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EMA 502 Elemental Analyzer CHNS-O

https://www.velp.com/en-ww/ema-502-elemental-analyzer-chns-o.aspx EMA 502 Elemental Analyzer working principle EMA 502 - CHNS Flowpath The CHNS analysis starts with the combustion of the sample inside the VELP combustion furnace at a temperature higher than 1000°C to obtain elemental compounds. ... When analyzing Oxygen , the sample undergoes pyrolysis inside the furnace and then passes through a chemical trap [...]

NDA 702 Dumas Nitrogen Analyzer

https://www.velp.com/en-ww/nda-702-dual-carrier-gas-dumas-nitrogen-analyzer.aspx NDA 702 Nitrogen Analyzer Working Principle The Dumas method starts with the combustion of the sample which takes place inside the VELP combustion furnace (CF) at a temperature higher than 1000°C to obtain elemental compounds.... Between the two traps, the flow of gases passes through the reduction furnace (RF) where NO X compounds are [...]

CN 802 Carbon Nitrogen Elemental Analyzer

https://www.velp.com/en-ww/cn-802-carbon-nitrogen-analyzer.aspx Laboratories have the option to select between Helium and Argon as the carrier gas . ... The combination of high temperature and the exclusive Vcopper TM  reduces nitrogen dioxide to molecular nitrogen inside the reduction furnace. ... Run a comprehensive Leak Test either across the entire circuit or [...]

10-Year Warranty for the EMA 502 CHNS/O Analyzer: Long-Term Reliability, Guaranteed!

https://www.velp.com/en-ww/10-year-warranty-for-the-ema-502-chnso-analyzer-long-term-reliability-guaranteed.aspxWe are excited to announce that the EMA 502 CHNS/O Elemental Analyzer now includes a 10-year warranty on two critical components: the high-temperature combustion furnace and the thermal conductivity detector ( TCD ). This milestone underscores our confidence in the durability and robustness of our technology, ensuring peace of mind for laboratories [...]

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 . ... For this reason, the Kjeldahl method took the lead and became the most popular method for Nitrogen/protein determination , and [...]

THE CASE OF N/PROTEIN DETERMINATION IN FISHMEAL: DUMAS AND KJELDAHL METHOD COMPARISON

https://www.velp.com/en-ww/the-case-of-nprotein-determination-in-fishmeal-dumas-and-kjeldahl-method-comparison.aspx As stringent standards started being applied in the 1990s with regards to the use of harmful chemicals, many laboratories evaluated the Dumas method as an alternative. ... The analysis is completed in few minutes, the sample is burned in a combustion furnace and elemental compounds are obtained. ... Proficiency Testing Programs organized by [...]

TOC (TOTAL ORGANIC CARBON) DETERMINATION IN THE ENVIRONMENTAL SECTOR: BEST PRACTICES FOR ACCURATE ANALYSES

https://www.velp.com/en-ww/total-organic-carbon-determination-in-the-environmental-sector-an-essential-analysis-for-the-preservation-of-natural-resources.aspxThe VELP CN 802 working principle The elemental analysis starts with a combustion furnace (CF) to burn the sample. ... Between the two, the elemental substances passed through a reduction furnace (RF). ... The CN 802 is powered by the CNSoft TM software and produces unsupervised results for: Total Carbon - TC Total Organic and [...]

CHNS-O DETERMINATION IN RUBBER SAMPLES FOR MATERIAL CHARACTERIZATION

https://www.velp.com/en-ww/chns-o-determination-in-plastic-samples-for-material-characterization.aspxReliable determination of Carbon, Hydrogen, Nitrogen, Sulfur and Oxygen with EMA 502 Elemental Analyzer EMA 502 - CHNS Flowpath The CHNS analysis starts with the combustion of the sample inside the VELP combustion furnace at a temperature higher than 1000°C to obtain elemental compounds. ... The EMA 502 software can be upgraded with the optional 21 [...]