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2011 | 9 | 3 | 410-414

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SERS approach for Zn(II) detection in contaminated soil


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Soil contamination by metals is a common problem encountered in many industrialized countries. In this work we present a new approach for heavy metals detection by using surface-enhanced Raman scattering (SERS) spectroscopy. Zn(II) can be clearly determined by SERS in contaminated soil by using 4-(2-pyridylazo) resorcinol (PAR) as chelating molecule for the metal ion. The SERS spectra of PAR, of its metal chelates and of the soil extract-PAR mixture were recorded using a hydroxylamine reduced silver colloid. An excellent match of the PAR-contaminated soil extracts SERS spectrum to the Zn(PAR)2 SERS spectrum can be observed, demonstrating the presence of Zn(II) in the soil probes. Density functional theory (DFT) based calculations were also performed for a reliable assignment of SERS spectra.










Physical description


1 - 6 - 2011
22 - 3 - 2011


  • Babeş-Bolyai University
  • University of Agricultural Sciences and Veterinary Medicine
  • Babeş-Bolyai University
  • Babeş-Bolyai University
  • Babeş-Bolyai University
  • Babeş-Bolyai University


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