CARRIER-FREE ESTIMATION OF RU-106 IN URINE

Authors
PRASAD MVR SURYANARAYANA DS JEEVANRAM RK
Citation
Mvr. Prasad et al., CARRIER-FREE ESTIMATION OF RU-106 IN URINE, Journal of radioanalytical and nuclear chemistry, 178(2), 1994, pp. 399-406
Citations number
17
Categorie Soggetti
Chemistry Analytical","Nuclear Sciences & Tecnology","Chemistry Inorganic & Nuclear
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
178
Issue
2
Year of publication
1994
Pages
399 - 406
Database
ISI
SICI code
0236-5731(1994)178:2<399:CEORIU>2.0.ZU;2-7
Abstract
A simple carrier-free method has been developed for estimating 0.1 to 1.1 Bq of Ru-106 in urine. The organic matter present in urine samples was completely destroyed by wet ashing using nitric acid-peroxide mix ture in presence of sulfuric acid. Ruthenium was oxidized to tetroxide using potassium periodate and allowed to react in-situ with polyethyl ene powder. The powder was separated, washed, pelletized and its beta- activity was counted. Recovery of Ru-106 is found to be better than 80 % with a minimum detection limit of 0.2 Bq/dm3 which is less than the DRL value specified by International Commission on Radiological Protec tion (ICRP).