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VELPcatalyst with inert layer, 36 g

https://www.velp.com/en-ww/velpcatalyst-with-inert-layer-36g.aspx Analytical Instruments > Consumables > Elemental Analyzers > VELPcatalyst with inert layer, 36 g VELPcatalyst with inert layer, 36 g Formulation of high efficient catalyst that accelerates the combustion ensuring accuracy and precision. Velpcatalyst with inert layer, 36 g A00000320 VELPCatalyst with inert layer consists is a formulation of high [...]

Metal reactor tube

https://www.velp.com/en-ww/metallic-reactor-tube.aspxMetal tube is reusable after cleaning, for Combustion. Metal reactor tube A00000321 How to prepare the combustion Reactor tube Insert the bottom part of the quartz tube into the Reactor preparation support Insert the quartz wool from the top of the quartz tube and press down (to approx. 20 mm) using the Reactor tube filling rod Pour the black [...]

Quartz reactor tube

https://www.velp.com/en-ww/quartz-reactor-tube.aspxBest for combustion and reduction. ... Quartz reactor tube A00000162 How to prepare the combustion Reactor tube Insert the bottom part of the quartz tube into the Reactor preparation support Insert the quartz wool from the top of the quartz tube and press down (to approx. 20 mm) using the Reactor tube filling rod Pour the black filling of [...]

Protein Analysis in Food: How to Determine Protein Content Accurately

https://www.velp.com/en-ww/protein-analysis-in-food-how-to-determine-protein-content-accurately.aspxDumas Method : A combustion-based method that provides rapid and automated protein determination. ... It involves three main steps: Digestion: The food sample is digested with concentrated sulfuric acid and a catalyst , converting organic nitrogen into ammonium sulfate. ... Dumas Method: Fast and Automated Protein Determination The Dumas method , also [...]

SAVE TIME WITH VELP CONSUMABLES FOR ELEMENTAL ANALYZERS: HOW-TO VIDEOS MAKE IT EVEN EASIER

https://www.velp.com/en-ww/save-time-with-velp-consumables-for-elemental-analyzers-how-to-videos-make-it-even-easier.aspxHow does the Dumas combustion method work? Steps of the Dumas method - VELP NDA Series In a carrier gas flow (helium or argon), the sample contained in the tightly closed tin or silver foils is conveyed to the furnace with the combustion reactor where the combustion process, accelerated by catalysts , is performed [...]

VELP Dumas Analyzers, Velp Scientific

https://www.velp.com/en-ww/nitrogen-analyzer-elemental-analysis.aspxIt also does not make use of toxic chemicals or eco-unfriendly catalysts. ... The combustion chamber incorporates both very high temperature and very low temperature catalysts to ensure that all components of the sample are fully combusted . ... The dosing of gases is optimized by the DUMASoft™, in order to achieve [...]

TIPS FOR CHOOSING BETWEEN DUMAS AND KJELDAHL METHOD FOR N/PROTEIN DETERMINATION

https://www.velp.com/en-ww/3-tips-for-choosing-between-dumas-and-kjeldahl-method-for-protein-determination.aspxThe Dumas analytical method (also known as Combustion Method ) is becoming more present in many laboratories as the most suitable for N/protein determination compared to the traditional Kjeldahl analysis . ... Key points of Dumas combustion analysis The Dumas nitrogen determination requires well-homogenized samples, heated in a [...]

VELP NDA 701 - New Opportunities

https://www.velp.com/en-ww/velp-nda-701-new-opportunities.aspx News > Highlights > VELP NDA 701 - New Opportunities VELP NDA 701 - New Opportunities 07/08/2012 VELP Scientifica is constantly offering more and more convenient solutions to simplify our customer's life and meet user's requirements. » NEW Pre-Packed Combustion and Reduction Reactors Normal 0 14 false false false IT X-NONE X-NONE In order to support the successful NDA 701, [...]

DUMAS AND KJELDAHL METHOD COMPARISON: PROTEIN DETERMINATION IN FEED

https://www.velp.com/en-ww/dumas-and-kjeldahl-method-comparison-protein-determination-in-feed.aspxThese are Kjeldahl wet chemical method and Dumas high-temperature combustion method . ... However, the Kjeldahl method uses concentrated sulfuric acid and a catalyst for the digestion of the sample.