文献类型： 外文期刊
第一作者： Wang, Hao
作者： Wang, Hao;Chen, Zilei;Zhu, Chao;Du, Hongxia;Mao, Jiangsheng;Qin, Hongwei;Yan, Mengmeng;Wang, Hao;Chen, Zilei;Zhu, Chao;Du, Hongxia;Mao, Jiangsheng;Qin, Hongwei;Yan, Mengmeng;She, Yongxin
作者机构：
关键词： Interference -free; Aptasensor; Au@PB NPs; Anti -matrix effect; SERS tags
期刊名称：ANALYTICA CHIMICA ACTA （ 影响因子：6.2； 五年影响因子：5.9 ）
ISSN： 0003-2670
年卷期： 2023 年 1268 卷
页码：
收录情况： SCI
摘要： In this study, we propose an interference-free SERS-based aptasensor for trace detection of chlorpyrifos (CPF) in real samples. In the aptasensor, gold nanoparticles coated with Prussian blue (Au@PB NPs) were employed as SERS tags to provide a sole and intense Raman emission at 2160 cm- 1, which could avoid overlapping with the Raman spectrum of the real samples in 600-1800 cm- 1 to improve the anti-matrix effect ability of the aptasensor. Under the optimum conditions, this aptasensor displayed a linear response for CPF detection in the range of 0.1-316 ng mL-1 with a low detection limit of 0.066 ng mL-1. In addition, the prepared aptasensor shows excellent application to determine CPF in cucumber, pear and river water samples. The recovery rates were highly correlated with high-performance liquid chromatography-mass spectrometry (HPLC-MS/MS). This aptasensor shows interference-free, specific and sensitive detection for CPF and offers an effective strategy for other pesticide residue detection.
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