基于汞（II）介导的银纳米粒子使铱（III）配合物猝灭实现汞（II）离子的荧光开启检测。
Luminescent turn-on detection of Hg(II) via the quenching of an iridium(III) complex by Hg(II)-mediated silver nanoparticles.
机构信息
Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China.
出版信息
Sci Rep. 2017 Jun 15;7(1):3620. doi: 10.1038/s41598-017-03952-x.
A novel luminescent turn-on detection method for Hg(II) was developed. The method was based on the silver nanoparticle (AgNP)-mediated quenching of Ir(III) complex 1. The addition of Hg(II) ions causes the luminescence of complex 1 to be recovered due to the oxidation of AgNPs by Hg(II) ions to form Ag(I) and Ag/Hg amalgam. The luminescence intensity of 1 increased in accord with an increased Hg(II) concentration ranging from 0 nM to 180 nM, with the detection limit of 5 nM. This approach offers an innovative method for the quantification of Hg(II).
开发了一种用于检测 Hg(II) 的新型荧光开启检测方法。该方法基于银纳米粒子 (AgNP) 介导的铱 (III) 配合物 1 的荧光猝灭。加入 Hg(II) 离子后，由于 Hg(II) 离子将 AgNPs 氧化为 Ag(I) 和 Ag/Hg 汞齐，导致 1 的荧光恢复。1 的荧光强度随着 Hg(II)浓度从 0 nM 增加到 180 nM 而增加，检测限为 5 nM。该方法为 Hg(II) 的定量提供了一种创新的方法。
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