A CHN Analyzer is a scientific instrument which can determine the elemental concentrations in a given sample. It is used to measure carbon, hydrogen, and Nitrogen. Sample sizes are most often just a few milligrams, but may differ depending on system. For some sample matrices larger mass is preferred due to sample heterogenieity.
This instrument uses combustion to oxidize the sample into simple compounds which are then detected with thermal conductivity detection or infrared spectroscopy. Separation of interference is done by chemical reagents.
- ECO Core Analytical Services: Elemental Analysis
- Geostandards and Geological Research
- Luvak Laboratories
|This article about analytical chemistry is a stub. You can help Wikipedia by expanding it.|