Multiresidue Pesticide Analysis in Tea Using GC-MS/MS to Determine 12 Pesticide Residues (GB 2763-2021)

被引:5
|
作者
Zheng, Kunming [1 ]
Lin, Rongmei [2 ]
Liu, Xuezhi [3 ]
Wu, Xiaoping [1 ]
Chen, Rongfeng [4 ]
Yang, Mengquan [5 ,6 ]
机构
[1] Fujian CC Fairreach Food Safety Testing Co Ltd, Fuzhou 350001, Peoples R China
[2] Henan Agr Univ, Coll Plant Protect, Zhengzhou 450002, Peoples R China
[3] Chinese Acad Inspect, Quarantine Comprehens Test Ctr, Beijing 100123, Peoples R China
[4] Natl Ctr Occupat Safety & Hlth, NHC, Beijing 102308, Peoples R China
[5] Henan Agr Univ, Coll Tobacco Sci, Zhengzhou 450002, Peoples R China
[6] Univ Tokyo, Grad Sch Pharmaceut Sci, Bunkyo Ku, Tokyo 1138654, Japan
来源
MOLECULES | 2022年 / 27卷 / 23期
关键词
gas chromatography-tandem mass spectrometry; solid-phase extraction; pesticide residues; multiple reaction monitoring; GB; 2763-2021; SOLID-PHASE EXTRACTION; MASS;
D O I
10.3390/molecules27238419
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Pesticides are widely used on tea plants, and pesticide residues are of significant concern to consumers. The National Food Safety Standard Maximum Residue Limits for Pesticides in Food (GB 2763-2021) was recently amended. However, detection methods for pesticides newly added to the list of residues in beverages have not yet been established. For that reason, this study developed a solid-phase extraction (SPE) and gas chromatography-tandem mass spectrometry (GC-MS/MS) method for determining the residues of 12 pesticides, including four newly added, in black and green tea. Sample preparation processes (sample extraction, SPE clean-up, elution solvent, and elution volume) were optimized to monitor these residues reliably. Multiple reaction monitoring (MRM) was used for GC-MS/MS electron impact (EI) mode determination. Finally, satisfactory recoveries (70.7-113.0% for green tea and 72.0-99.1% for black tea) were achieved at three concentrations (10 mu g/kg, 20 mu g/kg, and 100 mu g/kg). The LOQs were 0.04-8.69 mu g/kg, and the LODs were 0.01-3.14 mu g/kg. This study provides a reliable and sensitive workflow for determining 12 pesticide residues in tea, filling a gap in the newly revised National Standards.
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页数:11
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