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  • Title: Rapid determination of butyltin species in water samples by multicapillary gas chromatography with atomic emission detection following headspace solid-phase microextraction.
    Author: Botana JC, Pereiro IR, Torrijos RC.
    Journal: J Chromatogr A; 2002 Jul 19; 963(1-2):195-203. PubMed ID: 12187971.
    Abstract:
    A procedure for the rapid determination of mono-, di- and tributyltin in water samples is described. The analytes are simultaneously ethylated and concentrated on a solid-phase microextraction fibre placed in the headspace over the sample for 2 min. The ethylated species are then separated and selectively quantified in only 90 s using a multicapillary gas chromatography column combined with atomic emission detection. The influence of blank signals and sampling conditions on the sensitivity of the method is described. Detection limits of 1-5 ng/l and relative standard deviations of 6-10% at concentrations of 20 ng/l were obtained.
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