Fluorescence-based thin plastic film ion-pair sensors for oxygen


Autoria(s): Mills, Andrew; Thomas, M.
Data(s)

1997

Resumo

A general method of preparation of thin-film sensors for O-2, incorporating the dye ion-pair tris(4,7-diphenyl-1,10-phenanthroline) rutheninm(II) ditetraphenylborate, in a variety of different thin film polymer/plasticizer matrices is described, The sensitivity of the sensor depends upon the nature of the polymer matrix and plasticizer, A detailed study of one of these systems utilising the polymer poly(methyl methacrylate), PMMA, is reported. The sensitivity of this O-2 sensor depends markedly upon the plasticizer concentration and is largely independent of temperature (24,5-52.5 degrees C) and age (up to 30 d), When exposed to an alternating atmosphere of O-2 and N-2, a typical oxygen film sensor in PMMA exhibits a 0-90% response and recovery time of 0.4 and 4.5 s, respectively.

Identificador

http://pure.qub.ac.uk/portal/en/publications/fluorescencebased-thin-plastic-film-ionpair-sensors-for-oxygen(7b848f2a-e160-4450-9c0b-c40658aea519).html

Idioma(s)

eng

Direitos

info:eu-repo/semantics/restrictedAccess

Fonte

Mills , A & Thomas , M 1997 , ' Fluorescence-based thin plastic film ion-pair sensors for oxygen ' Analyst , vol 122 , pp. 63-68 .

Tipo

article