Sorption of uranium on freshly prepared hydrous titanium oxide and its utilization in determination of U-236 using accelerator mass spectrometry

Autor(en)

I. Spendlikova, Mojmir Nemec, P. Steier, G. Keceli

Abstrakt

The determination of

²³⁶U with accelerator mass spectrometry (AMS) requires efficient separation methods with high concentration factors. The article proposes an alternative method of uranium separation from aqueous solutions to commonly used iron co-precipitation. This “homogeneous precipitation” is based on unique properties of fresh hydrous titanium oxide, prepared by hydrolysis of its organic precursor—tetra-n-butylorthotitanate—directly in the aqueous sample solution. Besides high uranium uptake, the results shows very promising properties of this uranium-titanium oxide precipitate for

²³⁶U-AMS measurements providing up to 4 times higher negative ion yield comparing with common uranium oxide matrix.

Organisation(en)

Isotopenphysik

Externe Organisation(en)

Czech Technical University in Prague (CTU), Istanbul University

Journal

Journal of Radioanalytical and Nuclear Chemistry

Band

311

Seiten

447-453

Anzahl der Seiten

7

ISSN

0236-5731

DOI

https://doi.org/10.1007/s10967-016-5013-0

Publikationsdatum

01-2017

Peer-reviewed

Ja

ÖFOS 2012

103014 Kernphysik, 104020 Radiochemie

Schlagwörter

ASJC Scopus Sachgebiete

Public Health, Environmental and Occupational Health, Analytical Chemistry, Pollution, Radiology Nuclear Medicine and imaging, Spectroscopy, Health, Toxicology and Mutagenesis, Nuclear Energy and Engineering

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/f5fd6b53-6745-4ab9-a047-5739e293fe4b