Optical fibre Al(III) sensor based on solid surface fluorescence measurement

Musa Ahmad, Ramaier Narayanaswamy

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

An optical Al(III) sensor based on the use of purpurin immobilised on XAD 4 (styrene-divinylbenzene cross-linked copolymer) and solid surface fluorescence measurement has been developed. An optical fibre attachment for the spectrofluorometer and the probe have also been designed in this study. The plot of log[Al(III)] against the sensor response was linear for Al(III) concentration in the range of 5.0×10 -5 to 3.2×10 -3M, with a limit of detection of 3.0×10 -5M. Fluoride solution was shown not to quench the complex during measurement and was used as regenerating agent to regenerate the probe. A good repeatability (1%) and reproducibility (4%) of measurement were obtained with this probe.

Original languageEnglish
Pages (from-to)259-266
Number of pages8
JournalSensors and Actuators, B: Chemical
Volume81
Issue number2-3
DOIs
Publication statusPublished - 5 Jan 2002

Fingerprint

solid surfaces
Optical fibers
divinyl benzene
optical fibers
Fluorescence
fluorescence
probes
sensors
Sensors
Styrene
Fluorides
styrenes
attachment
fluorides
copolymers
Copolymers
plots
purpurin

Keywords

  • Immobilised purpurin
  • Optical Al(III) sensor
  • XAD 4

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

Optical fibre Al(III) sensor based on solid surface fluorescence measurement. / Ahmad, Musa; Narayanaswamy, Ramaier.

In: Sensors and Actuators, B: Chemical, Vol. 81, No. 2-3, 05.01.2002, p. 259-266.

Research output: Contribution to journalArticle

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