Dual-mode colorimetric/fluorometric test paper for rapid on-site sulfur dioxide quantification in food and environmental samples

被引：0

作者：

Wang, Ziqiang ^{[1
]}

Li, Nanxin ^{[2
]}

Xiao, Ziyu ^{[3
]}

Xu, Hanyu ^{[3
]}

Wang, Liyang ^{[3
]}

Pan, Tingting ^{[4
]}

Liao, Jianxiang ^{[1
,4
]}

Tian, Yanqing ^{[3
]}

机构：

[1] Southern Univ Sci & Technol, Sch Med, 1088 Xueyuan Blvd, Shenzhen 518055, Guangdong, Peoples R China

[2] Guangzhou Qual Supervis & Testing Inst, Guangzhou 51000, Peoples R China

[3] Southern Univ Sci & Technol, Dept Mat Sci & Engn, 1088 Xueyuan Blvd, Shenzhen 518055, Guangdong, Peoples R China

[4] Shenzhen Childrens Hosp, Dept Pediat Neurol, 7019 Yitian Rd, Shenzhen 518038, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2025年 / 13卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Sulfur dioxide; Fluorescent probe; Aggregation-induced emission; Portable visual detection; FLUORESCENT-PROBES;

D O I：

10.1016/j.jece.2024.115115

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The utilization of sulfur dioxide (SO2) in food processing and industrial applications presents significant hazards to public health and environmental stability. To address the critical need for rapid and user-friendly SO2 detection methods, we present the design and synthesis of a novel probe, TN , for sensitive and selective quantification of SO2 in food and environmental water. Formulated with triphenylamine and nitroisoxazole as fundamental constituents, TN exhibits a unique response to SO2 within a remarkably brief 40-second timeframe. Upon specific Michael addition with SO2, TN undergoes a dramatic colorimetric transition from crimson to colorless, coupled with a pronounced blue shift in fluorescence emission from 570 nm to 475 nm. Leveraging these properties, we developed a portable TN-based visual detection test paper, enabling dual-mode colorimetric/fluorometric analysis for on-site SO2 quantification in diverse matrices. This innovative approach, facilitated by smartphone technology, offers a detection range of 0-80 mu M under ambient light and 0-100 mu M under UV excitation, making it the first reported method to fully cover the World Health Organization specified range (63.16 mu M). This study underscores the potential application of portable detection technology for SO2 in everyday households.

引用

页数：9