Cloud point preconcentration and flame atomic absorption spectrometry: application to the determination of manganese in milk and water samples

  • Alireza Rezaie Rod
  • Shahin Borhani
  • Farzaneh Shemirani
Original Paper

DOI: 10.1007/s00217-005-0248-y

Cite this article as:
Rod, A.R., Borhani, S. & Shemirani, F. Eur Food Res Technol (2006) 223: 649. doi:10.1007/s00217-005-0248-y

Abstract

Cloud point extraction has been used for preconcentration of trace amount of manganese. The analyte was complexed with 1-(2-pyridylazo)-2-naphtol (PAN) and Triton X-114 was added as surfactant. After phase separation, based on the cloud point of the mixture, and dilution of the surfactant-rich phase with methanol, the enriched analyte was determined by flame atomic absorption spectrometry. After optimization of the complexation and extraction conditions, enhancement factor of 49.1 was obtained. The detection limit was 0.39 ng ml−1 for manganese. The proposed method was applied to the determination of manganese in milk and water samples.

Keywords

Cloud point Manganese Extraction Preconcentration: milk 

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • Alireza Rezaie Rod
    • 1
  • Shahin Borhani
    • 1
  • Farzaneh Shemirani
    • 2
  1. 1.Department of ChemistryFaculty of Chemical Engineering, University of AmirkabirTehranIran
  2. 2.Department of ChemistryFaculty of Science, University of TehranTehranIran