Separation of radioactive strontium from natural samples by means of mixed-solvent anion exchange

Owing to the low level of strontium-90 activity in most natural samples, large sample quantities are required for analysis. Thus, it was necessary to isolate a small quantity of strontium from a large sample with simultaneous separation of calcium and other interfering cations. A method was develope...

Full description

Saved in:
Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 1995-01, Vol.189 (1), p.141-146
Main Authors: Grahek, Ž., Lulić, S., Košutić, K., Eškinja, I., Cerjan, Š., Kvastek, K.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Owing to the low level of strontium-90 activity in most natural samples, large sample quantities are required for analysis. Thus, it was necessary to isolate a small quantity of strontium from a large sample with simultaneous separation of calcium and other interfering cations. A method was developed using anion exchange chromatography (Amberlite CG-400) and nitric acid in methanol as eluent for calcium. Strontium-90 was determined using a low-level beta-counter after elution with water, scavenging steps and strontium carbonate precipitation. The method was validated using International Atomic Energy Agency (IAEA) standard reference samples and water samples where strontium-90 concentrations were previously determined by the standard IAEA procedure. This method avoided the use of fuming nitric acid whilst achieving a simple separation of radioactive strontium in natural samples.
ISSN:0236-5731
1588-2780
DOI:10.1007/BF02040192