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

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)
Publication Information
The Korean Journal of Pesticide Science / v.13, no.4, 2009 , pp. 241-248 More about this Journal
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.
Keywords
bifenthrin; Pre-Harvest Residue Limit (PHRL); biological half-lives;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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