An attenuated total reflectance optrode sensor incorporating infrared-active carbonylmetal probe groups

Creaser, C. S., Hutchinson, W. E. and Stephenson, G. R. (2002) An attenuated total reflectance optrode sensor incorporating infrared-active carbonylmetal probe groups. Sensors and Actuators B: Chemical, 82 (2-3). pp. 150-157. ISSN 0925-4005

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Abstract

An optrode sensor has been constructed by coating fumed silica particles incorporating covalently attached organoironcarbonyl probe groups onto a ZnSe attenuated total reflectance (ATR) element, The sensor may be interrogated remotely using Fourier transform infrared (FTIR) spectroscopy by coupling IR transparent optical fibres to the ATR element. The organometallic probe groups act as components of a sensing system in which analyte/sensor interactions are transduced through shifts in the sharp v(CO) bands of the metal carbonyl reporting group. The potential of the device is demonstrated for pH sensing in the range 7-13 and as a sensor of solvent environment. Coating two different immobilised probe groups onto the ATR element, combined with FTIR measurement, allows the optrode to be used for the independent, multi-component sensing of two analytes. (C) 2002 Elsevier Science B.V. All rights reserved.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: Rachel Smith
Date Deposited: 08 Jun 2011 11:01
Last Modified: 21 Apr 2020 20:44
URI: https://ueaeprints.uea.ac.uk/id/eprint/32002
DOI: 10.1016/S0925-4005(01)01000-0

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