NEUTRON-ACTIVATION ANALYSIS OF LITHIUM-NIOBATE

被引：3

作者：

VERMA, R

ARUNACHALAM, J

GANGADHARAN, S

机构：

[1] Analytical Chemistry Division, Bhabha Atomic Research Centre, Bombay, 400 085, Trombay

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-LETTERS | 1992年 / 164卷 / 05期

关键词：

D O I：

10.1007/BF02164956

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A radiochemical neutron activation analysis procedure for the determination of Ta, W, Ir, Pt, Au, Cu, Cr, Co and Zn in lithium niobate has been developed. The method involves a one-step removal of radioactive nuclides of Nb, Ta and W representing the dominating radioactivity of the irradiated sample. After irradiation, the sample is fused with inactive carriers and Na2O2 in a nickel crucible. The fused cake is dissolved in HCl-H2O2 and Nb, Ta and W are homogeneously precipitated. The impurities are separated by combinations of precipitation and ion-exchange separations for precise gamma-ray measurements with an overall chemical yield of 70% to 90%. The results are discussed.

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页码：327 / 335

页数：9

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