http://dx.doi.org/10.1002/elan.200900283">
 

Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

Electrogenerated chemiluminescence sensor based on tris(2,2′-bipyridine)ruthenium(II)-immobilized natural clay and ionic liquid

Language

English

Abstract

A novel electrogenerated chemiluminescence (ECL) sensor based on natural clay and ionic liquid was fabricated. Tris(2,2'-bipyridine)ruthenium(II) (Ru(bpy)3 2+) was immobilized on natural clay surface through simple adsorption. An ECL sensor was prepared by mixing Ru(bpy)3 2+-incorporated clay, graphite powder and an ionic liquid (1-butyl-3-methylimidazolium hexafluorophosphate) as the binder. The electrochemical behavior and ECL of the immobilized Ru(bpy)3 2+ was investigated. It was observed that the ECL of immobilized Ru(bpy)3 2+ was activated by the ionic liquid. The proposed ECL sensor showed high sensitivity to tri-n-propylamine (TPrA) and the detection limit was found to be 20 pM. In addition, the ECL sensor displayed good stability for TPrA detection and long-term storage stability. © 2010 Wiley-VCH Verlag GmbH&Co. KGaA, Weinheim.

Keywords

ECL sensor, Ionic liquids, Natural clay, Ru(bpy)3 2+, Sensors

Publication Date

2010

Source Publication Title

Electroanalysis

Volume

22

Issue

2

Start Page

204

End Page

208

Publisher

Wiley-VCH Verlag

ISSN (print)

10400397

ISSN (electronic)

15214109

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