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Published on: June 1, 2012
A polymer membrane potentiometric sensor for silver
M R Bates1, T J Cardwell, R W Cattrall
1Centre for Scientific Instrumentation, School of Chemistry, La Trobe University, Bundoora, Vic. 3083, Australia.
Abstract:
Four new sulfur-containing compounds based on pyridine, benzene, 1,8-naphthyridine and 1,10-phenanthroline have been synthesized. These molecules have been incorporated into a polymeric matrix as neutral carriers and evaluated as silver sensors. Two of the compounds (pyridine and benzene) show high selectivity for Ag(+). The sensor with the pyridine-based compound, in particular, shows near-Nernstian response and good sensitivity towards Ag(+) with a short response time (<10s), making it ideal for use in flow analysis.
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