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Fabrication of a highly selective and sensitive CrO4 sensor based on a N,N'Bis(salicylidene)ethylenediaminocobolt(II)hydrate.


Citation

Kassim, Anuar and Rezayi, Majid and Ahmad Zadeh, Saeed and Tan, Wee Tee and Yusof, Nor Azah and Lee, Yook Heng (2009) Fabrication of a highly selective and sensitive CrO4 sensor based on a N,N'Bis(salicylidene)ethylenediaminocobolt(II)hydrate. Malaysian Journal of Chemistry, 11 (1). pp. 19-25. ISSN 1511-2292

Abstract / Synopsis

In this work a membrane was prepared by use of N,N′Bis(salicylidene) ethylenediamino cobalt(II) hydrate (Co(SALEN)2) as an ion carrier, polyvinylchloride (PVC) as matrix, and 2-nitrophenyl octyl ether (2NPOE) as a plasticizer for an ion-selective electrode used in the measurement of CrO42-anions in solution. The amounts of (Co(SALEN)2) and PVC were optimized in the preparation of the membrane. The response of the electrode was Nernstian within the concentration range 1.0 × 10-6 to 1.0 × 10-1 M. This sensor displays a drift in Nernstian response for this anion changes with the amount of ionophore and PVC. The effects of various parameters such as pH, different anion interferences, the amounts of ionophore and PVC and time on response of the coated ion-selective electrode were investigated. The response of the fabricated electrode at concentration range from 1.0× 10-6 to 1.0× 10-1 M is linear with a Nernstian slope of -28.33 mV.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Publisher: Institut Kimia Malaysia
Keywords: Ion-slective electrode; Chromate (II) anion; N,N'Bis(salicylidence) ethylenediamino cobalt(II) hydrate.
Depositing User: Muizzudin Kaspol
Date Deposited: 02 May 2014 12:35
Last Modified: 28 Sep 2015 09:42
URI: http://psasir.upm.edu.my/id/eprint/14687
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