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Title: Colorimetric chemodosimeter based on diazonium-gold-nanoparticle complexes for sulfite ion detection in solution
Authors: Du, Jianjun
Shao, Qi
Yin, Shengyan
Jiang, Lin
Ma, Jan
Chen, Xiaodong
Issue Date: 2012
Source: Du, J., Shao, Q., Yin, S., Jiang, L., Ma, J., & Chen, X. (2012). Colorimetric Chemodosimeter Based on Diazonium-Gold-Nanoparticle Complexes for Sulfite Ion Detection in Solution. Small, 8(22), 3412-3416.
Series/Report no.: Small
Abstract: A fast and simple colorimetric detection system for sulfite, based on diazonium–gold-nanoparticle(AuNP) complexation, has high selectivity and sensitivity in aqueous media. The positively charged diazonium has affinity for the AuNP surface due to an electrostatic effect, which prevents AuNPs from aggregating in highly saline solutions. Upon addition of sulfite, the AuNPs are free to aggregate due to the formation of a neutral and insoluble phenylhydrazine derivative.
ISSN: 1613-6810
DOI: 10.1002/smll.201201650
Rights: © 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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