Quantitative separation of bismuth from lead, cadmium, and other elements by anion exchange chromatography with hydrobromic acid-nitric acid elution

Journal Article · Tue Sep 01 04:00:00 EDT 1981 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00234a021· OSTI ID:6261877

Strelow, F W.E.; van der Walt, T N

Trace amounts and up to 20 mg of bismuth can be separated from up to several grams of Cd, Pb(II), Zn, In, Ga Fe(III), Al, Mn(II), Ni(II), Cu(II), U(VI), and many other elements by eluting these elements with 2 M nitric acid-0.03 M hydrobromic acid from a column containing only 1 g (2.9 mL) of AG1-X4 anion exchange resin of 200 to 400 mesh particle size. The retained bismuth is effectively eluted with 0.05 M diethylenetriaminepentaacetic acid (DPTA) in 0.1 M ammonium nitrate of pH 4.5. Separation factors are very large (> 1000) and separations sharp and quantitative. About 0.8 ..mu..g of cadmium and 4 ..mu..g of lead are found in the bismuth fraction when approximately 600 mg and 4 g, respectively, are present originally. Only Hg(II) and Au(III) and some platinum metals accompany bismuth. Silver precipitates as insoluble bromide.

• Research Organization: National Chemical Research Lab., Pretoria, South Africa
• OSTI ID: 6261877
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 53:11; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ACTINIDES
ALUMINIUM
AMINO ACIDS
AMMONIUM COMPOUNDS
AMMONIUM NITRATES
ANIONS
BISMUTH
CADMIUM
CARBOXYLIC ACIDS
CHARGED PARTICLES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
COPPER
DATA
ELEMENTS
ELUTRIATION
EXPERIMENTAL DATA
GALLIUM
HYDROBROMIC ACID
HYDROGEN COMPOUNDS
INDIUM
INFORMATION
INORGANIC ACIDS
ION EXCHANGE CHROMATOGRAPHY
IONS
IRON
LEAD
MANGANESE
METALS
NICKEL
NITRATES
NITRIC ACID
NITROGEN COMPOUNDS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PH VALUE
POLYMERS
QUANTITATIVE CHEMICAL ANALYSIS
RESINS
SEPARATION PROCESSES
TRANSITION ELEMENTS
URANIUM
ZINC