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Author Geddes, Chris D. ♦ Douglas, Peter
Source CiteSeerX
Content type Text
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Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Hydrophilic Copolymer ♦ Fluorescent Dye ♦ Aqueous Halide ♦ John Wiley Son ♦ Aqueous Medium ♦ Sensor Film ♦ Alkaline Ph ♦ Halide-sensitive Fluorophores ♦ Dye Fluorescence ♦ Aqueous Bromide ♦ Resultant Sensor Film ♦ Appl Polym Sci ♦ Thin Film ♦ Shelf Life ♦ Response Time ♦ Halide Ion
Abstract ABSTRACT: A range of halide-sensitive fluorophores were bound to two hydrophilic copolymers. Thin films of the copolymers swelled in the aqueous media, allowing dye fluorescence to be dynamically quenched by the diffusion of halide ions. The resultant sensor films were characterized in terms of their hydrophilicity, sensitivity, and selec-tivity toward halide. The sensor films were reversibly capable of determining aqueous bromide and iodide at a mildly alkaline pH with typical 90 % response times of 30–70 s and a shelf life in excess of 2 years. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 76:
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article