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http://dx.doi.org/10.13103/JFHS.2019.34.2.191

Dissipation of Bifenthrin and Chlorothalonil in Crown Daisy during Cultivation and their Biological Half-lives  

Kang, Min-Seong (Guri Agro-fishery Products Inspection Center, Gyeonggi province Institute of Health and Environment Guri)
Park, Po-Hyun (Guri Agro-fishery Products Inspection Center, Gyeonggi province Institute of Health and Environment Guri)
Kim, Ki-Yu (Guri Agro-fishery Products Inspection Center, Gyeonggi province Institute of Health and Environment Guri)
Lim, Bu-Geon (Guri Agro-fishery Products Inspection Center, Gyeonggi province Institute of Health and Environment Guri)
Ryu, Kyong-Shin (Guri Agro-fishery Products Inspection Center, Gyeonggi province Institute of Health and Environment Guri)
Lee, You-Jin (Guri Agro-fishery Products Inspection Center, Gyeonggi province Institute of Health and Environment Guri)
Lim, Jeong-Hwa (Guri Agro-fishery Products Inspection Center, Gyeonggi province Institute of Health and Environment Guri)
Kang, Choong-Won (Guri Agro-fishery Products Inspection Center, Gyeonggi province Institute of Health and Environment Guri)
Kim, Youn-Ho (Guri Agro-fishery Products Inspection Center, Gyeonggi province Institute of Health and Environment Guri)
Lee, Sun-Young (Guri Agro-fishery Products Inspection Center, Gyeonggi province Institute of Health and Environment Guri)
Seo, Jeong-Hwa (Guri Agro-fishery Products Inspection Center, Gyeonggi province Institute of Health and Environment Guri)
Park, Yong-Bae (Guri Agro-fishery Products Inspection Center, Gyeonggi province Institute of Health and Environment Guri)
Yoon, Mi-Hye (Guri Agro-fishery Products Inspection Center, Gyeonggi province Institute of Health and Environment Guri)
Publication Information
Journal of Food Hygiene and Safety / v.34, no.2, 2019 , pp. 191-198 More about this Journal
Abstract
This study investigated the residual characteristics of bifenthrin and chlorothalonil in crown daisy and suggested pre-harvest residue limits (PHRLs) based on their dissipation patterns and biological half-lives. The samples for residue analysis were harvested at 0 (3 hr), 1, 3, 5, 7, 9, 11, 13, 15, 18, 22 and 26 days after treatment, and analyzed by $GC/{\mu}-ECD$ and TOF/MS. The limit of quantitation (LOQs) of bifenthrin and chlorothalonil were 0.0046 mg/kg and 0.0007 mg/kg, respectively. Recoveries ranged from $88.67{\pm}7.97%$ and $99.90{\pm}16.03%$, showing that this method is appropriate for the analysis of the pesticide residues in crown daisy. Being well within first order kinetics, the biological half-lives of the pesticide residues in crown daisy were 9.63 days for bifenthrin and 6.54 days for chlorothalonil. The PHRLs of bifenthrin and chlorothalonil were recommended as 11.70 mg/kg and 24.10 mg/kg for 26 days before harvest, respectively.
Keywords
Bifenthrin; Chlorothalonil; Crown daisy; Biological half-life; Pre-harvest residue limit;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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