Wright, J.D. and Higginson, N.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.
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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: | 14 Jan 2010 14:41 |
| Resource URI: | http://kar.kent.ac.uk/id/eprint/10812 (The current URI for this page, for reference purposes) |
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