SEPARATION OF THE ELEMENTS ACTINIUM TO AMERICIUM BY PAPER CHROMATOGRAPHY

Journal Article · Sun Apr 01 04:00:00 EST 1962 · J. Chromatog.

DOI:https://doi.org/10.1016/S0021-9673(01)86463-3· OSTI ID:4829199

Keller, C

A separation of the elements actinium to americium (atomic numbers 89 to 95) by paper chromatography is described. Alcohol- acid mixtures of various concentrations are used as eluents. In order to determine the position of the ions on the paper chromatograms, assay, autoradiographic and colorimetric techniques are used. The valency of plutonium and neptunium deposited on the paper chromatogram is determined after separation by co-precipitation reactions. The influence of the acidity of the eluents on the separation of the elements actinium - thorium- plutonium and americium is investigated more closely. With methanol- hydrochloric acid as eluent the trivalent and the tetravalent actinide elements show a minimum R/sub F/ value at a 2: 1 methanol: hydrochloric acid ratio. Pu/sup 239/ was detected by paper chromatography in a uranium solution that had been irradiated and then stored for a considerable time. With thorium as an example it is shown that a quantity of substance exceeding 10/sup -10/ g per paper chromatogram is necessary for obtaining a constant R/sub F/ value. With a smaller amount of thorium the R/sub F/ value decreases. (auth)

• Research Organization: Technische Hochschule, Karlsruhe; Institut fur Radiochemie, Kernforschungszentrum, Karlsruhe, Ger.
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-020340
• OSTI ID: 4829199
• Journal Information: J. Chromatog., Journal Name: J. Chromatog. Vol. Vol: 7
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

ACIDITY
ACIDS
ACTINIDES
ACTINIUM
ALCOHOLS
AMERICIUM
CHEMISTRY
CHROMATOGRAPHY
COLOR
HYDROCHLORIC ACID
LEACHING
METHANOL
NEPTUNIUM COMPOUNDS
PAPER
PLUTONIUM
PLUTONIUM 239
PLUTONIUM COMPOUNDS
PRECIPITATION
QUANTITATIVE ANALYSIS
RADIO WAVES
RADIOAUTOGRAPHY
SEPARATION PROCESSES
THORIUM