Kim Yong-Kyoung, Baek Eun Joo, Na Tae Woong, Sim Kyu Sang, Kim Hyoyoung, Kim Ho Jin
Experiment Research Institute, National Agricultural Products Quality Management Service, 141, Yongjeon-ro, Gimcheon-si, Gyeonsnagbuk-do 39660, Korea.
National Institute of Food & Drug Safety Evaluation, 187, Cheongju-si, Chungcheongbuk-do 28159, Korea.
J Agric Food Chem. 2024 Oct 1. doi: 10.1021/acs.jafc.4c01992.
A method was developed to analyze residual pesticides in various vegetables using liquid chromatography-tandem mass spectrometry (LC-MS/MS) and gas chromatography-tandem mass spectrometry (GC-MS/MS). A method can analyze over 200 individual compounds, selectively separate peaks within 30 min, and meet various criteria such as those by the Codex Alimentarius Commission (CODEX). Most compounds showed recovery rates between 70 and 120%, and a relative standard deviation was within 20%. Measurement uncertainty, considering various influencing factors such as instrument precision, method sensitivity, experimental conditions, sample handling, and analytical procedures, was meticulously calculated. The expanded uncertainties of cross-checking 33 available pesticides ranged from 10.1 to 26.2 μg/kg at a confidence level of approximately 95%. Risk assessment of detected pesticides in agricultural products indicated a safety range of 0.00003-2.87240%. The developed method effectively analyzes diverse compounds simultaneously, contributing to agricultural product safety.
