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Solvent extraction of dithiocarbamate complexes for determination of trace elements in environmental samples

Thesis/Dissertation ·
OSTI ID:7240627
Several new dithiocarbamate extraction methods were developed to preconcentrate trace elements from natural waters and from biological samples. These methods provide a simple way to extend the useful working ranges of atomic absorption spectrometry and neutron activation analysis by eliminating the interfering matrix species. The proposed methods first extract trace elements as dithiocarbamate complexes into chloroform, followed by back-extraction with a Hg(II) or Pb(II) solution. The Hg(II) and Pb(II) back-extractions are much more efficient than the conventional acid back-extraction. The extraction conditions of Cd, Co, Cu, Fe, Mn, Ni, Pb, Zn, Au, Hg, Ga, Cr, Sb, As, Se, and Te were investigated.
Research Organization:
Idaho Univ., Moscow (USA)
OSTI ID:
7240627
Country of Publication:
United States
Language:
English

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