Publication Abstract
- Title
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Determination of the antifouling agent zinc pyrithione in water samples by copper chelate formation and high performance liquid chromatography
- Publication Abstract
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Determination of the antifouling agentzinc pyrithione in water samples by copper chelate formation and high performance liquid chromatography
K. Thomas
Zinc pyrithione has recentlybeen incorporated into antifouling paints as a booster biocide, which is slowly releasedthe water as the paint ages. In order to determine concentrations of zinc pyrithione (ZPT)in aqueous samples, a liquid chromatographic method has been developed. Since ZPTinteracts with certain reversed-phase packing materials or stainless steel components ofthe HPLC system, the method uses transchelation of the ZPT into the stable copper(II)complex before analysis by liquid chromatography coupled to atmospheric pressure chemicalionisation mass spectrometry. ZPT extracted as copper pyrithione using dichloromethanewith adequate recovery (77% ±17%, n = 6) from 2-l water samples. The limit ofdetection was calculated to be 20 ng/ l, using selected ion monitoring. The analysis ofsamples collected various UK marinas showed no detectable concentrations to be present,whilst a laboratory-based study confirmed that this probably due to the rapidphotodegradation of ZPT in seawater.
Reference:
K. Thomas (1999) Determination of the antifouling agent zinc pyrithione in water samplesby copper chelate formation and high performance liquid chromatography. Journal ofChromatography A, 833: 105-109.
- Publication Internet Address of the Data
- Publication Authors
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K. Thomas*
- Publication Date
- January 1999
- Publication Reference
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Journal of Chromatography A, 833: 105-109
- Publication DOI: https://doi.org/
