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KMID : 0385520100230040395
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Analytical Science & Technology
2010 Volume.23 No. 4 p.395 ~ p.404
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Determination of 105 pesticide residues by GC/MS/MS
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Kim Woo-Sung
Lee S.-H.
J. A. Do
Lee Hee-Jung
Lee Ju-Young
Yang S. J.
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Abstract
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A multi-residual method using gas chromatography coupled with mass spectrometry (GC/MS/MS) was developed for the analysis of 105 pesticides. This method was tested on lemons, beans and other vegetables. The pretreatment of these pesticides was performed by liquid-liquid partition followed by cleanup with solid phase extraction cartridge (SPE Florisil), after acetonitrile extraction from matrices and sodium chloride (15 g) addition. The recovery ranged from 71.1% to 126.0% except for azinphosmethyl, famoxadone, fenamidone, flufenoxuron and triadimefon in lemons and from 72.5% to 124.5% in bean. In lemon, the limit of detection (LOD) and limit of quantification (LOQ) were 0.001~150 ng/mL and 0.004~500 ng/mL, respectively.
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KEYWORD
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multi-residual method, GC/MS/MS, limit of detection, limit of quantification
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