A flow-cell optosensor for monitoring aluminium(III) based on immobilised eriochrome cyanine R (ECR) and reflectance spectrophotometry

Musa Ahmad, Ramaier Narayanaswamy

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

An optosensor for the determination of aluminium based on the use of eriochrome cyanine R (ECR) immobilised on XAD-2 and diffuse reflectance spectrophotometry has been developed. This system consists of a flow-cell containing the reagent phase which stimulates the distal end of the bifurcated fibre, which in turn is connected to the source lamp and detector. The response of the sensor was found to be reproducible with a response time of < 5 min, and a sensing range of 0.34-10.75 ppm Al. Fluoride solution provides a rapid method for regeneration of the sensor after reaction with aluminiu. Interferences from other ions were also studied.

Original languageEnglish
Pages (from-to)221-227
Number of pages7
JournalScience of the Total Environment
Volume163
Issue number1-3
DOIs
Publication statusPublished - 24 Feb 1995
Externally publishedYes

Fingerprint

Spectrophotometry
spectrophotometry
Aluminum
reflectance
aluminum
sensor
Monitoring
Sensors
monitoring
Fluorides
Electric lamps
fluoride
Light sources
regeneration
Ions
Detectors
ion
Fibers
fibre
method

Keywords

  • Aluminium determination
  • Eriochrome cyanine R (ECR)
  • Optical aluminium sensor

ASJC Scopus subject areas

  • Environmental Chemistry
  • Environmental Engineering
  • Pollution
  • Waste Management and Disposal
  • Environmental Science(all)

Cite this

A flow-cell optosensor for monitoring aluminium(III) based on immobilised eriochrome cyanine R (ECR) and reflectance spectrophotometry. / Ahmad, Musa; Narayanaswamy, Ramaier.

In: Science of the Total Environment, Vol. 163, No. 1-3, 24.02.1995, p. 221-227.

Research output: Contribution to journalArticle

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