期刊
MARINE POLLUTION BULLETIN
卷 63, 期 5-12, 页码 102-107出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2011.03.038
关键词
Hollow fiber liquid-phase microextraction (HF-LPME); Organophosphorus pesticides; Gas chromatography-mass spectrometry
资金
- National Natural Science Foundation of China [20877103, 21077135]
- Agilent Technologies Foundation
- State Key Laboratory of Organic Geochemistry, Institute of Geochemistry, CAS
Hollow fiber liquid-phase microextraction (HF-LPME) technique was used as a clean-up procedure for the determination of organophosphorus pesticides (OPPs) in fish tissue. In this study, eight OPPs were first extracted with acetone from fish sample, the organic extract after rotatory evaporation was then redissolved with water-methanol (95:5, v/v) solution, followed by polyvinylidene difluoride (PVDF) HF-LPME. Experimental HF-LPME and other sample preparation conditions were carefully investigated and optimized. Under the optimum conditions, good linearity were observed in the range of 20-500 ng/g, limits of detections (LODs) were in the range of 2.1-4.5 ng/g. The repeatability and recovery of the method also showed satisfactory results. Compared with traditional sample preparation method for the determination of OPPs in fish tissue, the method developed in this study eliminated the solid phase extraction (SPE) step, simplified the sample preparation procedure and lowered the cost of analysis. (C) 2011 Elsevier Ltd. All rights reserved.
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