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Establishment of Analytical Method for Fenhexamid Residue in Korean Cabbage, Apple, Mandarin and Green Pepper  

Lee, Hye-Ri (Department of Agricultural Biotechnology, Seoul National University)
Riu, Myoung-Joo (Department of Agricultural Biotechnology, Seoul National University)
Park, Hee-Won (Department of Agricultural Biotechnology, Seoul National University)
Na, Ye-Rim (Department of Agricultural Biotechnology, Seoul National University)
Song, Hyuk-Hwan (Department of Agricultural Biotechnology, Seoul National University)
Keum, Young-Soo (Department of Agricultural Biotechnology, Seoul National University)
Zhu, Yongzhe (Qingdao Agricultural University)
Kim, Jeong-Han (Department of Agricultural Biotechnology, Seoul National University)
Publication Information
The Korean Journal of Pesticide Science / v.13, no.4, 2009 , pp. 223-231 More about this Journal
Abstract
This study was performed to develop a precise single residue analytical method of fungicide fenhexamid in representative crops for general residue analytical method which could be applied to most of crops. Korean cabbage, mandarin, apple and green pepper were selected, macerated, extracted with acetone, concentrated and partitioned with dichloromethane. Then the extracts were concentrated and cleaned-up through Florisil column with ethyl acetate/0.1% acetic acid in hexane [15:85, (v/v)] before concentration and analysis with HPLC. LOQ (Limit of Quantitation) of fenhexamid was 1 ng (S/N>10) and MQL (Method Quantitative Limit) was 0.01 mg/kg. Recoveries were measured at two fortification levels (10 MQL and 50 MQL) on crop samples and ranged from 85.2% to 94.8% (mean recoveries) and coefficients of variation were <10% regardless of sample type.
Keywords
Fenhexamid; HPLC; LOQ; MQL; Recovery;
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Times Cited By KSCI : 1  (Citation Analysis)
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