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Integrating photoinduced gold nanoparticle formation inhibition and salt-assisted microextraction for colorimetric sensing of 2-mercaptobenzothiazole

文献类型: 外文期刊

作者: Su, Linjing 1 ; Xu, Jingyan 1 ; Yu, Bingfeng 1 ; Ma, Xionghui 2 ; Zhang, Zhi 1 ; Xiong, Yuhao 1 ;

作者机构: 1.Hezhou Univ, Sch Food & Biol Engn, Guangxi Key Lab Hlth Care Food Sci & Technol, Hezhou 542899, Peoples R China

2.Chinese Acad Trop Agr Sci, Anal & Test Ctr, Hainan Prov Key Lab Qual & Safety Trop Fruits & Ve, Haikou 571101, Peoples R China

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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