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Multi-residue method for the determination of 16 recently used pesticides from various chemical groups in aqueous samples by using DI - SPME coupled with GC-MS
Abstract
A simple and solvent-free multi-residue method has been optimized to determine 16 currently used pesticides from different chemical groups in aqueous samples. The extraction of analytes was carried out with direct immersion solid-phase microextraction (DI-SPME) and for the identification and quantitative determination gas chromatography coupled with mass spectrometry (GC-MS) was applied. Two commonly used adsorbent coatings have been applied and compared: 100 µm of polydimethylsiloxane (PDMS) and 85 µm of polyacrylate (PA). The method development parameters of DI-SPME, analyte desorption and GC-MS analysis have been outlined along with the final experimental conditions. When the optimum extraction conditions were applied (extraction time 60 min, 10 % (w/v) NaCl solution, 45 ºC) the limits of detection (LODs) were in the range of 0.015 - 0.13 µg L-1 and the relative standard deviations (RSDs) were between 1.9 - 9.6 %. The developed analytical method was successfully applied to the analysis of natural water samples from the following sources: river, sea, canal and rain.
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
TALANTA.The International Journal of Pure and Applied Analytical Chemistry
no. 107,
pages 1 - 10,
ISSN: 0039-9140 - Language:
- English
- Publication year:
- 2013
- Bibliographic description:
- Tankiewicz M., Morrison C., Biziuk M.: Multi-residue method for the determination of 16 recently used pesticides from various chemical groups in aqueous samples by using DI - SPME coupled with GC-MS// TALANTA. -Vol. 107, (2013), s.1-10
- Verified by:
- Gdańsk University of Technology
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