{"id":5054,"date":"2026-04-15T15:20:40","date_gmt":"2026-04-15T13:20:40","guid":{"rendered":"https:\/\/scispx.com\/?post_type=instruments&#038;p=5054"},"modified":"2026-10-12T09:23:14","modified_gmt":"2026-10-12T07:23:14","slug":"vario-isotope-select-elemental-analyzer-for-isotope-ratio-mass-spectrometry","status":"publish","type":"instruments","link":"https:\/\/scispx.com\/nl\/instruments\/vario-isotope-select-elemental-analyzer-for-isotope-ratio-mass-spectrometry\/","title":{"rendered":"Vario ISOTOPE select"},"content":{"rendered":"<h2>EA-IRMS<\/h2>\n<h3><strong>Wat is de Vario ISOTOPE select?<\/strong><\/h3>\n<p data-start=\"178\" data-end=\"484\">De vario ISOTOPE select is een elementenanalyzer voor isotopenverhouding\u2011massaspectrometrie (EA\u2011IRMS) die betrouwbare resultaten levert met een hoge robuustheid. Het instrument is ideaal voor gelijktijdige <strong>koolstof\u2011, stikstof\u2011 en zwavelisotopenanalyse<\/strong> van monsters <strong>tot 300 mg.<\/strong><\/p>\n<p data-start=\"486\" data-end=\"744\">Door effici\u00ebnte gaspreconcentratie te combineren met nauwkeurige peakscheiding, garandeert het systeem een hoge nauwkeurigheid en precisie. Daarnaast is er een optie voor \u03b4\u00b2H\u2011bepaling in water en is het instrument geoptimaliseerd voor langdurig gebruik met minimale onderhoudsbehoefte.<\/p>\n<p data-start=\"982\" data-end=\"1212\">Het systeem is uitermate geschikt voor routinematige high\u2011throughput isotopenanalyse, zonder in te boeten op analytische prestaties. De robuustheid, automatisering en lage onderhoudsvereisten zorgen voor hoge uptime en betrouwbare dagelijkse werking.<\/p>\n<p data-start=\"1214\" data-end=\"1237\"><strong>Belangrijkste voordelen:<\/strong><\/p>\n<ul data-start=\"1238\" data-end=\"1473\">\n<li data-section-id=\"1kkrenx\" data-start=\"1238\" data-end=\"1300\">Betrouwbare prestaties voor gelijktijdige CNS\u2011isotopenanalyse<\/li>\n<li data-section-id=\"1b808kd\" data-start=\"1301\" data-end=\"1355\">Hoge mate van automatisering met minimale tussenkomst van de gebruiker<\/li>\n<li data-section-id=\"63gddc\" data-start=\"1356\" data-end=\"1407\">Onderhoudsarm ontwerp voor continue werking<\/li>\n<li data-section-id=\"zvv1c9\" data-start=\"1408\" data-end=\"1473\">Autosampler\u2011opties voor onbeheerde high\u2011throughput workflows<\/li>\n<\/ul>\n<h3 data-section-id=\"f63qgz\" data-start=\"1480\" data-end=\"1528\"><strong>Hoe zorgt de Vario ISOTOPE select voor een uitstekende piekscheiding?<\/strong><\/h3>\n<p data-start=\"1530\" data-end=\"1658\">Het systeem maakt gebruik van gepatenteerde Temperature Programmed Desorption (TPD)\u2011technologie om volledige peakscheiding tijdens de analyse te realiseren.