THORIUM AND URANIUM DETERMINATIONS IN ACRYLIC BY NEUTRON-ACTIVATION ANALYSIS

被引：14

作者：

JAGAM, P ^{[1
]}

WANG, JX ^{[1
]}

SIMPSON, JJ ^{[1
]}

机构：

[1] UNIV GUELPH,DEPT PHYS,GUELPH N1G 2W1,ONTARIO,CANADA

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1993年 / 171卷 / 02期

关键词：

D O I：

10.1007/BF02219853

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Improvements in the detection limits of thorium and uranium in acrylics by neutron activation analysis are described. The average of results from 10 g samples was found to be higher than the results from 450 g samples taken from the same acrylic sheet. Using eighteen large (450 g) samples from a single sheet of acrylic gave an average value of 3.2 +/- 0.3 pg/g thorium and 1.1 +/- 0.7 pg/g uranium. Interpretation of the results is discussed. Epithermal neutron activation with Cd shielded irradiations did not improve the detection sensitivity for thorium.

引用

页码：277 / 286

页数：10

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