Article
Rapid-Response and Highly Sensitive Noncross-Linking Colorimetric Nitrite Sensor Using 4-Aminothiophenol Modified Gold Nanorods
Analytical Chemistry
Document Type
Article
Disciplines
Publication Date
5-1-2010
DOI
10.1021/ac902924p
Abstract
A novel colorimetric nitrite ion sensor was developed utilizing 4-aminothiophenol (4-ATP) modified gold nanorods (GNR). In the presence of nitrite ions, the deamination reaction was induced by heating the 4-ATP modified GNR in ethanol solution, resulting in the reduction of the GNR surface charges, which led to aggregation of GNRs and a colorimetric response that was quantitatively correlated to the concentration of nitrite ions. This simple assay was rapid (≤10 min) and highly sensitive (<1 ppm of nitrite), and it can be used for rapid monitoring of drinking water quality.
Access
Open
Copyright Owner
American Chemical Society
Copyright Date
2010
Language
en
File Format
application/pdf
Citation Information
Nan Xioa and Chenxu Yu. "Rapid-Response and Highly Sensitive Noncross-Linking Colorimetric Nitrite Sensor Using 4-Aminothiophenol Modified Gold Nanorods" Analytical Chemistry Vol. 82 Iss. 9 (2010) p. 3659 - 3663 Available at: http://works.bepress.com/chenxu_yu/3/
Posted with permission from Analytical Chemistry 82 (2010): 3659–3663, doi:10.1021/ac902924p. Copyright 2010 American Chemical Society.