期刊
ANALYTICAL METHODS
卷 4, 期 2, 页码 488-491出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ay05764f
关键词
-
资金
- National Natural Science Foundation of China [20975089, 20975062, 20875088]
- Chinese Academy of Sciences [KZCX2-EW-206]
A simple and sensitive method for the colorimetric detection of mercury ions (Hg2+) has been proposed by using anti-aggregation of gold nanoparticles (AuNPs) based on the co-ordination between thymine and mercury ions. The thymine can bind to the AuNPs through Au-N bonds and induce aggregation of AuNPs. In the presence of Hg2+, the thymine was released from the surface of AuNPs via the formation of a thymine-Hg2+ coordination complex, leading to the dispersion of AuNPs. The detection reagent can be simply prepared by mixing thymine with citrate-capped AuNPs. This method is not only costeffective, but also avoids complicated surface modifications and tedious separation processes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据