Development of a Zeolite H-ZSM-5-Based D-mu SPE Method for the Determination of Organophosphorus Pesticides in Tea Beverages

文献类型： 外文期刊

第一作者： Bai, Bing

作者： Bai, Bing;Wu, Nan;Yang, Haifeng;Liu, Haiyan;Jin, Xiaofen;Chen, Lei;Huang, Zhiying;Zhou, Changyan;Wang, Shouying;Si, Wenshuai;Yang, Haifeng;Liu, Haiyan;Jin, Xiaofen;Chen, Lei;Huang, Zhiying;Wang, Shouying;Si, Wenshuai;Si, Wenshuai

作者机构：

关键词： zeolite H-ZSM-5; tea beverage; organophosphorus pesticides; dispersive solid-phase extraction; HPLC-MS; MS

期刊名称：PROCESSES （ 影响因子：3.5； 五年影响因子：3.4 ）

ISSN：

年卷期： 2023 年 11 卷 4 期

页码：

收录情况： SCI

摘要： In this study, a novel dispersive micro-solid phase extraction (D-mu SPE) technique with H-ZSM-5 zeolite as an adsorbent was developed for the determination of 21 trace pesticides in tea beverages. The adsorption and desorption of H-ZSM-5 zeolites were investigated based on structural characteristics and adsorption properties similar to those of H-beta zeolites. In combination with the properties of the adsorbates, it was explained that the adsorption reaction occurred on the microporous surface and mesopores of H-ZSM-5. Based on optimal parameters, the beverage samples were extracted by 50 mg of zeolite within 1 min. The zeolite was eluted with 2 mL of an acetonitrile-water mixture after separation, and the eluent was filtered prior to HPLC-MS/MS analysis. The D-mu SPE protocol demonstrated acceptable accuracy and precision, with recoveries between 62.1% and 106.6% and relative standard deviations of 1.4% to 12.6%, as validated by analytical reliability. The correlation coefficient in the linear range of 0.2-50 ng center dot mL(-1) was greater than 0.98, with limits of detection of 0.05-0.1 ng center dot mL(-1) and limits of quantification of 0.1-0.2 ng center dot mL(-1). The matrix effects ranged from 76.2% to 112.7%. The results indicate that the novel D-mu SPE technique based on H-ZSM-5 is a rapid, simple, green and economical method for the determination of pesticide residues in tea beverages. The proposed method achieved simultaneously low adsorbent dosage, 20-fold enrichment factor, rapid pre-concentration in 12 min, minimal organic wastes, and effective reduction of matrix interference.

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