Broad range pH sensor based on sol-gel entrapped indicators on fibre optic Dong, S en_US Luo, M en_US Peng, Gang-Ding en_US Cheng, W en_US 2021-11-25T14:07:07Z 2021-11-25T14:07:07Z 2008 en_US
dc.description.abstract A broad-range fibre optic pH sensor based on evanescent wave absorption is presented in this paper. This sensor is prepared by immobilizing a mixture of three pH sensitive indicators (dyes): cresol red, bromophenol blue and chlorophenol red onto the unclad fibre surface using a sol-gel cladding technology. Triton is introduced into the sol-gel cladding to improve the cladding quality. Smooth and strong sol-gel cladding with entrapped indicators and triton has been fabricated and observed using a scanning electron microscope (SEM), an energy dispersive X-ray detector (EDX) and an atomic force microscopy (AFM). The pH sensor based the cladding has shown a linear, reversible and repeatable response over a broad range of pH values between 4.5 and 13.0. (C) 2007 Elsevier B.V. All rights reserved. en_US
dc.identifier.issn 0925-4005 en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.title Broad range pH sensor based on sol-gel entrapped indicators on fibre optic en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.identifier.doiPublisher en_US
unsw.relation.faculty Engineering
unsw.relation.ispartofjournal Sensors and Actuators B - Chemical en_US
unsw.relation.ispartofpagefrompageto 94-98 en_US
unsw.relation.ispartofvolume 129 en_US
unsw.relation.originalPublicationAffiliation Dong, S en_US
unsw.relation.originalPublicationAffiliation Luo, M en_US
unsw.relation.originalPublicationAffiliation Peng, Gang-Ding, Electrical Engineering & Telecommunications, Faculty of Engineering, UNSW en_US
unsw.relation.originalPublicationAffiliation Cheng, W en_US School of Electrical Engineering and Telecommunications *
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