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http://dx.doi.org/10.5338/KJEA.2012.31.1.45

Establishment of Pre-Harvest Residue Limit of Fungicides Pyrimethanil and Trifloxystrobin during Cultivation of Persimmon  

Lee, Dong-Yeol (Division of Applied Life Science (BK21 Program) & Institute of Agriculture and Life Science, Gyeongsang National University)
Kim, Yeong-Jin (Division of Applied Life Science (BK21 Program) & Institute of Agriculture and Life Science, Gyeongsang National University)
Lee, So-Jung (Division of Applied Life Science (BK21 Program) & Institute of Agriculture and Life Science, Gyeongsang National University)
Cho, Kyu-Song (Division of Applied Life Science (BK21 Program) & Institute of Agriculture and Life Science, Gyeongsang National University)
Kim, Sang-Gon (Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University)
Park, Min-Ho (Gyeongnam Provincial Office, National Agricultural Products Quality Management Service)
Kang, Kyu-Young (Division of Applied Life Science (BK21 Program) & Institute of Agriculture and Life Science, Gyeongsang National University)
Publication Information
Korean Journal of Environmental Agriculture / v.31, no.1, 2012 , pp. 45-51 More about this Journal
Abstract
BACKGROUND: This study was carried out to establish pre-harvest residue limit of fungicides pyrimethanil and trifloxystrobin in persimmon, based on dissipation and biological half-lives of two fungicides residue. METHODS AND RESULTS: Both pyrimethanil and trifloxystrobin were extracted with acetonitrile, clean-up with $NH_2$ SPE cartridge and residue were analyzed by HPLC/DAD. Limit of Detection was 0.01 mg/kg. Average recovery were $81{\pm}1.62%$, $98{\pm}1.58%$ of pyrimethanil, and $91{\pm}2.94%$, $98{\pm}1.25%$ of trifloxystrobin at fortification levels at 0.1 and 0.5 mg/kg, respectively. CONCLUSION: The biological half-lives of pyrimethanil were 15.6 and 11.6 days at sprayed with recommended and double dosage, respectively. The biological half-lives of trifloxystrobin were 10.4 and 10.3 days at sprayed with recommended and double dosage, respectively. The pre-harvest residue limit of pyrimethanil and trifloxystrobin were recommended as 2.69 and 0.83 mg/kg for 10 days before harvest, respectively.
Keywords
Biological half-lives; Persimmon; Pre-Harvest Pyrimethanil; Residue Limit; Trifloxystrobin;
Citations & Related Records
Times Cited By KSCI : 9  (Citation Analysis)
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