Heterogeneous colorimetric sensor for mercuric salts

被引:163
作者
Palomares, E [1 ]
Vilar, R [1 ]
Durrant, JR [1 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AY, England
关键词
D O I
10.1039/b314138a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
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.
引用
收藏
页码:362 / 363
页数:2
相关论文
共 12 条
[1]   A sensor for the determination of electropositive elements [J].
Brainina, KZ ;
Stozhko, NY ;
Shalygina, ZV .
JOURNAL OF ANALYTICAL CHEMISTRY, 2002, 57 (10) :945-949
[2]   FLUOROMETRIC CHEMODOSIMETRY - MERCURY(II) AND SILVER(I) INDICATION IN WATER VIA ENHANCED FLUORESCENCE SIGNALING [J].
CHAE, MY ;
CZARNIK, AW .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (24) :9704-9705
[3]   Coloured electrochromic windows based on nanostructured TiO2 films modified by adsorbed redox chromophores [J].
Cinnsealach, R ;
Boschloo, G ;
Rao, SN ;
Fitzmaurice, D .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1999, 57 (02) :107-125
[4]   Coupling selectivity with sensitivity in an integrated chemosensor framework:: Design of a Hg2+-responsive probe, operating above 500 nm [J].
Descalzo, AB ;
Martínez-Máñez, R ;
Radeglia, R ;
Rurack, K ;
Soto, J .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (12) :3418-3419
[5]   Photoelectrochemical cells [J].
Grätzel, M .
NATURE, 2001, 414 (6861) :338-344
[6]   Heterosupramolecular chemistry [J].
Marguerettaz, X ;
Merrins, A ;
Fitzmaurice, D .
JOURNAL OF MATERIALS CHEMISTRY, 1998, 8 (10) :2157-2164
[7]  
MEYER RL, 2003, 222 ACS NAT M NEW OR
[8]  
PALOMARES E, 2003, IN PRESS ADV FUNCT M
[9]   A dip-and-read test strip for the determination of mercury(II) ion in aqueous samples based on urease activity inhibition [J].
Shi, GQ ;
Jiang, GB .
ANALYTICAL SCIENCES, 2002, 18 (11) :1215-1219
[10]   Photoelectrochemical study of Zn cytochrome-c immobilised on a nanoporous metal oxide electrode [J].
Topoglidis, E ;
Campbell, CJ ;
Palomares, E ;
Durrant, JR .
CHEMICAL COMMUNICATIONS, 2002, (14) :1518-1519