Kesheng Lin1,3,#, Zhengqi Wang2,#, Li Wang1,3, Jiawen Zhou1,3, Lijuan Han1,3, Jingjing Wen2, Tingxia Dong2, Ran Duan2,*, Ning Li1,3,*
Phyton-International Journal of Experimental Botany, Vol.92, No.2, pp. 423-437, 2023, DOI:10.32604/phyton.2022.023763
Abstract Prohibited pesticide residues have become one of the main factors affecting the quality and safety of Lycii Fructus, However, rarely studies focus on the rapid determination of these residues. Here, a total of 30 kinds of prohibited pesticide residues were determined by ultra-performance liquid chromatography tandem triple quadrupole mass spectrometry (UPLC-MS/MS) in five different process ways. Pretreatment methods, chromatographic separation and detection conditions in mass spectrometry were all optimized accordingly. Among the five different pretreatment methods, the first and third solid phase extraction failed to provide high recoveries of sulfosulfuron compounds (both lower than 60%). Recovery of chlorphenamidine by the… More >
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