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대추 중 살균제 boscalid와 pyraclostrobin의 잔류 소실 특성
조형욱(Hyeong-Wook Jo),손상현(Sang-Hyun Sohn),김경진(Kyoung-Jin Kim),황기준(Gi-Jun Hwang),조범행(Beom-Haeng Jo),길석주(Seok-Ju Gil),권찬혁(Chan-Hyeok Kwon),문준관(Joon-Kwan Moon) 한국농약과학회 2017 농약과학회지 Vol.21 No.1
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 0.02 mg kg<SUP>−1</SUP> 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 0.48 mg kg<SUP>−1</SUP> for boscalid and, 0.76 and 0.57 mg 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.