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Issue 9, 2012
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Rapid visual detection of aluminium ion using citrate capped gold nanoparticles

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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


Submitted
28 Jan 2012
Accepted
29 Feb 2012
First published
01 Mar 2012

Analyst, 2012,137, 2021-2023
Article type
Communication

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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