Journal of Radioanalytical Chemistry

, Volume 20, Issue 2, pp 443–453 | Cite as

A highly selective diethyldithiocarbamate extraction system in activation analysis of copper, indium, manganese and zinc

Application to the analysis of standard reference materials
  • V. Ravnik
  • M. Dermelj
  • L. Kosta


A versatile separation system based on the extraction of dithiocarbamates and applicable to the determination of copper, managanese, zinc and indium in a wide selection of materials by activation analysis is described. After the dissolution of the sample and a few simple operations which eliminate specific interferences, depending upon the material (e. g. sodium and gold in the NBS Standard Reference Glasses), carbamates are extracted under specific conditions by addition of appropriate complexing agents and selective stripping. Extreme separation factors permit interference-free counting using a sodium iodide detector. For example, indium is separated from a hundred thousand fold excess of manganese in the determination of the two elements in Orchard Leaves. Results are also presented for all four elements in Bowen's Kale, NBS Bovine Liver, and for Cu, In and Mn in the 0.02 ppm and 1 ppm SRM glasses.


Dithizone Ammonium Citrate Orchard Leave Hydrate Antimony Pentoxide Kjeldahl Flask 
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Copyright information

© Akadémiai Kiadó 1974

Authors and Affiliations

  • V. Ravnik
    • 1
  • M. Dermelj
    • 1
  • L. Kosta
    • 1
  1. 1.J. Stefan Institute and Faculty of Natural Sciences and TechnologyUniversity of Ljubljana(Yugoslavia)

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