Our three CHNS/O elemental analysers routinely determine carbon, hydrogen, nitrogen, oxygen and sulphur in a wide range of organic and inorganic materials. OEA Labs analyse these elements from high percentages down to less than 0.01% on solid, liquid or even gaseous samples. We also determine total organic carbon (TOC), total inorganic carbon (TIC) and protein.

Elemental analysis (also known as elemental microanalysis) is a reliable and cost-effective technique used to assess the purity and chemical composition of research compounds or to provide information of the composition of materials.

In percentage elemental analysis (EA) of CHNSO, milligram amounts of samples are combusted or pyrolysed at high temperature in a helium carrier gas. After suitable preparation the measurable gases (CO₂, H₂O, N₂, SO₂, or CO) are separated on a chromatography column. The gases are passed in turn through a thermal conductivity detector (TCD) where the gases are quantified against know reference standards.

Links to Elemental Analysis CHNSO services:

• Introduction
• CHN
• CHNS
• NC
• N
• NCS
• S
• O
• TOC/TIC
• Sample Preparation for % CHNSO Elemental Analysis

 

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