Integrating photoinduced gold nanoparticle formation inhibition and salt-assisted microextraction for colorimetric sensing of 2-mercaptobenzothiazole
文献类型： 外文期刊
第一作者： Su, Linjing
作者： Su, Linjing;Xu, Jingyan;Yu, Bingfeng;Zhang, Zhi;Xiong, Yuhao;Ma, Xionghui
作者机构：
关键词： Photoinduced gold nanoparticle formation; Salt-assisted liquid-liquid microextraction; 2-Mercaptobenzothiazole; Colorimetric sensing
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 209 卷
页码：
收录情况： SCI
摘要： The detection of 2-mercaptobenzothiazole (MBT), a widely used industrial compound posing significant environmental and health risks, demands efficient and practical solutions. Here, we present a novel colorimetric sensor integrating photoinduced gold nanoparticles (AuNPs) formation inhibition with salt-assisted liquid-liquid microextraction (SALLME) for rapid and sensitive MBT detection. This approach eliminates the need for AuNP seeds, enabling simple and cost-effective analysis at room temperature. The sensor demonstrated a wide linear range (5-640 mu M, R2 = 0.990) and an impressive limit of detection (LOD) of 0.024 mu M, outperforming several conventional methods. Spiked recovery tests using river water and soil samples yielded recovery rates of 94.0-107.5 % with relative standard deviations below 7.1 %, confirming its analytical accuracy and robustness in complex matrices. This study offers a promising pathway for developing practical MBT detection techniques with broad environmental applicability.
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