A fluorescence lifetime sensor for Cu(I) ions

Authors
Rolinski, OJ Birch, DJS
Citation
Oj. Rolinski et Djs. Birch, A fluorescence lifetime sensor for Cu(I) ions, MEAS SCI T, 10(2), 1999, pp. 127-136
Citations number
24
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
MEASUREMENT SCIENCE & TECHNOLOGY
ISSN journal
09570233 → ACNP
Volume
10
Issue
2
Year of publication
1999
Pages
127 - 136
Database
ISI
SICI code
0957-0233(199902)10:2<127:AFLSFC>2.0.ZU;2-V
Abstract
We have developed a new approach to selectively detecting copper(I) ions in aqueous solutions with a detection limit down to 0.1 ppb. The concentratio n of Cu(I) ions is determined from the change in fluorescence decay of pery lene caused by energy transfer to the complex of Cu(I) ions with a chelatin g agent, 2,9-dimethyl-4,7-diphenyl-1, 10-phenanthroline. Complex formation and energy transfer in two different sensor matrixes, porous Nafion 117 fil m and Amberlite resin, are discussed.