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Residual Characteristics of Bistrifluron and Fluopicolide in Korean Cabbage for Establishing Pre-Harvest Residue Limit

생산단계 잔류허용기준 설정을 위한 엇갈이배추 중 bistrifluron과 fluopicolide의 잔류 특성 연구

Lee, Dong Yeol;Jeong, Dong Kyu;Choi, Geun-Hyoung;Lee, Deuk-Yeong;Kang, Kyu Young;Kim, Jin Hyo
이동열;정동규;최근형;이득영;강규영;김진효

  • Received : 2015.09.23
  • Accepted : 2015.11.06
  • Published : 2015.12.31

Abstract

This study investigated residual characteristics of bistrifluron and fluopicolide in Korean cabbage, and suggested the pre-harvest residue limits (PHRLs) based on their dissipation patterns and biological half-lives. The pesticides were sprayed on Korean cabbage in two different region under greenhouse conditions at the recommended dose, respectively. The samples for residue analysis were harvested at 0 (2 hr), 1, 2, 4, 6, 8 and 10 days after treatment, and analyzed by HPLC after clean-up with Florisil SPE. The limit of quantification (LOQ) was $0.03mg\;kg^{-1}$ for bistrifluron and fluopicolide, and the recoveries ranged from 87.2-110.6% with below 5% of RSD. The biological half-lives of field I and field II were 3.9 and 4.2 days for bistrifluron and 4.9 and 4.2 days for fluopicolide, respectively. The PHRL of bistrifluron and fluopicolide were recommended as 3.83 and $3.23mg\;kg^{-1}$ for 10 days before harvest, respectively.

Keywords

bistrifluron;fluopicolide;Korean cabbage;biological half-life;pre-harvest residue limit

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  2. Pre-Harvest Residual Characteristics of Cyenopyrafen and Fluopicolide on Field-Grown Red Pepper vol.21, pp.2, 2017, https://doi.org/10.7585/kjps.2017.21.2.123
  3. Residual Characteristics of Pesticides Used for Powdery Mildew Control on Greenhouse Strawberry vol.52, pp.2, 2018, https://doi.org/10.14397/jals.2018.52.2.99

Acknowledgement

Supported by : 식품의약품안전처