Sensors (Dec 2007)

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

  • Jaume Veciana,
  • Pedro Molina,
  • Alberto Tárraga,
  • Imma Ratera,
  • Antonio Caballero,
  • César Díez-Gil

DOI
https://doi.org/10.3390/s7123481
Journal volume & issue
Vol. 7, no. 12
pp. 3481 – 3488

Abstract

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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.

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