CHNS/O elemental analysis, determines the percentage of Carbon (C), Hydrogen (H), Nitrogen (N), Sulfur (S) and Oxygen (O) present in a sample. The technique is reliable and cost-effective to assess the purity and chemical composition of compounds. It can be used on a wide range of different sample types including solid, liquid, volatile and viscous substances. It helps the analysts to determine the structure of sample substance by knowing the composition of the organic elements. The chemical characterization of organic compounds is useful in research as well as for quality control (QC).

Elemental analysis is a highly reliable analytical technique that is used in a wide range of applications across many different industries such as:
• Pharmaceuticals industry
• Material characterization industry
• Environmental industry
• Agricultural industry
• Food and animal feed industry
• Energy/ petrochemicals industry

CHNS/O elemental analysis is based on the combustion of the sample. Upon combustion, the sample generates uniform compound gases of the elements C, H, N and S. These combustion products are measured using gas chromatography and thus the ratio of the elements in the original sample is determined. C, H, N and S can all be determined simultaneously whereas O by pyrolysis.