DETERMINATION OF MICROQUANTITIES OF HAFNIUM IN REES

Authors
GORSKI B KARAMIAN SA OGANESSIAN YT BOGOMOLOV SL
Citation
B. Gorski et al., DETERMINATION OF MICROQUANTITIES OF HAFNIUM IN REES, Journal of radioanalytical and nuclear chemistry, 170(2), 1993, pp. 353-358
Citations number
5
Categorie Soggetti
Chemistry Analytical","Nuclear Sciences & Tecnology","Chemistry Inorganic & Nuclear
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
170
Issue
2
Year of publication
1993
Pages
353 - 358
Database
ISI
SICI code
0236-5731(1993)170:2<353:DOMOHI>2.0.ZU;2-E
Abstract
A method for the determination of Hf in an Yb matrix using the reactio n Hf-176(alpha, 3n)177W is described. The excitation function of this reaction was measured and the He-4 ion energy of 36 MeV was chosen. 17 7W was determined by gamma-spectrometry after chemical isolation by me ans of extraction chromatography with tri-n-butyl phosphate. Calibrati on measurements were carried out with known quantities of (nat)Hf. The sensitivity limit obtained was at the level of 3 . 10(-8) g/g. The Hf admixtures in (nat)Yb and Yb-176 samples were estimated quantitativel y.