Determination of metal ion concentrations by SERS using 2,2’-bipyridyl complexes

Docherty, Julie and Mabbott, Samuel and Smith, W. Ewen and Reglinski, John and Faulds, Karen and Davidson, Christine and Graham, Duncan (2015) Determination of metal ion concentrations by SERS using 2,2’-bipyridyl complexes. Analyst, 140 (19). pp. 6538-6543. ISSN 0003-2654

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    Abstract

    Surface enhanced Raman scattering (SERS) can generate characteristic spectral “fingerprints” from metal complexes, thus providing the potential for the development of methods of analysis for the identification and quantitation of a range of metal ions in solution. The advantages include sensitivity and the use of one ligand for several metals without the need for a specific chromophore. Aqueous solutions of Fe(II), Ni(II), Zn(II), Cu(II), Cr(III) and Cd(II) in the presence of excess 2,2′-bipyridyl (bipy) were analysed using SERS. Specific marker bands enabled the identification of each metal ion and the limit of detection for each metal ion was estimated. Two of the ions, Zn(II) and Cu(II), could be detected below the World Health Organisation's (WHO) recommended limits for drinking water at levels of 0.22 and 0.6 mg L−1, respectively.

    Creators(s): Docherty, Julie ORCID logoORCID: https://orcid.org/0000-0003-0687-2638, Mabbott, Samuel ORCID logoORCID: https://orcid.org/0000-0003-4926-5467, Smith, W. Ewen, Reglinski, John ORCID logoORCID: https://orcid.org/0000-0002-0263-4168, Faulds, Karen ORCID logoORCID: https://orcid.org/0000-0002-5567-7399, Davidson, Christine ORCID logoORCID: https://orcid.org/0000-0002-8045-3530 and Graham, Duncan ORCID logoORCID: https://orcid.org/0000-0002-6079-2105;
    Item type:Article
    ID code:54140
    Keywords:surface enhanced Raman scattering, metal complexes, metal ion solutions, Chemistry, Biochemistry, Spectroscopy, Environmental Chemistry, Analytical Chemistry, Electrochemistry
    Subjects:Science > Chemistry
    Department:Faculty of Science > Pure and Applied Chemistry
    Technology and Innovation Centre > Bionanotechnology
    Depositing user: Pure Administrator
    Date deposited:02 Sep 2015 14:52
    Last modified:26 Oct 2020 03:44
    URI:https://strathprints.strath.ac.uk/id/eprint/54140
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