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Spectrofluorimetric determination of arsenic(III) using dansylated peptide

Abdull Manap, Mohd Rashidi and Yusof, Nor Azah and Mohd Nor, Siti Mariam and Ahmad, Faujan (2013) Spectrofluorimetric determination of arsenic(III) using dansylated peptide. Asian Journal of Chemistry, 25 (8). pp. 4195-4198. ISSN 0970-7077

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Abstract

The potential of dansylated peptide in determination of arsenic(III) was investigated. Fluorescence intensity of dansyl-D-Ala-Gly-OH (DAG) was quenched during addition of arsenic(III) in aqueous solution. The fluorescence spectrum of DAG was measured at pH 12 with excitation and emission wavelengths of 331 nm and 524 nm. Limit of detection of arsenic(III) by DAG is 0.15 μM. The presence of foreign ions at 1:1 molar ratio of arsenic(III)-interfering ions did not have significant effect on determination of arsenic(III). The developed detection method was also applied on analysis of electroplating waste samples.

Item Type:Article
Keyword:Fluorescent chemosensor; Dipeptide; As(III); Quenching.
Faculty or Institute:Faculty of Science
Institute of Advanced Technology
Publisher:Chemic Publishing Company
ID Code:30162
Deposited By: Umikalthom Abdullah
Deposited On:04 Jul 2014 08:39
Last Modified:21 Sep 2015 08:16

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