Rapid determination of 134 pesticides in tea through multi-functional filter cleanup followed by UPLC-QTOF-MS

• Published in: Food chemistry 2022-02, Vol.370, p.130846-130846, Article 130846
• Main Authors: Meng, Xiaodi, Song, Wei, Xiao, Yu, Zheng, Ping, Cui, Chuanjian, Gao, Wanjun, Hou, Ruyan
• Format: Article
• Language: English
• Subjects: Multi-residue analysis; Pesticide; QuEChERS; Tea; UPLC-QTOF-MS
• ISSN: 0308-8146; 1873-7072
• DOI: 10.1016/j.foodchem.2021.130846

[Display omitted] •Porous PVPP was selected as a new adsorption material.•MFF adopts upper and lower layered filling mode when loading.•MFF takes less time and economic cost.•Lower matrix effect and better recovery rates are obtained by MFF purification. Ensuring the safety of tea requires effective methods for the simultaneous analysis of pesticide residues in the product. A sensitive and reliable method to scan for 134 pesticide residues in tea was developed that employs a novel Multi-Functional Filter (MFF) based on d-SPE extraction and ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry. The adsorption material was developed by porous polyvinylpolypyrrolidone (PVPP) for the removal of polyphenols. Acetonitrile extraction was passed through a syringe and then detected by UPLC-Q-TOF-MS. Method validation revealed satisfactory linearity with correlation coefficients higher than 0.985 for all pesticides. All limits of quantification were below 10 µg/kg. The matrix effects of 133 of the pesticides were nearly negligible (