Issue 9, 2012
From the journal:

Analyst

Rapid visual detection of aluminium ion using citrate capped gold nanoparticles†

Shan Chen,a   Yi-Min Fang,a   Qing Xiao,a   Ju Li,a   Song-Bo Li,a   Hong-Ju Chen,a   Jian-Jun Sun*a  and  Huang-Hao Yang*a  

* Corresponding authors

a Ministry of Education Key Laboratory of Analysis and Determination for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry & Chemical Engineering, Department of Chemistry, Fuzhou University, Fuzhou, China
E-mail: jjsun@fzu.edu.cn, hhyang@fzu.edu.cn
Fax: +86 591 22866135
Tel: +86 591 22866135

Abstract

We report the visual detection of Al3+ using unlabeled gold nanoparticles (AuNPs) based on the complexation of Al3+ with citric acid, resulting in the aggregation of AuNPs. The distinction of color change can be observed by the naked eye at concentrations down to 1.0 μM which is lower than the permissable level (7.4 μM) for drinking water as defined by the World Health Organization.

Graphical abstract: Rapid visual detection of aluminium ion using citrate capped gold nanoparticles

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Article information

DOI
https://doi.org/10.1039/C2AN35129C
Article type
Communication
Submitted
28 Jan 2012
Accepted
29 Feb 2012
First published
01 Mar 2012

Analyst, 2012,137, 2021-2023

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Rapid visual detection of aluminium ion using citrate capped gold nanoparticles

S. Chen, Y. Fang, Q. Xiao, J. Li, S. Li, H. Chen, J. Sun and H. Yang, Analyst, 2012, 137, 2021 DOI: 10.1039/C2AN35129C

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