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Improving detection limits for organotin compounds in several matrix water samples by derivatization-headspace-solid-phase microextraction and GC-MS

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	Segovia Martinez, Laura; Bouzas Blanco, Alberto; Campíns Falcó, Pilar; Seco Torrecillas, Aurora
	This document is a artículoDate2010
	Triethyltin, tributyltin, diphenyltin and triphenyltin were selected as model compounds. The method is based on in situ ethylation and simultaneous headspace-solid-phase microextraction (HS-SPME) and gas chromatographic-mass spectrometry analysis (GC-MS). The extraction procedure was optimized studying some variables such as reaction time, salinity, sample volume and headspace volume. SPME-GC-MS and SPME-GC-FID techniques were compared; quality assurance parameters such as sensitivity, selectivity and precision were established. The proposed procedure showed limits of detection between 0.025 and 1 ng/L. The linearity was in the 0.025-5000 ng/L range. The precision expressed as relative standard deviations (RSD), were below 20%. Real wastewaters and seawaters were analyzed. The method permits controlling legislated annual average values.
	Segovia Martinez, Laura Bouzas Blanco, Alberto Campíns Falcó, Pilar Seco Torrecillas, Aurora 2010 Improving detection limits for organotin compounds in several matrix water samples by derivatization-headspace-solid-phase microextraction and GC-MS Talanta 80 5 1888 1893
	https://doi.org/10.1016/j.talanta.2009.10.039