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Comparison of Derivatization Methods for the Determination of Butyl- and Phenyl-tin Compounds in Mussels by Gas Chromatography

✍ Scribed by M. B. de la Calle-Guntiñas; R. Scerbo; S. Chiavarini; Ph. Quevauviller; R. Morabito

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 432 KB
Volume: 11
Category: Article
ISSN: 0268-2605
DOI: 10.1002/(sici)1099-0739(199708)11:8<693::aid-aoc621>3.0.co;2-x

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✦ Synopsis

Two different derivatization methods, alkylation with Grignard reagents, and ethylation with sodium tetraethylborate, were compared for the determination of organotin compounds, viz. tributyltin, dibutyltin, monobutyltin, triphenyltin, diphenyltin and monophenyltin, in mussel samples. Temperature, reaction time and concentration of Grignard reagents were optimized in the former method; in the latter the effect of pH, concentration of sodium tetraethylborate and reaction time were studied. In the derivatization with Grignard reagents hexyl, pentyl, propyl, ethyl and methyl were used as alkyl Grignard groups. A critical evaluation of the different derivatization methods is presented.

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