title: Heterogeneous colorimetric sensor for mercuric salts.
abstract: A novel chemical sensor for the colorimetric detection of mercuric salts is described. The sensor is based on a mesoporous nanocrystalline TiO2 film sensitised with a ruthenium dye; immersion of this film in an aqueous solution of Hg2+ results in a rapid colorimetric response, with both a high selectivity and a sub-micromolar sensitivity.
authors.affiliation: Department of Chemistry, Imperial College London, South Kensington, London SW7 2AY, UK. e.palomares@imperial.ac.uk
authors.forename: Emilio
authors.initials: E
authors.lastname: Palomares
authors.forename: Ramón
authors.initials: R
authors.lastname: Vilar
authors.forename: James R
authors.initials: JR
authors.lastname: Durrant