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논문 기본 정보

자료유형
학술저널
저자정보
Dasom Shin (Chungnam National University) Joohye Kim (Ministry of Food and Drug Safety) Hui-Seung Kang (Ministry of Food and Drug Safety) Chi-Hwan Lim (Chungnam National University)
저널정보
한국농약과학회 농약과학회지 농약과학회지 제24권 제4호
발행연도
2020.12
수록면
321 - 333 (13page)
DOI
10.7585/kjps.2020.24.4.321

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초록· 키워드

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In the present study, an analytical method was developed and optimized for screening and confirmation of multi-pesticide residues in farmed aquatic animal samples. Target pesticides (organochlorines, organophosphorus, and synthetic pyrethroids) were extracted via the QuEChERS (quick, easy, cheap, effective, rugged, and safe) approach. Ethyl acetate was used for extraction of pesticides from the samples (flatfish, eel, shrimp, and Manila clam), which were then purified using C<SUB>18</SUB> and primary secondary amine. Finally, the extracts were filtered through a 0.22-μm polytetrafluoroethylene syringe filter and subsequently analyzed using gas chromatography coupled with mass spectrometry. The target analytes were ionized in the positive mode of electron impact ionization using multiple reaction monitoring. According to the CODEX CAC/GL-71 guideline, accuracy, precision, linearity, and limit of detection were evaluated for all matrices. The accuracy (recoveries) was between 62.4% and 120%, and precision (relative standard deviations) was below 20%. The linearity of the matrix calibration curves was r²>0.98. The limits of detection and quantification for all pesticides were ≤3 μg/kg and ≤10 μg/kg, respectively. In real sample (n=79) analysis, trifluralin was detected at 67 μg/kg in one Manila clam sample. Based on our results, the proposed method was satisfactory for pesticide residue determination in aquatic animal products.

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Abstract
Introduction
Materials and Methods
Results and Discussion
Conclusions
Literature Cited

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