Dithiocarbamate extraction for gallium from natural waters and from biological samples for neutron activation analysis

Journal Article · Sat Sep 01 04:00:00 EDT 1984 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00273a035· OSTI ID:5880580

Yu, J C; Wai, C M

Traces of gallium in aqueous solution can be extracted with a mixture of pyrrolidinecarbodithioate and diethyldithiocarbamate in the pH range 4-6 into chloroform. Gallium in the organic phase can be back-extracted into the aqueous phase with a lead nitrate solution for neutron activation analysis (NAA). This two-step extraction process provides a large preconcentration factor for gallium and eliminates potential interferences from the matrix species and other metals present in natural water and biological samples. Because lead is insensitive to NAA, its presence in the final solution does not cause any interferences for gallium determination. By use of this extraction method and NAA, a detection limit of 10/sup -3/ ..mu..g/L gallium in water can be achieved.

• Research Organization: Univ. of Idaho, Moscow
• OSTI ID: 5880580
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 56:9; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101* -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
400102 -- Chemical & Spectral Procedures
ACTIVATION ANALYSIS
AQUEOUS SOLUTIONS
BARYON REACTIONS
BIOLOGICAL MATERIALS
CHEMICAL ANALYSIS
DATA
DISPERSIONS
ELEMENTS
EXPERIMENTAL DATA
EXTRACTION
GALLIUM
GROUND WATER
HADRON REACTIONS
HYDROGEN COMPOUNDS
INFORMATION
MATERIALS
METALS
MIXTURES
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
WATER