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Selective Enrichment of Sulfides, Thiols and Methylthiophosphates from Water Samples on Metal-loaded Cation-exchange Materials for Gas Chromatographic Analysis by K. Beiner; P. Popp; R. Wennrich is a Chemistry article available to read on EtoBox.

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The suitability of using metal-loaded sorbents for solid-phase extraction to enrich organic sulfur compounds from water samples was studied. To test the retention behavior of a number of sulfides, thiols and methylthiophosphates, a cation-exchanger was loaded with various metal ions. The elution behavior of sulfur compounds was investigated with different solvents. A combination of Pb2+-modified cation-exchanger as sorbent and CS2 (1%, v/v) in toluene proved to be the most suitable approach for the given problem. Using GC with a pulsed flame photometric detector yielded detection limits of between 0.6 and 2.9 microg/l. The results showed good reproducibility with relative standard deviations of 2-11%.

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Author

K. Beiner; P. Popp; R. Wennrich

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1873-3778)

Published

2002

Language

EN

Field

Chemistry (Physical Sciences)