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Portable on-site colorimetric kit using stable gold nanorod powder for tracing hydrogen sulfide in typical environmental samples

文献类型：期刊论文

作者Su, Shuang6; Zhang, Zhiyang1,2; Chen, Jiadong3; Chen, Yan1,4; Cao, Xin1; Yan, Shuoyang1; Yu, Ranran1; Shao, Jie6; Wang, Xiaokun6; Choo, Jaebum3
刊名JOURNAL OF HAZARDOUS MATERIALS
出版日期2025-08-05
卷号493页码:11
关键词Environmental monitoring Hydrogen sulfide On-site detection Colorimetric kit Gold nanorod powder
ISSN号0304-3894
DOI10.1016/j.jhazmat.2025.138389
通讯作者Zhang, Zhiyang(zyzhang@yic.ac.cn) ; Wang, Xiaokun(wxkun8712@qust.edu.cn) ; Chen, Lingxin(lxchen@yic.ac.cn)
英文摘要On-site detection of hydrogen sulfide (H2S), a toxic byproduct of microbial decomposition, is essential for environmental surveys, sewage tracing, and occupational safety. While existing gold nanorods (Au NRs)-based colorimetric methods offer portability and sensitivity, their practicality is hindered by the instability of enzymes and colloidal nanoparticles. Herein, we present an enzyme-free, portable H2S detection device using Au NRs powder, ensuring highly sensitive and reliable colorimetric detection while enhancing long-term applicability. The sensing strategy involves two steps: H2S microextraction and colorimetric assay. First, H2S is accumulated into a NaOH aqueous drop from a complex sample matrix via headspace single-drop micro-extraction (HS-SDME) using sulfamic acid. In the colorimetric assay, dissolved H2S reduces KIO3 to I2 in glycineHCl buffer (pH 2.6), which etches Au NRs in the presence of Br-and CTA+, causing a blue shift in the plasmon band with a distinct color change. This method achieves a visual detection limit of 0.05 mu M, approximately 10 times lower than the Methylene Blue method. The use of HS-SDME ensures excellent selectivity against coexisting ions (>= 10-fold) and small organic molecules (100-fold). Validation with real samples yielded recoveries of 92.40 %-109.51 %, demonstrating reliability in environmental monitoring and river pollution tracing. To simplify detection, we developed a liquid-free test kit containing an H2S microextraction tube (sulfamic acid powder), a colorimetric assay tube (Au NRs powder and solid buffer), and a portable heating device. This enzyme-free sensor ensures long-term stability and practicality, advancing Au NRs-based sensors for environmental monitoring.
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001481464100001
资助机构Key Deployment Project of Centre for Ocean Mega-Research of Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Research Foundation of Korea ; Taishan Scholars Program ; Natural Science Foundation of Shandong Province ; Yantai Science and Technology Achievement Transfer and Transformation Demonstration Base ; Special Fund for the Scholar Program of Yantai ; Project of Yantai Growth Drivers Conversion Research Institute ; Key Research and Development Program of Shandong Province ; Project for Enhancing the Innovation Capacity of Technology-based Small and Medium-sized Enterprises
源URL[http://ir.yic.ac.cn/handle/133337/40933]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者Zhang, Zhiyang; Wang, Xiaokun; Chen, Lingxin
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Coastal Zone Ecol Environm Monitoring Technol & Eq, Shandong Key Lab Coastal Environm Proc,Key Lab Coa, Yantai 264003, Peoples R China
2.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
3.Chung Ang Univ, Dept Chem, Seoul 06974, South Korea
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Shaoxing Univ, Coll Chem & Chem Engn, Shaoxing 312000, Peoples R China
6.Qingdao Univ Sci & Technol, Coll Biol Engn, Qingdao 266042, Peoples R China
推荐引用方式
GB/T 7714		 Su, Shuang,Zhang, Zhiyang,Chen, Jiadong,et al. Portable on-site colorimetric kit using stable gold nanorod powder for tracing hydrogen sulfide in typical environmental samples[J]. JOURNAL OF HAZARDOUS MATERIALS,2025,493:11.
APA Su, Shuang.,Zhang, Zhiyang.,Chen, Jiadong.,Chen, Yan.,Cao, Xin.,...&Chen, Lingxin.(2025).Portable on-site colorimetric kit using stable gold nanorod powder for tracing hydrogen sulfide in typical environmental samples.JOURNAL OF HAZARDOUS MATERIALS,493,11.
MLA Su, Shuang,et al."Portable on-site colorimetric kit using stable gold nanorod powder for tracing hydrogen sulfide in typical environmental samples".JOURNAL OF HAZARDOUS MATERIALS 493(2025):11.

入库方式： OAI收割

来源：烟台海岸带研究所

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