Determination of metal ion concentrations by SERS using 2,2′-bipyridyl complexes
Literature Information
Publication Date
2015-08-21
DOI
10.1039/C5AN01525A
Impact Factor
4.616
Authors
Julie Docherty, Samuel Mabbott, W. Ewen Smith, John Reglinski, Karen Faulds, Christine Davidson, Duncan Graham
View Original
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.
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Analyst
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Recommended Compounds
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(3R,5R)-1-[(Benzyloxy)carbonyl]-5-methyl-3-piperidinecarboxylic acid
CAS Number:
1269757-29-0
Molecular Formula:
C15H19NO4
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