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Establishment of Pre-Harvest Residue Limit of Fungicides Pyrimethanil and Trifloxystrobin during Cultivation of Persimmon
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 Title & Authors
Establishment of Pre-Harvest Residue Limit of Fungicides Pyrimethanil and Trifloxystrobin during Cultivation of Persimmon
Lee, Dong-Yeol; Kim, Yeong-Jin; Lee, So-Jung; Cho, Kyu-Song; Kim, Sang-Gon; Park, Min-Ho; Kang, Kyu-Young;
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 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 SPE cartridge and residue were analyzed by HPLC/DAD. Limit of Detection was 0.01 mg/kg. Average recovery were , of pyrimethanil, and , 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;
 Language
Korean
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