Abstract
A sensitive matrix solid-phase dispersion (MSPD)/gas chromatography-electron capture detector (GC-ECD) method was developed to determine cypermethrin residues in three tissues (muscle, liver, and gill) of crucian carp. Cypermethrin was simultaneously extracted by MSPD and determined by GC-ECD. The main parameters affecting extraction yield and selectivity, such as the type of solid adsorbent material, choice of elution solvents and their volume, were investigated to obtain interference-free extracts and quantitative cypermethrin recovery. Fortified recoveries in muscle, liver, and gill samples ranged from 84.9% to 106.1%, and relative standard deviations were <8% with fortification levels of 0.05–1 mg kg−1. Detection limits were 1.4–2.1 μg kg−1, and quantitation limits were 5.8–7.8 μg kg−1. The proposed method was successfully applied to determination of cypermethrin in fish tissue samples.
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Acknowledgments
This study was supported by the Natural Science Foundation of Hubei Province of China (Grant Nos. 2006ABA165, 2009CDB410).
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Zhao, D., Liu, X., Shi, W. et al. Determination of Cypermethrin Residues in Crucian Carp Tissues by MSPD/GC-ECD. Chromatographia 73, 1021–1025 (2011). https://doi.org/10.1007/s10337-011-1921-x
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DOI: https://doi.org/10.1007/s10337-011-1921-x