Article (Scientific journals)
Screening of pesticide residues in Traditional Chinese Medicines using modified QuEChERS sample preparation procedure and LC-MS/MS analysis
Li, R.-X.; Li, M.-M.; Wang, T. et al.
2020In Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences, 1152
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Keywords :
Modified QuEChERS; Multiresidues; Pesticides; Traditional Chinese Medicine; UHPLC-MS/MS; Extraction; Magnesium compounds; Medicine; Phase separation; Screening; Dispersive solid phase extraction; High-throughput method; Limits of quantitations; Maximum residue levels; Ophiopogon Japonicus; Pesticide residue; Sample preparation procedure
Abstract :
[en] A robust and high-throughput method was developed for the determination of 108 pesticide residues in Traditional Chinese Medicines (TCMs) simultaneously using a combination of UHPLC-MS/MS analysis and the modified QuEChERS method. Extraction was carried out in acetonitrile containing 0.75% (v/v) acetic acid with ultrasonication for 15 min; MgSO4 and C18 were used as the dispersive-solid phase extraction sorbents. The method exhibited good linearity (r2 > 0.9901), in addition to good selectivity, precision and repeatability. More than 92% of pesticides exhibited high rates or recovery in the 70–120% range. This method showed high sensitivity, with Limits of Quantitation in the 0.01–20 ng/mL range in Cortex Moutan, and 0.01–50 ng/mL in the other TCMs. The method was employed for the analysis of 39 real samples from different habitats, and pesticides were detected in 92.3% of the samples, with 26 pesticides being detected in these three TCMs. More than four pesticides were detected in a third of the samples. Among them, tebuconazole was detected in all the three TCMs with 0.22–22.02 μg/kg concentration, which was lower than the provisions in GB 2763-2019 (50 μg/kg). In addition, the paclobutrazol detection rate in Ophiopogon japonicus was 100%, and the detected concentrations of 9 samples exceeded the Maximum Residue Levels defined for vegetables (50 μg/kg). Considering there are no regulations that govern the limits of pesticide residues in the three TCMs in China, we recommend the acceleration of efforts to introduce appropriate regulations. © 2020 Elsevier B.V.
Disciplines :
Agriculture & agronomy
Author, co-author :
Li, R.-X.;  Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China, State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Li, M.-M.;  Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Wang, T.;  Institute of Chinese Medicinal Materials, Mianyang Academy of Agricultural Sciences, Mianyang, 621023, China
Wang, T.-L.;  National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, State Key Laboratory Breeding Base of Dao-di Herbs, Beijng, 100700, China
Chen, J.-Y.;  Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China, State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Francis, Frédéric  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Fan, B.;  Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Kong, Z.-Q.;  Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China, State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Dai, X.-F.;  Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China, State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Language :
English
Title :
Screening of pesticide residues in Traditional Chinese Medicines using modified QuEChERS sample preparation procedure and LC-MS/MS analysis
Publication date :
2020
Journal title :
Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
ISSN :
1570-0232
eISSN :
1873-376X
Publisher :
Elsevier B.V.
Volume :
1152
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 09 September 2020

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