Fibre optic reflectance sensor for the determination of aluminium(III) in aqueous environment

Musa Ahmad, Ramaier Narayanaswamy

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

An optical Al(III) sensor based on the use of Eriochrome cyanine R (ECR) immobilised on XAD-2 (styrene-divinylbenzene cross-linked copolymer) and diffuse reflectance spectrophotometry has been developed. A kinetic approach was used to quantify sensor response to Al(III) concentration in which the reflectance signal is measured at a fixed time interval of 3 min. Reproducible measurement of Al(III) was possible using the same probe (R.S.D. = 1.8%). Linear response was obtained for Al(III) concentration 1.3 × 10-5-4.0 × 10-4 M with limit of detection of 1.0 × 10-5 M of the metal ion. The sensor was also used for the determination of Al(III) in aqueous samples and the results obtained were comparable to those obtained by graphite furnace atomic absorption spectrometry.

Original languageEnglish
Pages (from-to)255-260
Number of pages6
JournalAnalytica Chimica Acta
Volume291
Issue number3
DOIs
Publication statusPublished - 20 Jun 1994
Externally publishedYes

Fingerprint

divinyl benzene
Styrene
Graphite
Spectrophotometry
fiber optics
Aluminum
Fiber optics
Limit of Detection
Spectrum Analysis
reflectance
aluminum
Metals
Ions
sensor
Sensors
Atomic absorption spectrometry
spectrophotometry
graphite
Metal ions
spectrometry

Keywords

  • Aluminium
  • Fibre optic reflectance sensor
  • Sensors

ASJC Scopus subject areas

  • Biochemistry
  • Analytical Chemistry
  • Spectroscopy
  • Environmental Chemistry

Cite this

Fibre optic reflectance sensor for the determination of aluminium(III) in aqueous environment. / Ahmad, Musa; Narayanaswamy, Ramaier.

In: Analytica Chimica Acta, Vol. 291, No. 3, 20.06.1994, p. 255-260.

Research output: Contribution to journalArticle

Ahmad, Musa ; Narayanaswamy, Ramaier. / Fibre optic reflectance sensor for the determination of aluminium(III) in aqueous environment. In: Analytica Chimica Acta. 1994 ; Vol. 291, No. 3. pp. 255-260.
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