A novel salicylic acid optical fibre probe fabrication

Han Chern Loh, Musa Ahmad, Mohd Nasir Taib

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Optical fibre salicylic acid (SA) sensor is fabricated based on immobilisation of ferric(III) nitrate on Dowex-50x8. SA forms a stable purple complex with immobilised Fe3+ at pH 2.1 with a response time of 10 min. The reflectance spectra of the sensor were measured by using an optical fibre spectrophotometer. The results showed this SA sensor has a maximum reflectance at 786 nm. The useful dynamic response range from 2.0 × 10-2 to 5.0 × 10-1 g/L. The complex is stable for more than 24 h. A good reproducibility (0.9%) of measurement was obtained with this probe.

Original languageEnglish
Pages (from-to)59-63
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume107
Issue number1 SPEC. ISS.
DOIs
Publication statusPublished - 27 May 2005

Fingerprint

Salicylic acid
Salicylic Acid
Optical fibers
optical fibers
Fabrication
acids
fabrication
probes
sensors
Sensors
reflectance
Spectrophotometers
spectrophotometers
dynamic response
immobilization
Nitrates
Dynamic response
nitrates

Keywords

  • Dowex-50x8
  • Ferric(III) nitrate
  • Optical fibre sensor
  • Salicylic acid

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

A novel salicylic acid optical fibre probe fabrication. / Loh, Han Chern; Ahmad, Musa; Taib, Mohd Nasir.

In: Sensors and Actuators, B: Chemical, Vol. 107, No. 1 SPEC. ISS., 27.05.2005, p. 59-63.

Research output: Contribution to journalArticle

Loh, Han Chern ; Ahmad, Musa ; Taib, Mohd Nasir. / A novel salicylic acid optical fibre probe fabrication. In: Sensors and Actuators, B: Chemical. 2005 ; Vol. 107, No. 1 SPEC. ISS. pp. 59-63.
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