DETERMINATION OF SULPHUR AT LOW LEVELS IN STANDARD REFERENCE MATERIALS BY PYROHYDROL YSIS/LON CHROMATOGRAPHY |
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| Authors: | Gwendy E.M. HALL Judy A. VAIVE |
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| Affiliation: | Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario, Canada K1A OE8 |
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| Abstract: | The determination of sulphur in rocks, soils and sediments by pyrohydrolysis/ion chromatography has been modified to reach lower detection limits of the order of 2 μg g−1. Thirty-one standard reference materials containing sulphur at levels ranging from 3 to about 900 μg g−1 have been analysed in triplicate. In general, the comparison of the results with those published is favorable. The method is also applicable to organic-rich samples as demonstrated by the analysis of NBS samples (citrus leaves, tomato leaves, bovine liver). |
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