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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, ECAn 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 SPIEVolume
4876Pagination
615-622ISSN
0277-786XDepartment/School
School of Natural SciencesPublisher
SPIEPlace of publication
IrelandRights statement
© 2003 COPYRIGHT SPIE--The International Society for Optical Engineering.Repository Status
- Restricted