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http://dx.doi.org/10.5338/KJEA.2017.36.1.07

Establishment of Pre-Harvest Residue Limits and Residue Characteristics of Penthiopyrad and Pyriofenone in Cucumber (Cucumis sativus L.) Under Greenhouse Condition  

Leem, Su-Bin (School of Natural Resources and Environmental Science, College of Agriculture and Life Sciences, Kangwon National University)
Kim, Ji-Yoon (School of Natural Resources and Environmental Science, College of Agriculture and Life Sciences, Kangwon National University)
Hur, Kyung-Jin (School of Natural Resources and Environmental Science, College of Agriculture and Life Sciences, Kangwon National University)
Kim, Hee-Gon (School of Natural Resources and Environmental Science, College of Agriculture and Life Sciences, Kangwon National University)
Hur, Jang-Hyun (School of Natural Resources and Environmental Science, College of Agriculture and Life Sciences, Kangwon National University)
Publication Information
Korean Journal of Environmental Agriculture / v.36, no.1, 2017 , pp. 43-49 More about this Journal
Abstract
BACKGROUND: Greenhouse crops are one of agricultural products consumed largely in Korea. Cucumber is a typical example as main vegetables of greenhouse crops. Thus, pesticide residue analysis is an important requirement to guarantee pesticide safety of cucumber. This work was aim to investigate the residues of penthiopyrad and pyriofenone in cucumber after harvest. METHODS AND RESULTS: Cucumber was subjected to treat with penthiopyrad and pyriofenone at a level of recommended dose 0, 1, 2, 3, 5, 7 and 10 days before harvest under greenhouse conditions. The samples were extracted with organic solvent by using a homogenizer and purified on solid phase cartridge column followed by LC-MS/MS analysis. The recovery levels of penthiopyrad and pyriofenoneranged from approximately 81 to 93% with the method limit of 0.005 mg/kg and coefficient of variation less than 10%. Penthiopyrad and pyriofenone were detected at a level less than maximum residue limit in cucumber at 10 days before. The half-lives of penthiopyrad and pyriofenone were determined to 2.4 ~ 2.6 days. CONCLUSION: Penthiopyrad and pyriofenone are suggested to use in cucumber 10 days before harvest to reach their levels less than maximum residue limit.
Keywords
Biological half-life; Cucumber; Penthiopyrad; Pyriofenone; Pre-harvest residue limits (PHRLs);
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Times Cited By KSCI : 17  (Citation Analysis)
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