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Separation of metal ions using a polymeric reversed-phase column and a Methylthymol Blue containing mobile phase

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Paull, B and Nurdin, M and Haddad, PR and Nesterenko, PN (1998) Separation of metal ions using a polymeric reversed-phase column and a Methylthymol Blue containing mobile phase. Analytical Communications, 35 (1). pp. 17-20. ISSN 1359-7337

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Abstract

A polystyrene–divinylbenzene reversed-phase column has been used in conjunction with a mobile phase containing methylthymol blue for the separation and visible detection of Mn2+, Zn2+, Cd2+ and Pb2+ in the presence of excess concentrations of matrix metals. Retention is due to the formation of a dynamically coated chelating stationary phase and is dependent upon mobile phase pH and ligand concentration. The method showed a different selectivity when compared to a pre-coated Methylthymol Blue chelating column and offers improved separation efficiency. Detection limits for Zn2+ and Pb2+ of 1 µM were achieved in solutions containing up to 1 M NaCl, following the post-column addition of a pH 5.9 buffer.

Item Type: Article
Journal or Publication Title: Analytical Communications
Page Range: pp. 17-20
ISSN: 1359-7337
Identification Number - DOI: 10.1039/a708203g
Additional Information:

© 1998 Royal Society of Chemistry

Date Deposited: 12 Nov 2008 23:53
Last Modified: 18 Nov 2014 03:53
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