Saeed, FA; Evans, JRG; (2010) Measurement of diffuse reflectance from combinatorial samples. ANAL CHIM ACTA , 677 (1) 79 - 89. 10.1016/j.aca.2010.07.007.
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Using a luminescence spectrometer as a platform, a system of fibre-optic probes was created that allows full colour characterisation, fluorescence and phosphorescence spectra to be recorded in diffuse reflectance and in transmission from thick or thin film arrays of combinatorial samples of diameter down to 2 mm and from liquids. An integrating sphere is not required and the method is more versatile than the instrument's fibre-optic plate reader which has conjoined fibre bundles set at a fixed angle. Incident and detected light is routed via separate optical fibre bundles which remain stationary above or below a two-axis table. The validation and calibration are described. A library of 25 members was scanned for both diffuse reflectance (colour) and fluorescence in less than an hour. The method thus combines techniques that conventionally rely on different instruments and makes them amenable for high throughput libraries. (C) 2010 Elsevier B.V. All rights reserved.
|Title:||Measurement of diffuse reflectance from combinatorial samples|
|Keywords:||High throughput, Combinatorial, Colour measurement, Fluorescence, Diffuse reflectance, PHOTOCATALYTIC DEGRADATION, TITANIUM-DIOXIDE, ORGANIC POLLUTANTS, TIO2, OXIDATION, WATER, SYSTEMS, PHENOL, OXYGEN, DYES|
|UCL classification:||UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry|
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