We offer CHN elemental analysis (carbon, hydrogen, and nitrogen) in organic materials using an Exeter Analytical CE440.
Samples are combusted at high temperatures in a stream of oxygen, and the instrument measures the products of combustion for carbon, hydrogen, and nitrogen in a single analysis. Â This instrument offers unsurpassed precision and accuracy. Â The absolute error in the measurement is 0.3% by weight. Â Detection limits are generally 0.01-0.1%.
Sample sizes are typically 1-10 mg weighed accurately on our new microbalance, a Mettler MX5.
Mettler MX5 Microbalance

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Other Elements This system can also be used for sulfur analysis, but we do not currently offer this service.  Instead sulfur is measured separately using oxygen bomb combustion followed by ion chromatography.  This approach is  appropriate for Cl, Br, S, and P in the same analysis.  Trace metals are analyzed by ICPMS, ICPOES, GFAA, and XRF. Â
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Industry Sectors 
