Exeter Analytical supplies high-quality copper for the determination of nitrogen/protein in food and agricultural materials using the Dumas method.
The quality of copper used in the reduction process employed by Dumas analysers is known to critically affect the precision of nitrogen/protein determinations, according to the company.
A common manufacturing method of producing copper, for use in nitrogen/protein determinations, is to reduce copper oxide using hydrogen.
A programme of research and development has enabled Exeter Analytical to develop a process for consistently producing high-quality copper with a very high porous active surface area.
In tests, high-quality copper has improved the precision of nitrogen/protein determinations and offered a longer operational life compared to material available from other sources.
The company claims that investment in automating copper production ensures batch-to-batch consistency and enables the reagent to be available at competitive prices.
All Exeter Analytical high-quality copper is packed under argon to ensure a long shelf life.
