Home > Technical Articles > CHN
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WCAS now offers 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. This instrument offers unsurpassed precision and accuracy. The absolute error in the measurement is 0.3% by weight. Detection limits are generally 0.01-0.1%. Sample sizes are typically 1-10 mg weighed accurately on our new microbalance, a Mettler MX5 |
Other ElementsThis 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. |
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9240
Santa Fe Springs Rd |
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562.948.2225 Fax 562.948.5850 |
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