Gas Chromatography
All applications

Gas Chromatography

Low non-volatile residue levels due to glass distillation make ROMIL‑SpS super purity solvents suitable for simple analysis of pesticide and other extraction residues. The solvent may be concentrated by evaporation and will be free from interfering chromatographic signals with flame ionisation and electron capture detectors.

Test for Pesticide Residue Analysis:
The solvent is evaporated to dryness and the residue dissolved in high purity 2,2,4-trimethylpentane. A gas chromatogram is then run with ECD detection to determine no interfering peaks greater in area than that obtained by 5 ng/LT lindane (in the neat solvent) within the range of retention times from lindane (shortest) to 4,4'-DDT (longest).