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논문 기본 정보

자료유형
학술저널
저자정보
Michael Opolot (Kyungpook National University) Sang-Hyeob Lee (Kyungpook National University) Se-Yeon Kwak (Kyungpook National University) Aniruddha Sarker (Kyungpook National University) Sung-Chan Cho (Kyungpook National University) Hyo-Jeong Kim (Kyungpook National University) Hye-Rin Jeong (Kyungpook National University) Jang-Eok Kim (Kyungpook National University)
저널정보
한국농약과학회 농약과학회지 농약과학회지 제22권 제4호
발행연도
2018.12
수록면
316 - 326 (11page)
DOI
10.7585/kjps.2018.22.4.316

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초록· 키워드

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The present greenhouse experiment was carried out to study the residues of sulfoxaflor in spinach and Korean cabbage under different pre-harvest application regimes. After 2 times application of with 1 week interval in that day of harvest (0), 3, 7, 14 and 21 days before harvest, and the residue of pesticides was investigated by LC-MS/MS. Matrix-matched calibration curves for sulfoxaflor in both spinach and Korean cabbage yielded good linearity (R<SUP>2</SUP> ≥ 0.9995). The biological half-lives of sulfoxaflor in spinach and Korean cabbage deduced from first order forms of decline (C=3.2539e<SUP>-0.179t</SUP> in spinach and C=1.2432e<SUP>-0.196t</SUP> in Korean cabbage) were 3.87 and 3.54 days, respectively. Pre-harvest residues of sulfoxaflor in spinach at 10-3 days (2.16 mg/kg) and 7-0 days (2.97 mg/kg) were above the EU-MRL (2.0 mg/kg), but within the MFDS value of 3.0 mg/kg. In Korean cabbage, residues at 10-3 days (0.74 mg/kg) and 7-0 days (1.17 mg/kg) were above the MFDS value of 0.3 mg/kg, though below the EU-MRL (6.0 mg/kg). Based on field incurred residues, it’s safe to apply sulfoxaflor to spinach as per MFDS regulation and Korean cabbage at 21-14 or 14-7 days before harvest as per EU regulation.

목차

Abstract
Introduction
Materials and methods
Results and discussion
Conclusions
Literature Cited

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