CHNS Analysis

CHNS analyzer can measure the concentrations of carbon, hydrogen, nitrogen and sulfur in petroleum products, biofuels and more.

  • Description
Testing Method CHNS Analysis
Description A CHNS analyzer is a scientific instrument which can determine the elemental concentrations in in petroleum products, biofuels and more. It is used to measure carbon, hydrogen, nitrogen and sulfur. 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 heterogeneity.


This instrument uses combustion to oxidize the sample into simple compounds which are then detected with thermal conductivity detection or infrared spectroscopy.

More Information Wikipedia: CHN Analyzer