In CHN elemental analysis solids are combusted and the resulting oxides of carbon, hydrogen and nitrogen are analysed chromatographically.
How it works
- solid samples are combusted at temperatures exceeding 900ºC with a flow of pure oxygen
- the resulting oxides of carbon (C), hydrogen (H) and nitrogen (N) are analysed chromatographically
Run times can be as little as 10 minutes for C, H and N analysis, and only small sample masses are required (5-20mg).