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- E-ISSN 2288-8985
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The Extraction and Derivatization of Organotins in Water Sample by Gas Chromatograph/Mass Spectrometer
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2000, v.13 no.5, pp.636-645
Hong,
J., Lee,
K., Pyo,
H. S., Park,
S., &
Lee,
W.
(2000). The Extraction and Derivatization of Organotins in Water Sample by Gas Chromatograph/Mass Spectrometer. Analytical Science and Technology, 13(5), 636-645.
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Abstract
A method is described for the determination of organotins in water samples by GC/MS. Optimized derivatization methods for ethylation and hydrogenation of organotins were surveyed according to various reaction conditions such as time, pH and concentration of reagents. The organotins were extracted with n-hexane in presence of 0.1% tropolone and hydrogenated with sodium borohydride. Extraction recoveries of organotins with hydrogenation were in the range of 61-112%. After ethylation, organotins in water samples were extracted by liquid-liquid extraction (LLE) and solid-phase extraction (SPE). Using LLE, extraction recoveries were in the range of 74-113%. The recoveries ranged from 61-97% in the case of SPE with styrene-divinylbenzene copolymers. Method detection limits of hydrogenated and ethylated organotins ranged from 0.05 to 0.5 ng/ml and from 0.02 to 0.05 ng/ml, respectively.
- keywords
- organotin, LLE, SPE, derivatizations, GC/MS
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