Preparation of 228Ra standard solution

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F16%3A%230001110" target="_blank" >RIV/00177016:_____/16:#0001110 - isvavai.cz</a>

Result on the web

<a href="http://www.ncbi.nlm.nih.gov/pubmed/26651171" target="_blank" >http://www.ncbi.nlm.nih.gov/pubmed/26651171</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apradiso.2015.11.062" target="_blank" >10.1016/j.apradiso.2015.11.062</a>

Result language

angličtina

Original language name

Preparation of 228Ra standard solution

Original language description

For the preparation of a standard solution of 228Ra, 228Ra was isolated from 232Th salt. Two simple methods were developed for Th?Ra separation. Both are based on a very good solubility of thorium nitrate in organic solvents. The first one used Ra co-precipitation with Pb in the form of Pb(NO3)2 from acetic acid solution. The second method was based on solvent extraction, remaining Th in the organic phase, while Ra was concentrated in the aqueous phase. The activity of 228Ra (up to 20 kBq) in the standard solution was related to the 232Th standard by means of gamma ray spectrometry measurement. The obtained uncertainty was less than 0.7% (k=1). The standard solution was free of 232Th and contained the carrier in the usual concentration (1 g L-1 BaCl2,10 g L-1 HCl).

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BG - Nuclear, atomic and molecular physics, accelerators

OECD FORD branch

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Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Radiation and Isotopes

ISSN

0969-8043

e-ISSN

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Volume of the periodical

2016

Issue of the periodical within the volume

109

Country of publishing house

GB - UNITED KINGDOM

Number of pages

4

Pages from-to

222-225

UT code for WoS article

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EID of the result in the Scopus database

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