The adaptation of a piezo-optical gas sensing system to detect copper ions in aqueous solution

Wright, John D. and Higginson, Neil A. C. (2004) The adaptation of a piezo-optical gas sensing system to detect copper ions in aqueous solution. Sensors and Actuators B: Chemical, 99 (1). pp. 134-140. ISSN 0925-4005. (The full text of this publication is not available from this repository)

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Official URL
http://dx.doi.org/10.1016/j.snb.2003.11.007

Abstract

A piezo-optical gas sensing system has been adapted to detect copper(II) ions in aqueous solution at pH 6.5 by using a thin polymer-bound film of powdered sol-gel silica doped with eriochrome cyanine R (ECR). Effects of varying ECR concentration, immersion time in the test solution, drying time and copper(H) concentration have been studied. The system permits rapid and inexpensive field measurements of copper(II) concentrations between 0.01 mM (0.6ppm) and 0.5 mM (30ppm) in water at pH 6.5, to an accuracy better than +/-20%.

Item Type: Article
Additional information: 13 ELSEVIER SCIENCE SA 820OH
Uncontrolled keywords: piezo-optical sensor; copper(II); eriochrome cyanine R; sol-gel
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: Maggie Francis
Date Deposited: 03 Oct 2008 14:36
Last Modified: 25 Jun 2014 13:56
Resource URI: http://kar.kent.ac.uk/id/eprint/10812 (The current URI for this page, for reference purposes)
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