Determination of new generation amide insecticide residues in complex matrix agricultural food by ultrahigh performance liquid chromatography tandem mass spectrometry

Scientific Reports

Maoxuan Li¹  Yangang Li¹  Xinglian Chen¹  Haixian Fang¹  Li Wang¹  Hongcheng Liu²  Tao Lin² 

[1] Quality Standards and Testing Technology Research Institute, Yunnan Academy of Agricultural Science, Beijing Road 2238 Number, 650205, Kunming, People’s Republic of China;Quality Standards and Testing Technology Research Institute, Yunnan Academy of Agricultural Science, Beijing Road 2238 Number, 650205, Kunming, People’s Republic of China;Laboratory of Quality & Safety Risk Assessment for Agro-Products (Kunming), Ministry of Agriculture and Rural Affairs, 650205, Kunming, People’s Republic of China;

DOI  :  10.1038/s41598-021-02645-w

来源: Springer

【 摘 要 】

Eight new generation amide insecticide residues analysis by multiwalled carbon nanotubes (MWCNs) cleanup, combined with QuEChERS and ultrahigh performance liquid chromatography tandem mass spectrometry has been developed and successfully applied in complex matrix such as orange, celery, onion, litchi, mango, shallot, chives, avocado, garlic. The matric effect of MWCNs is optimized and compared with ordinary cleanup materials. The results show that the performance of MWCNs is fine and effectively reduce matrix interference. Through chemical structure skeletons analyzed, chlorantraniliprole, bromoantraniliprole, and cyantraniliprole can cause same product ions of m/z 286.0 or 177.1 in the ESI+ mode, then tetrachlorantraniliprole and cyclaniliprole can produce collective ions of m/z 146.9 in the ESI− mode. The coefficients (R2) were greater than 0.9990, the limit of quantification ranges from 0.03 to 0.80 μg/kg, the recovery rate ranges from 71.2 to 120%, and the relative standard deviation (RSD) ranges from 3.8 to 9.4%. The method is fast, simple, sensitive, and suitable for the rapid determination of amide pesticides in complex matrix agricultural food.

【 授权许可】

CC BY