CdTe based water-soluble fluorescent probe for rapid detection of zilpaterol in swine urine and pork

文献类型： 外文期刊

第一作者： Wei, Yihua

作者： Wei, Yihua;Li, Weihong;Han, Yan;Xiong, Yan;Kuang, Yuanying;Zhang, Jinyan

作者机构：

关键词： Zilpaterol hydrochloride; CdTe quantum dot; Fluorescence immunoassay

期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）

ISSN： 0308-8146

年卷期： 2024 年 445 卷

页码：

收录情况： SCI

摘要： Zilpaterol hydrochloride (zilpaterol) is used in animal feed as it can increase the lean meat mass. However, consuming zilpaterol-containing animal products may damage human health. Therefore, rapid detection of zilpaterol is attracting increasing research attention. This study aimed to developed a fast, accurate, and ultrasensitive fluorescence immunoassay based on CdTe quantum dots (QDs). A CdTe QD fluorescence sensor was synthesized from thioglycolic acid using a simple hydrothermal method. The morphology and structure of the CdTe QDs were characterized using transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Fourier-transform infrared spectroscopy. The detection limits of our method in swine urine and pork samples were 0.5 mu g/L and 1.2 mu g/kg, respectively. A wide linear range of 0.1-10000 mu g/L (R2 = 0.996) was achieved. Both within-run precision (CVw) and between-run precision (CVb) were <= 10 %. The method was then successfully applied for the analysis of zilpaterol contents in swine urine and pork samples.

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