Development of an optical fibre reflectance sensor for copper (II) detection based on immobilised salicylic acid

Rita Sundari, Musa Ahmad, Yook Heng Lee

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Immobilized salicylic acid onto XAD-2 (styrene-divinylbenzene cross-linked copolymer) has been attempted in this study as a reagent phase for the development of an optical fibre copper (II) sensor. The measurements were carried out at a given wavelength of 690.27 nm since it yielded the largest divergence different in reflectance spectra before and after reaction with the analyte element. The optimum response was obtained at pH 5.0. The linear dynamic range of Cu(II) was found within the concentration range of 1.0-2.0 mmol L -1 with its LOD of 0.5 mmol L -1. The sensor response from different probes (n = 9) gave an R.S.D. of 8.4% at 0.55 mmol L -1 Cu(II). The effect of interfered ions at 1:1 molar ratio of Cu(II):foreign ion was also studied in this work.

Original languageEnglish
Pages (from-to)201-206
Number of pages6
JournalSensors and Actuators, B: Chemical
Volume113
Issue number1
DOIs
Publication statusPublished - 17 Jan 2006

Fingerprint

Salicylic acid
divinyl benzene
Salicylic Acid
Optical fibers
Copper
optical fibers
Ions
reflectance
copper
acids
Styrene
sensors
Sensors
styrenes
dynamic range
reagents
copolymers
divergence
ions
Copolymers

Keywords

  • Cu(II)
  • Immobilised salicylic acid
  • Optical fibre
  • Reflectance
  • XAD-2

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

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abstract = "Immobilized salicylic acid onto XAD-2 (styrene-divinylbenzene cross-linked copolymer) has been attempted in this study as a reagent phase for the development of an optical fibre copper (II) sensor. The measurements were carried out at a given wavelength of 690.27 nm since it yielded the largest divergence different in reflectance spectra before and after reaction with the analyte element. The optimum response was obtained at pH 5.0. The linear dynamic range of Cu(II) was found within the concentration range of 1.0-2.0 mmol L -1 with its LOD of 0.5 mmol L -1. The sensor response from different probes (n = 9) gave an R.S.D. of 8.4{\%} at 0.55 mmol L -1 Cu(II). The effect of interfered ions at 1:1 molar ratio of Cu(II):foreign ion was also studied in this work.",
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N2 - Immobilized salicylic acid onto XAD-2 (styrene-divinylbenzene cross-linked copolymer) has been attempted in this study as a reagent phase for the development of an optical fibre copper (II) sensor. The measurements were carried out at a given wavelength of 690.27 nm since it yielded the largest divergence different in reflectance spectra before and after reaction with the analyte element. The optimum response was obtained at pH 5.0. The linear dynamic range of Cu(II) was found within the concentration range of 1.0-2.0 mmol L -1 with its LOD of 0.5 mmol L -1. The sensor response from different probes (n = 9) gave an R.S.D. of 8.4% at 0.55 mmol L -1 Cu(II). The effect of interfered ions at 1:1 molar ratio of Cu(II):foreign ion was also studied in this work.

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