<\/p>\n<p data-start=\"1660\" data-end=\"1815\">In tegenstelling tot vaste verwarmingsmethoden regelt TPD de temperatuur dynamisch, zodat gassen pas vrijkomen nadat de vorige piek volledig is teruggekeerd naar de baseline. Dit zorgt voor:<\/p>\n<ul data-start=\"1816\" data-end=\"2032\">\n<li data-section-id=\"1pko07o\" data-start=\"1816\" data-end=\"1875\">Volledige peakscheiding, zelfs bij extreme elementverhoudingen<\/li>\n<li data-section-id=\"g07ydf\" data-start=\"1876\" data-end=\"1933\">Uitstekende piekvormen en hoge signaal-ruisverhoudingen<\/li>\n<li data-section-id=\"1biu4id\" data-start=\"1934\" data-end=\"2032\">Nauwkeurige detectie van zeer lage zwavelconcentraties in koolstofrijke matrices (bijv. boomringen)<\/li>\n<\/ul>\n<p data-start=\"2034\" data-end=\"2063\"><strong>Dit proces wordt ondersteund door:<\/strong><\/p>\n<ul data-start=\"2064\" data-end=\"2164\">\n<li data-section-id=\"1c3unnh\" data-start=\"2064\" data-end=\"2103\">Oventemperaturen tot 1.200 \u00b0C<\/li>\n<li data-section-id=\"134z6o3\" data-start=\"2104\" data-end=\"2164\">Jet-injectie van zuurstof direct op het verbrandingspunt<\/li>\n<\/ul>\n<p data-start=\"2166\" data-end=\"2239\">Samen zorgen deze eigenschappen voor een hoge gevoeligheid en analytische nauwkeurigheid.<\/p>\n<h3 data-section-id=\"1y6r1my\" data-start=\"2246\" data-end=\"2289\"><strong>Hoe wordt laag\u2011niveau \u03b4\u00b9\u2075N\u2011analyse gerealiseerd?<\/strong><\/h3>\n<p data-start=\"2291\" data-end=\"2407\">De vario ISOTOPE select maakt gebruik van een zero\u2011blank monstertoevoersysteem, waardoor betrouwbare analyse van lage \u03b4\u00b9\u2075N\u2011concentraties mogelijk is.<\/p>\n<p data-start=\"2409\" data-end=\"2640\">Daarnaast wordt zuurstof direct bij het monster ge\u00efnjecteerd tijdens de verbranding. Dit garandeert volledige verbranding met een minimaal zuurstofverbruik en levert matrix\u2011onafhankelijke prestaties, zelfs bij moeilijke monstertypes.<\/p>\n<p data-start=\"2642\" data-end=\"2761\">Dankzij de ge\u00efntegreerde thermische geleidbaarheidsdetector (TCD) bereikt het systeem een elementaire detectielimiet van &lt;\u202f100 ppm.<\/p>\n<h3 data-section-id=\"1ewkm7i\" data-start=\"2768\" data-end=\"2806\"><strong>Ontworpen voor gebruiksgemak en hoge uptime<\/strong><\/h3>\n<p data-start=\"2808\" data-end=\"2883\">Het instrument is ideaal om stilstand te minimaliseren en onderhoud te vereenvoudigen.<\/p>\n<p data-start=\"2885\" data-end=\"2909\"><strong>Ontwerpkenmerken zijn onder andere:<\/strong><\/p>\n<ul data-start=\"2910\" data-end=\"3086\">\n<li data-section-id=\"eud3da\" data-start=\"2910\" data-end=\"2974\">Grote asvinger en gescheiden verbrandings\u2011 en reductiebuizen<\/li>\n<li data-section-id=\"1f5di9w\" data-start=\"2975\" data-end=\"3024\">Onderhoud zonder gereedschap dankzij klemverbindingen<\/li>\n<li data-section-id=\"vsv9ne\" data-start=\"3025\" data-end=\"3086\">Uitschuifbare oven voor gemakkelijke toegang en betere ergonomie<\/li>\n<\/ul>\n<p data-start=\"3088\" data-end=\"3161\">Deze eigenschappen dragen bij aan een hoge systeemuptime en consistente werking.<\/p>\n<h3 data-section-id=\"qsgyev\" data-start=\"3168\" data-end=\"3220\"><strong>High\u2011throughput analyse met autosampler\u2011opties<\/strong><\/h3>\n<p data-start=\"3222\" data-end=\"3329\">De vario ISOTOPE select ondersteunt geautomatiseerde, onbeheerde werking met flexibele autosamplerconfiguraties.