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http://dx.doi.org/10.5338/KJEA.2002.21.2.090

Efficiency of Eluting Solvents for Solid-Phase Extraction During Multiresidue Analysis of 16 Pesticides in Cucumber  

Tu, Ock-Ju (Seoul Metropolitan Government Research Institute of Public Health and Environment)
Kim, Gyung-Sig (Seoul Metropolitan Government Research Institute of Public Health and Environment)
Jeong, Eui-Geun (Seoul Metropolitan Government Research Institute of Public Health and Environment)
Kim, Jin-Gon (Seoul Metropolitan Government Research Institute of Public Health and Environment)
Kim, Myung-Hee (Seoul Metropolitan Government Research Institute of Public Health and Environment)
Jung, Bo-Kyung (Seoul Metropolitan Government Research Institute of Public Health and Environment)
Publication Information
Korean Journal of Environmental Agriculture / v.21, no.2, 2002 , pp. 90-95 More about this Journal
Abstract
A study was carried out to optimize the cleanup step using a solid-phase extraction (SPE) cartridge, $SupelClean^{TM}$ Florisil, for multiresidue analysis of 16 pesticides in cucumber matrix. Eluting efficiencies of two solvent systems including acetone/n-hexane and ethyl acetate/n-hexane mixtures were critically evaluated by recoveries of target anaytes from the SPE Florisil column. Based on the recovery as a measure of eluting efficiency, an acetone/n-hexane (20/80,v/v) mixture provided more than 80% recovery for 15 pesticides except bifenthrin. In case of ethyl acetate/n-hexane, 14 pesticides showed recoveries higher than 75% while those far alachlor and bifenthrin were less than 30%.
Keywords
pesticide; solid-phase extraction; multiresidue analysis; eluant; cleanup;
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