Establishment of Pre-Harvest Residue Limit (PHRL) of Insecticide Bifenthrin during Cultivation of Grape

포도의 재배기간 중 살충제 bifenthrin의 생산단계 농약잔류허용기준의 설정

  • Kim, Sung-Woo (Department of Agricultural Biotechnology, Seoul National University) ;
  • Lee, Eun-Mi (Department of Agricultural Biotechnology, Seoul National University) ;
  • Lin, Yang (Qingdao Agricultural University) ;
  • Park, Hee-Won (Department of Agricultural Biotechnology, Seoul National University) ;
  • Lee, Hye-Ri (Department of Agricultural Biotechnology, Seoul National University) ;
  • Riu, Myoung-Joo (Department of Agricultural Biotechnology, Seoul National University) ;
  • Na, Ye-Rim (Department of Agricultural Biotechnology, Seoul National University) ;
  • Noh, Jae-Eok (National Agricultural Products Quality Management Service Experiment Research Institute) ;
  • Keum, Young-Soo (Department of Agricultural Biotechnology, Seoul National University) ;
  • Song, Hyuk-Hwan (Department of Agricultural Biotechnology, Seoul National University) ;
  • Kim, Jeong-Han (Department of Agricultural Biotechnology, Seoul National University)
  • 김성우 (서울대학교 농생명공학부) ;
  • 이은미 (서울대학교 농생명공학부) ;
  • ;
  • 박희원 (서울대학교 농생명공학부) ;
  • 이혜리 (서울대학교 농생명공학부) ;
  • 류명주 (서울대학교 농생명공학부) ;
  • 나예림 (서울대학교 농생명공학부) ;
  • 노재억 (국립농산물품질관리원) ;
  • 금영수 (서울대학교 농생명공학부) ;
  • 송혁환 (서울대학교 농생명공학부) ;
  • 김정한 (서울대학교 농생명공학부)
  • Published : 2009.12.31

Abstract

Pre-Harvest Residue Limit (PHRL) of bifenthrin during cultivation of grape was established by utilizing the dissipation curve and biological half-life of bifenthrin calculated from the analysis of 0, 1, 2, 3, 5, 7, 10, 15 days after treatment of bifenthrin. Grape sample was extracted and partitioned with acetonitrile and dichloromethane, respectively, and bifenthrin was determined with GC/ECD. Limit of quantitation (LOQ) of bifenthrin was 0.01 ng. Recoveries at two fortification levels of 0.1 and $0.5\;mg\;kg^{-1}$ were $104.08\;{\pm}\;1.24$ and $92.25\;{\pm}\;3.13%$, respectively. The biological half-lives of bifenthrin were about 21 days at standard application rate, while, 23 days at double application rate. Dissipation of bifenthrin on grape was not influenced by growth dilution effect. The PHRLs of bifenthrin were recommended as 0.60 and $0.55\;mg\;kg^{-1}$ for 10 and 5 days before harvest, respectively.

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