Development and Validation of an Analytical Method for Flutianil Residue Identification Using Gas Chromatography-Electron Capture Detection
2014
Kwon, J.E., Ministry of Food and Drug Safety, Seoul, Republic of Korea | Do, J.A., Ministry of Food and Drug Safety, Seoul, Republic of Korea | Park, H.J., Ministry of Food and Drug Safety, Seoul, Republic of Korea | Lee, J.Y., Ministry of Food and Drug Safety, Seoul, Republic of Korea | Cho, Y.J., Ministry of Food and Drug Safety, Seoul, Republic of Korea | Oh, J.H., Ministry of Food and Drug Safety, Seoul, Republic of Korea | Rhee, G.S., Ministry of Food and Drug Safety, Seoul, Republic of Korea | Lee, S.J., Ministry of Food and Drug Safety, Seoul, Republic of Korea | Chang, M.I., Ministry of Food and Drug Safety, Seoul, Republic of Korea
A sensitive and simple analytical method to identify flutianil residues in agricultural commodities was developed and validated using gas chromatography-electron capture detection (GC-ECD) and mass spectrometry (GC-MS). The flutianil residues were extracted with acetonitrile, partitioned with dichloromethane, and then purified using a silica solid-phase extraction (SPE) cartridge. The method was validated using pepper, sweet pepper, mandarin, hulled rice, soybean, and potato spiked with 0.02 or 0.2 mg/kg flutianil. The average recovery of flutianil was 76.5-108.0% with a relative standard deviation of less than 10%. The limit of detection and limit of quantification were 0.004 and 0.02 mg/kg, respectively. The result of recoveries and relative standard deviation were in line with Codex Alimentarius Commission Guidelines (CAC/GL 40). These results show that the method developed in this study is appropriate for flutianil identification and can be used to maintain the safety of agricultural products containing flutianil residues.
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