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Dissipation Pattern of Fungicides Boscalid and Pyraclostrobin in Jujube

대추 중 살균제 boscalid와 pyraclostrobin의 잔류 소실 특성

  • 조형욱 ((재)한국건설생활환경시험연구원 바이오융합연구소 환경독성센터) ;
  • 손상현 ((주)크로엔 잔류분석팀) ;
  • 김경진 ((주)크로엔 잔류분석팀) ;
  • 황기준 ((주)크로엔 잔류분석팀) ;
  • 조범행 ((주)크로엔 잔류분석팀) ;
  • 길석주 ((주)크로엔 잔류분석팀) ;
  • 권찬혁 (식품의약품안전처 축산물기준과) ;
  • 문준관 (한경대학교 식물생명환경과학과)
  • Received : 2017.02.23
  • Accepted : 2017.03.09
  • Published : 2017.03.31

Abstract

Dissipation pattern and biological half-lives of fungicides boscalid and pyraclostrobin were calculated on jujube. The pesticides were sprayed on jujube in two different field at the standard rate, respectively. The raw agricultural commodities were harvested at 0 (2 hr), 1, 3, 5, 7, 10 and 14 days after treatment, and analyzed by HPLC/DAD. The method limit of quantification (MLOQ) was $0.02mg\;kg^{-1}$ for boscalid and pyraclostrobin. The recovery ranged 101.8~109.3% with below 5% of CV (Coefficient of variation) for boscalid and 104.2~115.4% with below 5% of CV for pyraclostrobin. An average initial deposit at field 1 and field 2 samples were observed 0.40 and $0.48mg\;kg^{-1}$ for boscalid and, 0.76 and $0.57mg\;kg^{-1}$ for pyraclostrobin, respectively. The biological half-lives of field 1 and field 2 were 11.0 and 13.2 day for boscalid, and 6.1 and 12.7 days for pyraclostrobin.

Keywords

biological half-life;boscalid;jujube;pyraclostrobin

Acknowledgement

Supported by : 식품의약품안전처

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