Sequential separation of ultra-trace U, Th, Pb, and lanthanides using a simple automatic system

Miyamoto, Yutaka; Yasuda, Kenichiro; Magara, Masaaki

Analyst, 140(13), p.4482 - 4488, 2015/07

https://doi.org/10.1039/C5AN00027K

Uranium, Thorium, lead, and the lanthanides were automatically and sequentially separated with a single anion-exchange column. This separation was achieved using eluents consisting of simple and highly pure acid mixture of HCl, HNO, acetic acid, and HF. This simple, automatic system is driven with pressurized nitrogen gas, and controlled by a computer program. For an evaluation examination, a reference powdered rock sample was separated by using this system. Abundances of objective elements, including 0.23 ng of lutetium, were accurately determined without corrections of chemical recovery yield or subtraction of processing blank. This separation technique saves time and effort for chemical processing, and it is useful for ultra-trace quantitative and isotopic analyses of elements in small environmental samples.

Method for separation of Cs from acid solution dissolving radionuclides and microanalysis of solution with ICP-AES

Kanazawa, Toru*; Hidaka, Akihide; Kudo, Tamotsu; Nakamura, Takehiko*; Fuketa, Toyoshi

JAERI-Tech 2004-050, 53 Pages, 2004/06

JAERI-Tech-2004-050.pdf:4.35MB

As a part of release evaluation in VEGA program, the mass balances of released and deposited FP onto the test apparatus are estimated from gamma ray measurement for acid solution leached from the apparatus, but short-life or radionuclides without emitting rays and very small quantity of elements cannot be quantified. Therefore, a microanalysis by ICP-AES is planed for acid solution leached from apparatuses. Since Cs have strong ray spectrum, they have to be removed from solution in advance to avoid contamination of ICP system and to decrease exposure to ray. The method for Cs separation using inorganic ion exchanger, AMP was applied to the test solutions. The results showed that more than 99.9% of Cs could be removed from test solution, and once removed Sb by AMP was recovered by using a complexing agent such as citric acid. The ICP-AES analysis showed that amount of U, Sr and Zr were successfully quantified. The release and deposition will be quantified through ICP-AES analysis for acid solutions from which Cs is separated by AMP or other precipitation method.

Direct evidence for enchanced inner-sphere chloro complexation of Eu(III) and Cm(III) in anion exchange resin phase studies by time-resolved laser-induced fluorescence spectroscopy

Arisaka, Makoto*; Kimura, Takaumi; Suganuma, Hideo*; Yoshida, Zenko

Radiochimica Acta, 90(4), p.193 - 197, 2002/05

https://doi.org/10.1524/ract.2002.90.4_2002.193

no abstracts in English

Fragment mass dependence of angular anisotropy in 15 MeV proton-induced fission of Pu

Tsukada, Kazuaki; Nishinaka, Ichiro; Shinohara, Nobuo; ; Nagame, Yuichiro; Sueki, Keisuke*; Nakahara, Hiromichi*; Otsuki, Tsutomu*; *

European Physical Journal A, 2(2), p.153 - 155, 1998/00

https://doi.org/10.1007/s100500050104

no abstracts in English

Decay properties of Cf

*; Shinohara, Nobuo; ; Tsukada, Kazuaki; ; Usuda, Shigekazu; ; *; Nagame, Yuichiro; Kobayashi, Yoshii; et al.

Radiochimica Acta, 72, p.39 - 43, 1996/00

https://doi.org/10.1524/ract.1996.72.1.39

no abstracts in English

Ion exchange separation of trace amounts of uranium and thorium in tantalum for neutron activation analysis

Sasaki, Yuji; Takeishi, Hideyo; Adachi, Takeo; *

Journal of Radioanalytical and Nuclear Chemistry, 139(1), p.143 - 151, 1990/00

https://doi.org/10.1007/BF02060462

no abstracts in English

Successive determination of micro quantities of titanium and aluminum in zirconium using cation exchange separation in HF-HBO media

; *; ;

Bunseki Kagaku, 33(9), p.455 - 459, 1984/00

https://doi.org/10.2116/bunsekikagaku.33.9_455

no abstracts in English

Preparation of high purity praseodymium-143 from neutron irradiated cerium oxide by cation-exchange separation

Journal of Nuclear Science and Technology, 13(9), p.492 - 496, 1976/09

https://doi.org/10.3327/jnst.13.492

no abstracts in English

Determination of trace impurities in high purity lutetium oxide by neutron activation with aid of cation-exchange separation

Journal of Nuclear Science and Technology, 11(8), p.334 - 338, 1974/08

https://doi.org/10.3327/jnst.11.334

no abstracts in English

Sequential separation of ultra-trace multi-elements including Pu

Miyamoto, Yutaka; Yasuda, Kenichiro; Magara, Masaaki

no journal, , 

The authors accomplished the development of technique for sequential separation of U, Th, Pb, and the lanthanides using a single anion-exchange column and mixed media consisting of hydrochloric acid, nitric acid, acetic acid, and hydrofluoric acid in the previous work. Composition of eluents for separation of Pu and Th was optimized to accomplish the sequential separation of multi-elements including Pu. The mixture of Pu and Th was successfully separated by a single anion exchange column with acetic acid-HCl-HF mixed-media.