A flow cell optosensor for lead based on immobilized gallocynin in chitosan membrane

Nor Azah Yusof, Musa Ahmad

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Gallocynin immobilized in chitosan membrane has been studied as a sensor element of an optical sensor for lead using a flowing system. By using this set up, lead in solution has been determined in the concentration range from 1.0 x 10-1 to 1.0 x 103 ppm with a detection limit of 0.075 ppm. The standard deviation of the method for the repeatability of lead detection at a concentration of 100 ppm was found to be 2.10%. The response of the sensor was reproducible and can be regenerated by using acidified saturated KNO3 solution. Interference from foreign ions was also studied at 1:1 mole ratio of Pb(II):foreign ions.

Original languageEnglish
Pages (from-to)459-466
Number of pages8
JournalTalanta
Volume58
Issue number3
DOIs
Publication statusPublished - 12 Sep 2002

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Chitosan
Ions
Membranes
Sensors
Optical sensors
Limit of Detection
Lead

Keywords

  • Chitosan membrane
  • Flow injection analysis (FIA)
  • Optical fibre
  • Pb(II) sensor

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Cite this

A flow cell optosensor for lead based on immobilized gallocynin in chitosan membrane. / Yusof, Nor Azah; Ahmad, Musa.

In: Talanta, Vol. 58, No. 3, 12.09.2002, p. 459-466.

Research output: Contribution to journalArticle

Yusof, Nor Azah ; Ahmad, Musa. / A flow cell optosensor for lead based on immobilized gallocynin in chitosan membrane. In: Talanta. 2002 ; Vol. 58, No. 3. pp. 459-466.
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