Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 216, Issue -, Pages 504-510Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2015.04.054
Keywords
MIL-100(Cr); Simultaneous determination; Heavy metal ions; Square wave anodic stripping voltammetry
Funding
- science and technology key project of Fujian [2013H0053]
- Nature Science Foundation of Fujian [2012J06005]
- key laboratory of urban environment and health, institute of urban environment, Chinese Academy of Sciences [KLUEH201305]
- fund of innovation team from Minnan Normal University
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A metal-organic frameworks (MOFs), cauli?ower-like MIL-100(Cr), has been facilely prepared through simple reflux method for the first time and characterized by XRD, FT-IR, SEM and XPS. The MOFs was found to be useful for the simultaneous and selective electrochemical detection of microgram Cd(II), Pb(II), Cu(II), and Hg(II) in aqueous solution. The detection was performed by the square wave anodic stripping voltammetry (SWASV). The MIL-100(Cr) modified electrode showed an excellent selectivity and stability for Cd2+, Pb2+, Cu2+, Hg2+ determinations. The electrochemical properties and applications of the modified electrode were studied. Operational parameters such as pH, deposition potential and deposition time were optimized for the purpose of determination of traces of metal ions. (C) 2015 Elsevier B.V. All rights reserved.
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