Residual determination of pyrethrins in Lycium barbarum (goji) by GC-MS/MS and a dietary risk assessment of Chinese goji consumption

作者：Xinxian Qin, Xiaoshuang Luo, Jiahua Han, Ye Chen, Kankan Zhang, Deyu Hu · 发表于：Food Additives & Contaminants Part A · 年份：2020 · DOI：10.1080/19440049.2019.1707295 · 被引用次数：15 · 研究领域：Pesticide Residue Analysis and Safety、Analytical chemistry methods development、Environmental Chemistry and Analysis

Xinxian Qina, Xiaoshuang Luoa, Jiahua Hana, Ye Chena, Kankan Zhang*a & Deyu Huaa State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, ChinaCONTACT Kankan Zhang kankan16@126.com State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, ChinaABSTRACTAn accurate and simple analytical approach for the determination of residues cinerin I, cinerin II, jasmolin I, jasmolin II, pyrethrin I and pyrethrin II (six active ingredients of pyrethrins) in fresh and dried goji berries was developed and validated for analysis by gas chromatography with tandem mass spectrometry. Good linearity (determination coefficient >0.99), accuracy (average recoveries of 88.3%–111.5%) and precision (intra- and inter-day relative standard deviations of 0.4%–8.3%) were obtained with the optimised determination method. The LODs and LOQs of the six analytes in two goji matrices were 0.24–2.1 µg/kg and 0.8–7 µg/kg, respectively. In a field trial, the terminal residual levels of pyrethrins (the sum of the concentrations of the six target analytes) in fresh and dried goji berry samples were <20–304 µg/kg at harvest, which could provide some information for the establishment of a maximum residue limit of pyrethr...