A flow-through optical fibre reflectance sensor for the detection of lead ion based on immobilised gallocynine

Citation

Yusof, Nor Azah and Ahmad, Musa (2003) A flow-through optical fibre reflectance sensor for the detection of lead ion based on immobilised gallocynine. Sensors and Actuators B: Chemical, 94 (2). pp. 201-209. ISSN 0925-4005; eISSN: 1873-3077

Abstract

A flow-through spectrophotometric sensor for the determination of lead at trace level using immobilised gallocynine as the reagent phase is proposed. Gallocynine is physically adsorbed onto XAD-7. This method provided a wide linear range of 1 × 10-1 to 1 × 103 ppm and detection limit of 0.06 ppm. This method also showed a reproducible result with relative standard deviation (R.S.D.) of 1.64% and response time of ∼5 min. The response towards lead was also reversible using acidified KNO3 as the regenerating solution. Interference studies showed that Hg(II) and Ag(I) significantly interfered during the determination.

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Additional Metadata

Item Type:	Article
Divisions:	Faculty of Science and Environmental Studies
DOI Number:	https://doi.org/10.1016/s0925-4005(03)00344-7
Publisher:	Elsevier
Keywords:	Flow injection analysis (FIA); Lead detection; Optical fibre sensor
Depositing User:	Ms. Zaimah Saiful Yazan
Date Deposited:	07 Mar 2025 01:41
Last Modified:	07 Mar 2025 01:41
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/s0925-4005(03)00344-7
URI:	http://psasir.upm.edu.my/id/eprint/112425
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