<\/p>\n<p data-start=\"3331\" data-end=\"3349\"><strong>Beschikbare opties:<\/strong><\/p>\n<ul data-start=\"3350\" data-end=\"3558\">\n<li data-section-id=\"6m18ak\" data-start=\"3350\" data-end=\"3419\">Autosampler met 120 of 240 posities voor vaste en vloeibare monsters (capsules)<\/li>\n<li data-section-id=\"jfofdt\" data-start=\"3420\" data-end=\"3475\">Tijdens analyse bij te vullen voor continue werking<\/li>\n<li data-section-id=\"1ldrjea\" data-start=\"3476\" data-end=\"3558\">Optionele 2\u202fml vial\u2011autosampler (50 posities) voor vloeistoffen, met spoel\u2011 en afvalfles<\/li>\n<\/ul>\n<p data-start=\"3560\" data-end=\"3638\">Dit maakt 24\/7\u2011werking en een hoge monstercapaciteit mogelijk, zelfs voor microsamples.<\/p>\n<h3 data-section-id=\"lrmpac\" data-start=\"3645\" data-end=\"3679\"><strong>Welke isotopen kunnen worden geanalyseerd?<\/strong><\/h3>\n<p data-start=\"3681\" data-end=\"3709\">Het systeem is geoptimaliseerd voor:<\/p>\n<ul data-start=\"3710\" data-end=\"3755\">\n<li data-section-id=\"2gvugl\" data-start=\"3710\" data-end=\"3718\">\u03b4\u00b9\u00b3C<\/li>\n<li data-section-id=\"7der26\" data-start=\"3719\" data-end=\"3727\">\u03b4\u00b9\u2075N<\/li>\n<li data-section-id=\"1wxosco\" data-start=\"3728\" data-end=\"3736\">\u03b4\u00b3\u2074S<\/li>\n<li data-section-id=\"1o79ull\" data-start=\"3737\" data-end=\"3755\">\u03b4\u00b2H (optioneel)<\/li>\n<\/ul>\n<h3 data-section-id=\"r54clx\" data-start=\"3762\" data-end=\"3787\"><strong>Analytische prestaties<\/strong><\/h3>\n<div>\n<table>\n<tbody>\n<tr>\n<th scope=\"row\"><strong>Weegbereik<\/strong><\/th>\n<td>Van microsamples (20\u202f\u00b5g) tot semi\u2011macromonsters (300\u202fmg, bijv. bodem)<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Elementaire concentratiebereik (absoluut)<\/strong><\/th>\n<td>Koolstof: tot 7 mg<br \/>\nStikstof: tot 10 mg<br \/>\nZwavel: tot 2 mg<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Precisie  (extern, 1\u03c3)<\/strong><\/th>\n<td>Elementair (C, N, S): &lt; 0,1 %<br \/>\n\u03b4\u00b9\u00b3C: 0,1 \u2030<br \/>\n\u03b4\u00b9\u2075N: 0,15 \u2030<br \/>\n\u03b4\u00b3\u2074S: 0,2 \u2030<br \/>\n\u03b4\u00b2H (optioneel): 0.5 \u2030<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Analysetijd<\/strong><\/th>\n<td>Ca. 3-4 minuten per element<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Optimalisatie<\/strong><\/th>\n<td>Automatisch, afhankelijk van monstertype, configuratie en samenstelling<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3><\/h3>\n<p><script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\\\/\",\n    \"@type\": \"Product\",\n    \"name\": \"Vario ISOTOPE select\",\n    \"image\": \"https:\\\/\\\/scispx.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/vario-ISOTOPE-select.webp\",\n    \"description\": \"The vario ISOTOPE select is an elemental analyzer designed for isotope ratio mass spectrometry (EA-IRMS) that delivers reliable results with high robustness. 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