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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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400100* -- Analytical & Separations Chemistry
400102 -- Chemical & Spectral Procedures
ABSORPTION SPECTROSCOPY
ACTIVATION ANALYSIS
ANTIMONY
BIOLOGICAL MATERIALS
CADMIUM
CARBAMIC ACID ESTERS
CARBOXYLIC ACID ESTERS
CATIONS
CHARGED PARTICLES
CHEMICAL ANALYSIS
CHROMIUM
COBALT
COMPLEXES
COPPER
DATA
DITHIOLS
ELEMENTS
ESTERS
EXPERIMENTAL DATA
EXTRACTION
GALLIUM
GOLD
HYDROGEN COMPOUNDS
INFORMATION
INTERFERING ELEMENTS
IONS
IRON
LEAD
MANGANESE
MATERIALS
MERCURY
METALS
NICKEL
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
REAGENTS
REMOVAL
SEMIMETALS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTROSCOPY
TELLURIUM
THIOLS
TRACE AMOUNTS
TRANSITION ELEMENTS
WATER
ZINC
400100* -- Analytical & Separations Chemistry
400102 -- Chemical & Spectral Procedures
ABSORPTION SPECTROSCOPY
ACTIVATION ANALYSIS
ANTIMONY
BIOLOGICAL MATERIALS
CADMIUM
CARBAMIC ACID ESTERS
CARBOXYLIC ACID ESTERS
CATIONS
CHARGED PARTICLES
CHEMICAL ANALYSIS
CHROMIUM
COBALT
COMPLEXES
COPPER
DATA
DITHIOLS
ELEMENTS
ESTERS
EXPERIMENTAL DATA
EXTRACTION
GALLIUM
GOLD
HYDROGEN COMPOUNDS
INFORMATION
INTERFERING ELEMENTS
IONS
IRON
LEAD
MANGANESE
MATERIALS
MERCURY
METALS
NICKEL
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
REAGENTS
REMOVAL
SEMIMETALS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTROSCOPY
TELLURIUM
THIOLS
TRACE AMOUNTS
TRANSITION ELEMENTS
WATER
ZINC