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Spectrophotometric determination of trace Arsenic (III) ion based on complex formation with gallocyanine


Citation

Yusof, Nor Azah and Omar, Zainab (2009) Spectrophotometric determination of trace Arsenic (III) ion based on complex formation with gallocyanine. Pertanika Journal of Science & Technology, 17 (1). pp. 53-59. ISSN 0128-7680

Abstract / Synopsis

In this study, a simple, selective and sensitive method, for spectrophotometric determination of As(III) with gallocyanine as the sensitive reagent was developed. The wavelength of an analytical measurement, for the determination of As (III), using gallocyanine was at 630nm with an optimum response at pH 2. The RSD for the reproducibility of 100 ppm As(III) was 2.3%. The LOD was 0.04 ppm with linear dynamic range in As(III) concentration of 0.2 - 1.5 ppm. The developed method has been validated against Atomic AbsorptionSpectrophotometry (AAS). The interference study of several metal ions was carried out andit revealed that that Mn (II) ion was interfered the most.


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Additional Metadata

Item Type: Article
Subject: Arsenic
Subject: Spectrophotometry
Divisions: Faculty of Science
Publisher: Universiti Putra Malaysia Press
Keywords: Gallocyanine; Arsenic determination; Metal toxicity
Depositing User: Najwani Amir Sariffudin
Date Deposited: 18 Feb 2013 13:12
Last Modified: 04 Nov 2015 12:00
URI: http://psasir.upm.edu.my/id/eprint/16811
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