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Design of a micro-fluidic sensor for high sensitivity Copper (II) sensing applications

journal contribution
posted on 2023-05-16, 22:53 authored by Gibson, C, Byrne, P, Gray, D, MacCraith, B, Paull, B, Tyrrell, EC
An all-plastic micro-sensor system for remote measurement of copper (II) ions in the aqueous environment has been developed. The sensing structure was designed for ease of milling and fabricated in poly (methyl methacrylate) (PMMA) using a hot-embossing technique. Issues of sealing the structure were studied extensively and an efficient protocol has been established. The detection system comprises a compact photo-multiplier tube and integrated photon counting system. This method has advantages of low sample volume, (creating a minimal volume of waste), low exposure to contaminants due to the closed system, no moving parts and employs a robust polymer material which is resistant to the environment of intended use. The sensor operates on the principle of flow injection analysis and has been tested using a chemiluminescence (FIA-CL) reaction arising from the complexation of copper with 1,10-phenanthroline and subsequent oxidation by hydrogen peroxide.

History

Publication title

Proceedings of SPIE

Volume

4876

Pagination

615-622

ISSN

0277-786X

Department/School

School of Natural Sciences

Publisher

SPIE

Place of publication

Ireland

Rights statement

© 2003 COPYRIGHT SPIE--The International Society for Optical Engineering.

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the chemical sciences

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