title: A fast response membrane-based pH indicator optode.
abstract: A cellulose acetate based optode membrane containing 4-dimethylamino-4'-octylazobenzene as an acid-base indicator is described. Other essential components of the membrane for a fast-responding and durable sensor are diethyl phthalate, triethyleneglycol and potassium tetrakis(4-chlorophenyl)borate. Factors affecting the sensor behaviour are discussed and an application in a flow-cell is demonstrated.
authors.affiliation: Centre for Scientific Instrumentation, La Trobe University, Bundoora, Victoria 3083, Australia.
authors.forename: T J
authors.initials: TJ
authors.lastname: Cardwell
authors.forename: R W
authors.initials: RW
authors.lastname: Cattrall
authors.forename: L W
authors.initials: LW
authors.lastname: Deady
authors.forename: M
authors.initials: M
authors.lastname: Dorkos
authors.forename: G R
authors.initials: GR
authors.lastname: O'Connell