DETERMINATION OF MICROQUANTITIES OF HAFNIUM IN REES

被引：4

作者：

GORSKI, B ^{[1
]}

KARAMIAN, SA ^{[1
]}

OGANESSIAN, YT ^{[1
]}

BOGOMOLOV, SL ^{[1
]}

机构：

[1] DUBNA JOINT NUCL RES INST,FLEROV LAB NUCL REACT,DUBNA 141980,RUSSIA

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1993年 / 170卷 / 02期

关键词：

D O I：

10.1007/BF02041470

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method for the determination of Hf in an Yb matrix using the reaction 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. 177W was determined by gamma-spectrometry after chemical isolation by means of extraction chromatography with tri-n-butyl phosphate. Calibration 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 quantitatively.

引用

页码：353 / 358

页数：6