Study on colorimetric detection of Hg2+by gold nanoparticles modified with melamine and arginine

被引：0
|
作者：
Kou, Yingying [1 ]
Wu, Zhuang [1 ]
Yan, Chenling [2 ]
Wang, Jinggang [3 ]
Liu, Fan [1 ]
Yuan, Donghai [1 ]
机构：
[1] Beijing Univ Civil Engn & Architecture, Key Lab Urban Stormwater Syst & Water Environm, Minist Educ, Beijing 100044, Peoples R China
[2] Beijing Municipal Inst City Management, Beijing Key Lab Municipal Solid Waste Detect Anal, Beijing 100028, Peoples R China
[3] Nanchang Vocat Univ, Sch Informat Technol, Nanchang 330007, Peoples R China
来源：
CHEMICAL PHYSICS LETTERS | 2025年 / 868卷
基金：
中国国家自然科学基金; 北京市自然科学基金;
关键词：
Colorimetric detection; Nanogold; Mercury; Arginine; Melamine; MERCURY(II); SIZE; ACID;
D O I：
10.1016/j.cplett.2025.142040
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Development of a new sensor for the simple detection of Hg2+, which improves on the shortcomings of conventional mercury detection.The size of the nanogold(AuNPs) particles was controlled by controlling the amount of sodium citrate and gold salt. AuNPs was also functionalized by arginine and melamine. The functionalized nanogold was sensitive and selective for Hg2+. It is also useful in real water samples. The 32 nm nanogold modification had the lowest limit of detection (LOD). The melamine-functionalized 32 nm AuNPs had a LOD of 4.17 mu mol/L, which was better than the arginine-functionalized 32 nm AuNPs with a LOD of 5 mu mol/L.
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页数：10
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