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Sensors 2007, 7(12), 3481-3488; doi:10.3390/s7123481
Article

Naked-eye and Selective Detection of Mercury (II) Ions in Mixed Aqueous Media Using a Cellulose-based Support

1, 2, 1, 2, 2,*  and 1,*
1 Institut de Ciència de Materials de Barcelona (CSIC)-CIBER-BBN, Campus Universitari, 08193 Bellaterra, Catalonia, Spain 2 Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain
* Authors to whom correspondence should be addressed.
Received: 8 November 2007 / Accepted: 20 December 2007 / Published: 21 December 2007
(This article belongs to the Special Issue Molecular Recognition and Sensors, Including Molecular Imprinting)
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Abstract

A test paper for high-selectivity detecting Hg2+ ions in mixed acetonitrile-watersolutions has been achieved using a bis(ferrocenyl) azine, as chromogenic chemosensormolecule, and a solid cellulose fibre, as a substrate. Depending on the amount of mercuryions in contact with the detecting molecule a spectacular color change in the celluloseindicator is produced, being possible to determine the concentration of Hg2+ ions either bynaked eye or spectroscopically.
Keywords: mercury (II) ions detection; bis(ferrocenyl) azine; chromogenic chemosensor; cellulose–based probe mercury (II) ions detection; bis(ferrocenyl) azine; chromogenic chemosensor; cellulose–based probe
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Díez-Gil, C.; Caballero, A.; Ratera, I.; Tárraga, A.; Molina, P.; Veciana, J. Naked-eye and Selective Detection of Mercury (II) Ions in Mixed Aqueous Media Using a Cellulose-based Support. Sensors 2007, 7, 3481-3488.

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