A method for the determination of carbon monoxide, carbon dioxide, sulphur dioxide, carbonyl sulphide, oxygen and nitrogen in furnace gas atmospheres by gas chromatography
A method is described for the routine analysis of mixtures containing any of the named gases by using a dual-column system and a katharometer detector. The method is suitable for 1-ml gas samples that may contain from 100 per cent. of one of the gases down to at least 7 × 10–2 per cent. of any of them, provided that the ratio of carbon monoxide to carbon dioxide or nitrogen to carbon monoxide does not exceed 50: 1.