Non-covalently functionalized graphene for the potentiometric sensing of zinc ions

The possibility of the application of non-covalently functionalized graphene as a sensing membrane for the potentiometric determination of zinc ions was examined. A graphene carboxylic derivative was functionalized with 1-(2-pyridylazo)-2-naphthol, the Zn 2+ ions complexing ligand, simply by adsorpt...

Full description

Saved in:
Bibliographic Details
Published in:Analyst (London) 2012-04, Vol.137 (8), p.1895-1898
Main Authors: Jaworska, Ewa, Lewandowski, Wiktor, Mieczkowski, Jzef, Maksymiuk, Krzysztof, Michalska, Agata
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemistry
Derivatives
Detection
Electrochemical methods
Exact sciences and technology
General, instrumentation
Graphene
Ligands
Selectivity
Sensors
Zinc
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The possibility of the application of non-covalently functionalized graphene as a sensing membrane for the potentiometric determination of zinc ions was examined. A graphene carboxylic derivative was functionalized with 1-(2-pyridylazo)-2-naphthol, the Zn 2+ ions complexing ligand, simply by adsorption of ligand molecules due to interactions. This approach has resulted in a potentiometric sensor characterized with significant selectivity for Zn 2+ ions present in solution. Preliminary results on a novel approach allowing the utilization of a highly selective zinc ion ligand in the presence of alkali metals ions to yield potentiometric Zn 2+ sensors are reported.
ISSN:0003-2654
1364-5528
DOI:10.1039/c2an16016a