Development of optical test strip for rapid determination of trace arsenic using immobilized gallocyanine

Citation

Yusof, Nor Azah and Rashid, Khairunnisa (2009) Development of optical test strip for rapid determination of trace arsenic using immobilized gallocyanine. Asian Journal of Chemistry, 21 (3). pp. 1747-1753. ISSN 0970-7077; ESSN: 0975-427X

Abstract

Irreversible test strip for the determination of arsenic has been developed. It has a rectangular sensing zone containing all the reagents necessary to produce a selective response to arsenic and formed by immobilized gallocyanine inside chitosan membrane. This method offer sensitivity and simplicity in detecting arsenic as no prior treatment or extraction is required. A linear response was attained in the arsenic concentration in the range of 10 to 30 ppm with calculated limit of detection of 0.96 ppm. This method also showed a reproducible result with relative standard deviation (RSD) of 0.87% and response time of ~5min. Interference studies showed that Pb(II) and Ni(II) significantly interfered during the determination. The developed sensor has been validated against Atomic Absorption Spectroscopy method and proven comparable.

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Additional Metadata

Item Type:	Article
Divisions:	Faculty of Science
Publisher:	Chemic Publishing Company
Keywords:	Arsenic detection; Optical test strip; Immobilized chitosan membrane
Depositing User:	Nurul Ainie Mokhtar
Date Deposited:	18 Jun 2015 05:56
Last Modified:	04 Nov 2015 02:47
URI:	http://psasir.upm.edu.my/id/eprint/14033
Statistic Details:	View Download Statistic

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