Advertisement

Czechoslovak Journal of Physics

, Volume 56, Supplement 4, pp D151–D157 | Cite as

Simultaneous low-level determination of iodine and manganese in biological materials by radiochemical neutron activation analysis

  • J. Kučera
  • J. Mizera
  • U. Repinc
  • B. Smodiš
Article

Abstract

A new RNAA procedure was developed for simultaneous determination of low levels of I and Mn in biological materials. The procedure is based on sample decomposition by alkaline-oxidative fusion in a mixture of Na2O2 + NaOH at 900°C followed by extraction of elementary iodine by chloroform. Subsequently, Mn is separated either by precipitation of hydrated MnO2 or by extraction of the Mn-diethyldithiocarbamate complex in chloroform. The accuracy of the RNAA procedure developed was proven by analysis of several low-level biological reference materials. Detection limits of I and Mn achievable in both institutes and the degree of interference for the Mn determination due to 56Fe(n,p)56Mn reaction with fast neutrons are discussed.

Keywords

HPGe Detector Radiochemical Neutron Activation Analysis Elementary Iodine Fusion Cake Stefan Institute 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. [1]
    Kučera J. and Zeisler R.: J. Radioanal. Nucl. Chem. 262 (2004) 255.CrossRefGoogle Scholar
  2. [2]
    Kučera J., Iyengar G. V., Řanda Z., and Parr R.M.: J. Radioanal. Nucl. Chem. 259 (2004) 505.CrossRefGoogle Scholar
  3. [3]
    Kučera J., Soukal L., and Faltejsek J.: J. Radioanal. Nucl. Chem. Letters 107 (1986) 361.CrossRefGoogle Scholar
  4. [4]
    Ravnik V., Dermelj M., and Kosta L.: J. Radioanal. Chem. 20 (1974) 443.CrossRefGoogle Scholar
  5. [5]
    Repinc U. and Benedik L.: In: Proc. 11th Int. Conf. Modern Trends in Activation Analysis (MTAA-11), Guildford, University of Surrey, UK, June 20–25, 2004, J. Radioanal. Nucl. Chem. (in press).Google Scholar
  6. [6]
    Kučera J. and Krausová I.: In: Proc. 11th Int. Conf. on Modern Trends in Activation Analysis (MTAA-11), Guildford, University of Surrey, UK, June 20–25, 2004, J. Radioanal. Nucl. Chem. (in press).Google Scholar
  7. [7]
    Currie L. A.: Uncertainty in measurements close to detection limits: Detection and quantification capabilities, IAEA-TECDOC-1401, Vienna 2004, p. 9–33.Google Scholar

Copyright information

© Institute of Physics, Academy of Sciences of Czech Republic 2006

Authors and Affiliations

  • J. Kučera
    • 1
  • J. Mizera
    • 1
  • U. Repinc
    • 2
  • B. Smodiš
    • 2
  1. 1.Nuclear Physics InstituteŘež near PragueCzech Republic
  2. 2.Jožef Stefan InstituteLjubljanaSlovenia

Personalised recommendations