Separation of a Multitracer from an Au Target Irradiated with High-Energy Heavy Ions by Means of a Supported Liquid Membrane

The transport of Au(III) and 19 other metal ions through a tributyl phosphate (TBP)-decalin membrane supported on a microporous polytetrafluoroethylene sheet was studied in order to establish a procedure for removing Au(III) ions from acid solutions of a gold target irradiated by high-energy heavy i...

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Bibliographic Details
Published inAnalytical Sciences Vol. 12; no. 2; pp. 219 - 224
Main Authors AMBE, Shizuko, IWAMOTO, Masako, MAEDA, Haruka, AMBE, Fumitoshi
Format Journal Article
LanguageEnglish
Published Tokyo The Japan Society for Analytical Chemistry 10.04.1996
Japan Society for Analytical Chemistry
Japan Science and Technology Agency
Subjects
Au(III)
Chemistry
Exact sciences and technology
Inorganic chemistry and origins of life
Isotopes and labelled compounds chemistry
metal ion
multitracer
Preparations and properties
Supported liquid membrane
TBP-decalin
transport
Tracer technique
Gold Ions
Chemical transport
Tetrafluoroethylene polymer
Irradiation
Liquid membrane
Radioisotope
Recovery
Heavy atom
Acidic solution
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Summary:The transport of Au(III) and 19 other metal ions through a tributyl phosphate (TBP)-decalin membrane supported on a microporous polytetrafluoroethylene sheet was studied in order to establish a procedure for removing Au(III) ions from acid solutions of a gold target irradiated by high-energy heavy ions, leaving a multitracer solution in a carrier-and salt-free state. Distilled water was used as a stripping agent. A feed solution of 3mol dm-3 HCl gave the highest transport rate in the 0.1-8mol dm-3 HCl range. The transport of carrier-free radioisotopes of Sc, Fe, Zr, Nb, Te, and Hf was observed for 8mol dm-3 HCl and that of Fe, Zr, Nb, and Te for 5 and 6mol dm-3 HCl, while their transport was not detected for 0.1 and 1mol dm-3 HCl feed solutions and was small with 3mol dm-3 HCl. The 3mol dm-3 HCl solution is considered to be the best feed solution for preparing a multitracer from an Au target, because of the large transport rate of Au(III) and the negligible transport of other elements. The transport rates of Au(III) ions from 0.2-2mol dm-3 HNO3 solutions are smaller than those from 1-6mol dm-3 HCl. On the basis of these observations, a practical procedure was established for preparing a multitracer solution from a heavy-ion-irradiated Au target.
ISSN:0910-6340
1348-2246
DOI:10.2116/analsci.12.219