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Interference from elemental sulphur in the determination of organotins by gas chromatography with flame photometric detection

✍ Scribed by Iain L. Marr; Catherine White; Dörte Ristau; James L. Wardell; James Lomax

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
146 KB
Volume
11
Category
Article
ISSN
0268-2605

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✦ Synopsis

Elemental sulphur, a common constituent of marine sediments, has been shown to give dialkyl sulphides with the Grignard reagents commonly used to derivatize alkyltin species before their determination by gas chromatography with flame photometric detection (GC-FPD). Further, it has been demonstrated that even with the red filter for 610 nm (normally used for organotin compounds) fitted to the detector, sulphur compounds do give rise to an emission signal, which may be mistaken for tin emission from a pentylated or propylated alkyltin compound, as the respective retention times are in some cases quite close.

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