahl of Dumas? Beide [\u2026]<\/p>","protected":false},"author":171,"featured_media":4889,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_mo_disable_npp":"","footnotes":""},"class_list":["post-4861","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Kjeldahl vs. Dumas | Differences, methods and applications<\/title>\n<meta name=\"description\" content=\"Dumas analysis, Dumas method, Kjeldahl method, nitrogen determination, protein determination, Dumas vs Kjeldahl, nitrogen analysis.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kjeldahl vs. Dumas | Differences, methods and applications\" \/>\n<meta property=\"og:description\" content=\"Dumas analysis, Dumas method, Kjeldahl method, nitrogen determination, protein determination, Dumas vs Kjeldahl, nitrogen analysis.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/\" \/>\n<meta property=\"og:site_name\" content=\"SciSPX Analysis simplified\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-19T12:20:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-38-e1771577458761.png\" \/>\n\t<meta property=\"og:image:width\" content=\"936\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Geschatte leestijd\" \/>\n\t<meta name=\"twitter:data1\" content=\"9 minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/\",\"url\":\"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/\",\"name\":\"Kjeldahl vs. Dumas | Differences, methods and applications\",\"isPartOf\":{\"@id\":\"https:\/\/scispx.com\/nl\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-38-e1771577458761.png\",\"datePublished\":\"2026-02-20T10:06:49+00:00\",\"dateModified\":\"2026-10-19T12:20:34+00:00\",\"description\":\"Dumas analysis, Dumas method, Kjeldahl method, nitrogen determination, protein determination, Dumas vs Kjeldahl, nitrogen analysis.\",\"breadcrumb\":{\"@id\":\"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/#breadcrumb\"},\"inLanguage\":\"nl-NL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"nl-NL\",\"@id\":\"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/#primaryimage\",\"url\":\"https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-38-e1771577458761.png\",\"contentUrl\":\"https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-38-e1771577458761.png\",\"width\":936,\"height\":630,\"caption\":\"Kjeldahl or Dumas\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/scispx.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Kjeldahl vs. Dumas: differences, methods and applications\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/scispx.com\/nl\/#website\",\"url\":\"https:\/\/scispx.com\/nl\/\",\"name\":\"SciSPX Analysis simplified\",\"description\":\"SciSPX Analysis simplified\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/scispx.com\/nl\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"nl-NL\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Kjeldahl versus Dumas | Verschillen, methoden en toepassingen","description":"Dumas-analyse, Dumas-methode, Kjeldahl-methode, stikstofbepaling, eiwitbepaling, Dumas versus Kjeldahl, stikstofanalyse.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/","og_locale":"nl_NL","og_type":"article","og_title":"Kjeldahl vs. Dumas | Differences, methods and applications","og_description":"Dumas analysis, Dumas method, Kjeldahl method, nitrogen determination, protein determination, Dumas vs Kjeldahl, nitrogen analysis.","og_url":"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/","og_site_name":"SciSPX Analysis simplified","article_modified_time":"2026-10-19T12:20:34+00:00","og_image":[{"width":936,"height":630,"url":"https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-38-e1771577458761.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Geschatte leestijd":"9 minuten"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/","url":"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/","name":"Kjeldahl versus Dumas | Verschillen, methoden en toepassingen","isPartOf":{"@id":"https:\/\/scispx.com\/nl\/#website"},"primaryImageOfPage":{"@id":"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/#primaryimage"},"image":{"@id":"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/#primaryimage"},"thumbnailUrl":"https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-38-e1771577458761.png","datePublished":"2026-02-20T10:06:49+00:00","dateModified":"2026-10-19T12:20:34+00:00","description":"Dumas-analyse, Dumas-methode, Kjeldahl-methode, stikstofbepaling, eiwitbepaling, Dumas versus Kjeldahl, stikstofanalyse.","breadcrumb":{"@id":"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/#breadcrumb"},"inLanguage":"nl-NL","potentialAction":[{"@type":"ReadAction","target":["https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/"]}]},{"@type":"ImageObject","inLanguage":"nl-NL","@id":"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/#primaryimage","url":"https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-38-e1771577458761.png","contentUrl":"https:\/\/scispx.com\/wp-content\/uploads\/2026\/02\/LinkedIn-SciSPX-38-e1771577458761.png","width":936,"height":630,"caption":"Kjeldahl or Dumas"},{"@type":"BreadcrumbList","@id":"https:\/\/scispx.com\/nl\/kjeldahl-vs-dumas\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/scispx.com\/"},{"@type":"ListItem","position":2,"name":"Kjeldahl vs. Dumas: differences, methods and applications"}]},{"@type":"WebSite","@id":"https:\/\/scispx.com\/nl\/#website","url":"https:\/\/scispx.com\/nl\/","name":"SciSPX Analyse vereenvoudigd","description":"SciSPX Analyse vereenvoudigd","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/scispx.com\/nl\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"nl-NL"}]}},"_links":{"self":[{"href":"https:\/\/scispx.com\/nl\/wp-json\/wp\/v2\/pages\/4861","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scispx.com\/nl\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/scispx.com\/nl\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/scispx.com\/nl\/wp-json\/wp\/v2\/users\/171"}],"replies":[{"embeddable":true,"href":"https:\/\/scispx.com\/nl\/wp-json\/wp\/v2\/comments?post=4861"}],"version-history":[{"count":0,"href":"https:\/\/scispx.com\/nl\/wp-json\/wp\/v2\/pages\/4861\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/scispx.com\/nl\/wp-json\/wp\/v2\/media\/4889"}],"wp:attachment":[{"href":"https:\/\/scispx.com\/nl\/wp-json\/wp\/v2\/media?parent=4861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}