Quantitative solid phase microextraction - Gas chromatography mass spectrometry analysis of the pesticides lindane, heptachlor and two heptachlor transformation products in groundwater
Citation:
McManus, S-L., Coxon, C.E., Richards, K.G. & Danaher, M., Quantitative solid phase microextraction - Gas chromatography mass spectrometry analysis of the pesticides lindane, heptachlor and two heptachlor transformation products in groundwater, Journal of Chromatography A, 1284, 2013, 1 - 7Abstract:
This paper describes the development and validation of a method for the determination of lindane, heptachlor
and two heptachlor transformation products (exo- and endo-heptachlor epoxide) in groundwater.
Samples were extracted using a simple solid phase microextraction (SPME) method with a polyacrylate
fibre prior to detection by gas chromatography mass spectrometry in electron impact ionisation mode
(GC?EI-MS). The linearity of the method ranged from 0.015 to 5.0 ug L?1, with correlation coefficients
greater than 0.99. Recoveries ranged from 96 to 101% at several fortification levels with all coefficients
of variation (CV%) less than 10.5%. The method was validated to the permitted limits laid down in the
European Union drinking water directive (98/83/EC). The limit of quantitation (LOQ) was 0.015 ug L?1
in groundwater samples. Samples had to be analysed within 24 h of collection otherwise degradation
occurred and disposable SPME polyacrylate fibres lasted up to 51 injections. Both endo-heptachlor epoxide
and lindane were detected in groundwater samples with concentrations ranging between 0.033 and
0.048 ug L?1.
Sponsor
Grant Number
Department of Agriculture, Fisheries and Food (DAFF)
RSF 07 544
Author's Homepage:
http://people.tcd.ie/cecoxonDescription:
PUBLISHED
Author: COXON, CATHERINE ELIZABETH
Sponsor:
Department of Agriculture, Fisheries and Food (DAFF)Type of material:
Journal ArticleCollections
Series/Report no:
Journal of Chromatography A1284
Availability:
Full text availableKeywords:
pesticides, SPME, GC-MS, lindane, heptachlorMetadata
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