{"id":1063,"date":"2022-12-20T16:46:03","date_gmt":"2022-12-20T15:46:03","guid":{"rendered":"https:\/\/scispx.com\/instruments\/unicube-trace\/"},"modified":"2025-11-17T15:52:10","modified_gmt":"2025-11-17T13:52:10","slug":"unicube-analyseur-elementaire-organique","status":"publish","type":"instruments","link":"https:\/\/scispx.com\/fr\/instruments\/unicube-trace\/","title":{"rendered":"UNICUBE trace"},"content":{"rendered":"

D\u00e9termination ind\u00e9pendante de la matrice de l\u2019azote et du carbone \u00e0 des niveaux traces<\/h2>\n

Analyseur \u00e9l\u00e9mentaire organique<\/strong><\/h3>\n

Le UNICUBE trace est un analyseur \u00e9l\u00e9mentaire organique<\/strong> con\u00e7u pour mesurer de tr\u00e8s faibles concentrations d\u2019azote et de carbone dans des \u00e9chantillons solides ou des liquides tr\u00e8s visqueux. <\/strong>Sa limite de d\u00e9tection est de 10 mg\/kg. Il est sp\u00e9cialis\u00e9 dans la d\u00e9termination de l\u2019azote et du carbone par la m\u00e9thode Dumas. Cette m\u00e9thode \u00e9limine les gaz interf\u00e9rents lors de la phase de r\u00e9duction et d\u00e9tecte les gaz cibles \u00e0 l\u2019aide d\u2019un d\u00e9tecteur \u00e0 conductivit\u00e9 thermique. Le UNICUBE trace combine ainsi les avantages d\u2019une m\u00e9thode ind\u00e9pendante de la matrice avec une sensibilit\u00e9 \u00e9lev\u00e9e.<\/p>\n

Avec le UNICUBE trace, la digestion de l'\u00e9chantillon se fait par combustion catalytique \u00e0 une temp\u00e9rature de de 950 \u00b0C.<\/strong> Lors de ce processus, les compos\u00e9s d\u2019azote et de carbone pr\u00e9sents dans l\u2019\u00e9chantillon se transforment en un m\u00e9lange d\u2019oxydes et de N\u2082. Les gaz produits traversent ensuite un tube de r\u00e9duction, o\u00f9 les compos\u00e9s de carbone sont convertis en CO\u2082 et ceux d\u2019azote en N\u2082. Une fois l\u2019eau (H\u2082O) et le dioxyde de soufre (SO\u2082) \u00e9limin\u00e9s, le CO\u2082 et le N\u2082 sont quantifi\u00e9s par d\u00e9tection \u00e0 conductivit\u00e9 thermique.<\/p>\n

Le syst\u00e8me est simple d\u2019utilisation et demande peu d\u2019entretien. Son analyse ind\u00e9pendante de la matrice permet l\u2019utilisation d\u2019un \u00e9talonnage standard \u00ab\u202funiversel\u202f\u00bb, adapt\u00e9 \u00e0 tout type d\u2019\u00e9chantillon. La porte frontale de l\u2019analyseur s\u2019ouvre largement, facilitant l\u2019acc\u00e8s pour le remplacement des consommables. Le changement des tubes de combustion et de r\u00e9duction se fait ais\u00e9ment gr\u00e2ce au four coulissant.<\/p>\n

 <\/p>\n

Sp\u00e9cifications de l'analyseur \u00e9l\u00e9mentaire organique :<\/strong><\/h3>\n

Combustion \u00e0 haute temp\u00e9rature :<\/strong>
\nUNICUBE trace assure une digestion quantitative des \u00e9chantillons jusqu\u2019\u00e0 1 200 \u00b0C, avec une garantie de 10 ans sur le four. Il garantit la conversion compl\u00e8te de tous les composants azot\u00e9s en N\u2082. Le syst\u00e8me injecte l\u2019oxyg\u00e8ne directement sur l\u2019\u00e9chantillon, atteignant une concentration \u00e9lev\u00e9e au point de combustion, ce qui r\u00e9duit la consommation de gaz.<\/p>\n

Plage de pes\u00e9e la plus large :<\/strong>
\nLa plage couvre les applications micro (moins de 1 mg) et macro (environ 1 g de sol), selon les besoins, et permet d\u2019analyser jusqu\u2019\u00e0 20 mg de mati\u00e8re organique.<\/p>\n

Plage dynamique la plus \u00e9tendue pour les concentrations et rapports \u00e9l\u00e9mentaires :<\/strong>
\nUNICUBE trace prend en charge des concentrations et des rapports d'\u00e9l\u00e9ments jusqu'\u00e0 50 mg C abs. ou 10 mg N abs. ou 100%, en fonction du mode d'analyse et de la matrice de l'\u00e9chantillon. Le syst\u00e8me offre une limite de d\u00e9tection de 10 ppm pour N et C.<\/p>\n

Calibration multipoint :<\/strong>
\nOffre une stabilit\u00e9 ind\u00e9pendante de la matrice pendant plusieurs mois.<\/p>\n

Commande via PC :<\/strong>
\nLa num\u00e9risation compl\u00e8te de l\u2019instrument permet une utilisation \u00e0 distance depuis un PC standard, garantissant des r\u00e9sultats parfaits, m\u00eame avec des matrices inconnues ou tr\u00e8s variables. Il dispose d\u2019un passeur d\u2019\u00e9chantillons int\u00e9gr\u00e9 pouvant contenir 120 \u00e9chantillons, avec conformit\u00e9 21 CFR part 11 disponible.<\/p>\n

Un instrument simple pour toutes les applications :<\/strong>
\nUNICUBE trace \u00e9limine le besoin de catalyseurs sp\u00e9ciaux co\u00fbteux, simplifie le retrait des cendres du tube de combustion et offre des composants durables pour un faible co\u00fbt de possession.<\/p>\n

Propre, s\u00fbr et rapide :<\/strong>
\nChaque analyse dure seulement quelques minutes et utilise l\u2019h\u00e9lium comme gaz vecteur, sans produits chimiques agressifs ou toxiques.<\/p>\n

Installation facile :<\/strong>
\nUNICUBE trace n\u00e9cessite seulement 48 x 55 cm d\u2019espace sur la paillasse, fonctionne avec une alimentation unique (230, 110 ou 100 V) et deux gaz, et offre de longues p\u00e9riodes sans maintenance.<\/p>","protected":false},"excerpt":{"rendered":"

D\u00e9termination ind\u00e9pendante de la matrice du C et du N \u00e0 des niveaux traces dans les solides et les liquides<\/p>","protected":false},"featured_media":1275,"template":"","brands":[133],"applications":[215,231,233],"markets":[14,22,25,411,17,16,15,41,30,40,23],"class_list":["post-1063","instruments","type-instruments","status-publish","has-post-thumbnail","hentry","brands-elementar","applications-analysis","applications-elemental-analysis","applications-organic-elemental-analyzers","markets-chemical-industry","markets-chemicals-chemicals","markets-consumer-products","markets-energy-and-bio-fuels","markets-energy-and-sustainability","markets-environmental","markets-food-and-beverage","markets-hydrogen-utilities","markets-oils-and-fats","markets-refinery","markets-specialty-chemicals"],"acf":[],"yoast_head":"\nUNICUBE trace | Organic Elemental Analyzer | SciSPX Analysis simplified<\/title>\n<meta name=\"description\" content=\"Organic elemental analyzer that measures 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