Multiresidue Analysis of 240 Pesticides in Apple and Lettuce by QuEChERS Sample Preparation and HPLC-MS/MS Analysis

QuEChERS 전처리법과 HPLC-MS/MS 기기분석을 이용한 사과와 상추 중 240종 농약의 동시분석

  • Kwon, Hye-Young (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Kim, Chan-Sub (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Park, Byung-Jun (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Jin, Yong-Duk (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Son, Kyung-Ae (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Hong, Su-Myeong (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Lee, Je-Bong (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Im, Geon-Jae (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration)
  • 권혜영 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 김찬섭 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 박병준 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 진용덕 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 손경애 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 홍수명 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 이제봉 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 임건재 (농촌진흥청 국립농업과학원 농산물안전성부)
  • Received : 2011.09.19
  • Accepted : 2011.11.06
  • Published : 2011.12.31

Abstract

The study tested QuEChERS (quick, easy, cheap, effective, rugged and safe) sample preparation and HPLC-MS/ MS analysis for measurement of pesticide residues in fruit and vegetable. 240 kinds of pesticides spiked at three levels of 90, 45, 9 ng/g in lettuce and apple. For QuEChERS sample preparation, graphitized carbon black (GCB) was used for only lettuce in dispersive-SPE as absorbent. Matrix-matched standard calibration was used for quantitative analysis of HPLC-MS/MS. 218 pesticides (91%) in apple and 207 pesticides (86%) in lettuce showed recoveries in the range of 70~120% with $RSD{\leq}20%$. The lowest calibrated level (LCL) were 4.5 ng/g for 192 pesticides, 9 ng/g for 42 pesticides, 45 ng/g for 3 pesticides and 3 pesticides were not detected at all concentration levels. The results showed that the QuEChERS sample preparation and HPLC-MS/MS analysis can be applied to multi-residue analysis of pesticides in vegetables and fruits.

QuEChERS(quick, easy, cheap, effective, rugged and safe) 전처리법과 HPLC-MS/MS의 기기분석조건을 확립하고 분석법을 검증하였다. 상추와 사과에 첨가농도 90, 45, 9 ng/g로 농약을 처리하고 상추의 경우 GCB를 첨가하고 사과의 경우 GCB를 첨가하지 않고 QuEChERS법으로 전처리 한 후 HPLC-MS/MS로 분석하여 matrix matched calibration을 이용하여 회수율을 조사한 결과, 첨가된 농약 240성분 중 회수율이 70~120%이고 RSD가 20% 이하인 농약은 사과의 경우 218성분(91%), 상추의 경우 207성분(86%)이었다. 또한 lowest calibrated level(LCL)은 192성분이 4.5 ng/g, 42성분이 9 ng/g, 3성분이 45 ng/g이었으며 3성분은 검출이 불가능하였다. 따라서 본 시험에서 사용된 QuEChERS 전치리법과 HPLCMS/MS 분석조건을 이용하여 국내 등록 농약에 대한 야채와 과일중의 잔류농약 분석이 가능할 것으로 판단되었다.

Keywords

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