caa a22 4500 445879394 CHVBK 20180317145537.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00604-010-0506-y doi (NATIONALLICENCE)springer-10.1007/s00604-010-0506-y Voltammetric determination of cadmium (II) based on a composite film of a thiol-functionalized mesoporous molecular sieve and an ionic liquid [Elektronische Daten] [Jing Guo, Yueping Luo, Fei Ge, Yonglan Ding, Junjie Fei] A composite film made from a thiol-functionalized mesoporous molecular sieve and an ionic liquid is introduced for use in a voltammetric sensor for Cd(II). The electrode exhibits excellent sensitivity towards Cd(II) in showing a markedly increased stripping peak current. Following the optimization of the experimental parameters, a linear response is obtained in the concentration range from 29nM to 0.87mM of Cd(II). The detection limit is as low as 1.0nM (at S/N = 3) after an accumulation at −1.1V for 4min. The method was successfully applied to determine Cd(II) in water samples. Features such as large electroactive area, fast electron transfer and low background current make this electrode a promising platform for fabricating reliable electrochemical sensors for various species, such as heavy metals and environmental pollutants. Figure Linear sweep voltammograms of 0.5 μM Cd(II) in 0.1 M HAc-NaAc buffer (pH 5.5), 100 mV s−1 at: (a) bare GCE; (b) ILs film coated GCE; (c) P123-SH/ILs/GCE Springer-Verlag, 2010 Cadmium nationallicence Mesoporous molecular sieve nationallicence Ionic liquids nationallicence Chemically modified electrode nationallicence Stripping voltammetry nationallicence Guo Jing Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, 411105, Xiangtan, Hunan, People's Republic of China aut Luo Yueping Hunan Environmental Monitoring Centre, 410004, Changsha, Hunan, People's Republic of China aut Ge Fei College of Chemical Engineering, Xiangtan University, 411105, Xiangtan, Hunan, People's Republic of China aut Ding Yonglan Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, 411105, Xiangtan, Hunan, People's Republic of China aut Fei Junjie Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, 411105, Xiangtan, Hunan, People's Republic of China aut Microchimica Acta Springer Vienna 172/3-4(2011-03-01), 387-393 0026-3672 172:3-4<387 2011 172 604 https://doi.org/10.1007/s00604-010-0506-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-010-0506-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Guo Jing Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, 411105, Xiangtan, Hunan, People's Republic of China aut NATIONALLICENCE 700 1- Luo Yueping Hunan Environmental Monitoring Centre, 410004, Changsha, Hunan, People's Republic of China aut NATIONALLICENCE 700 1- Ge Fei College of Chemical Engineering, Xiangtan University, 411105, Xiangtan, Hunan, People's Republic of China aut NATIONALLICENCE 700 1- Ding Yonglan Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, 411105, Xiangtan, Hunan, People's Republic of China aut NATIONALLICENCE 700 1- Fei Junjie Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, 411105, Xiangtan, Hunan, People's Republic of China aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 172/3-4(2011-03-01), 387-393 0026-3672 172:3-4<387 2011 172 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer