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

doi:10.3390/s7123481

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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

César Díez-Gil ¹, Antonio Caballero ², Imma Ratera ¹, Alberto Tárraga ², Pedro Molina ²^,* and Jaume Veciana 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

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MDPI and ACS Style

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.

AMA Style

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(12):3481-3488.

Chicago/Turabian Style

Díez-Gil, César; Caballero, Antonio; Ratera, Imma; Tárraga, Alberto; Molina, Pedro; Veciana, Jaume. 2007. "Naked-eye and Selective Detection of Mercury (II) Ions in Mixed Aqueous Media Using a Cellulose-based Support." Sensors 7, no. 12: 3481-3488.

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