A pH-Responsive strategy for rapid enrichment and purification of tropane alkaloids in honey based on zeolitic imidazolate Framework-8: Cost-effective and environmentally friendly

文献类型： 外文期刊

第一作者： Wang, Zile

作者： Wang, Zile;Xu, Yuliang;Zhang, Shuai;Wang, Sihan;Han, Ke;Feng, Zhiyue;Liu, Chujun;Jiang, Haiyang;Wang, Zile;Peng, Tao;Xu, Yuliang;Wang, Sihan

作者机构：

关键词： Zeolitic imidazolate framework-8; Pretreatment; pH responsive; Adsorption mechanism; Analytical method

期刊名称：MICROCHEMICAL JOURNAL （ 影响因子：5.1； 五年影响因子：4.7 ）

ISSN： 0026-265X

年卷期： 2025 年 215 卷

页码：

收录情况： SCI

摘要： In order to explore a cost-effective and environmentally friendly strategy for pretreatment, this study established a pH-responsive method based on zeolitic imidazolate framework-8 (ZIF-8). The saturated adsorption capacity of target analytes (atropine and scopolamine) could reach 44.56 and 33.55 mg/g. Based on the characterization combined with the computer simulation, it is concluded that the adsorption mainly depends on electrostatic interaction, pi-pi stacking and hydrogen bonding. The adsorbed ZIF-8 can be used for immunoassay after acid-alkali treatment. By optimizing the conditions, the detection limit of the established pH-responsive immunoassay was 0.24 and 0.62 mu g/kg in honey, the recovery rates were 92.9 %similar to 112.3 %, and the coefficient of variations were less than 22.7 %. The desorption process in this strategy does not rely on massive organic reagents, making it potentially cost-effective and environmentally friendly for analyzing analytes in complex matrices.

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