Ratiometric fluorescent silver nanoclusters for the determination of mercury and copper ions

	Ratiometric fluorescent silver nanoclusters for the determination of mercury and copper ions
	Liu, Xiangjun 1; Wang, Linlin 1,2; Zhang, Nan 1,2; Shangguan, Dihua 1
刊名	ANALYTICAL METHODS
	2015
卷号	7 期号:19 页码:8019-8024
英文摘要	A newratiometric fluorescent nanoprobe based on DNA-stabilized silver nanoclusters (AgNCs) was one-pot synthesized by a simple reduction method. The obtained nanoprobe exhibited two typical green and red emissions of FAM and AgNCs, used as reference and response signals, respectively. Upon the addition of Hg2+ or Cu2+, the red emission of AgNCs was quenched greatly, whereas the green emission of FAM remained constant, resulting in the ratiometric fluorescence determination of Hg2+ and Cu2+. This ratiometric nanoprobe showed good selectivity for Hg2+ and Cu2+ over many other metal ions, and exhibited high sensitivity with a detection limit as low as 1.03 nM and 2.77 nM for Hg2+ and Cu2+, respectively. Moreover, with the aid of a chelating agent, EDTA, this ratiometric fluorescent nanoprobe can discriminate and realize exclusive determination of Hg2+ and Cu2+. This ratiometric fluorescent nanoprobe was successfully applied for the determination of Hg2+ and Cu2+ in real tap water samples.
收录类别	SCI
语种	英语
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/28418]
专题	化学研究所_活体分析化学实验室
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Analyt Chem Living Biosyst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xiangjun,Wang, Linlin,Zhang, Nan,et al. Ratiometric fluorescent silver nanoclusters for the determination of mercury and copper ions[J]. ANALYTICAL METHODS,2015,7(19):8019-8024.
APA	Liu, Xiangjun,Wang, Linlin,Zhang, Nan,&Shangguan, Dihua.(2015).Ratiometric fluorescent silver nanoclusters for the determination of mercury and copper ions.ANALYTICAL METHODS,7(19),8019-8024.
MLA	Liu, Xiangjun,et al."Ratiometric fluorescent silver nanoclusters for the determination of mercury and copper ions".ANALYTICAL METHODS 7.19(2015):8019-8024.