CONSIDERATIONS OF ACIDIFYING WATER SAMPLES FOR TC-99 ANALYSIS

被引：1

作者：

BLANCHARD, RL ^{[1
]}

LIEBERMAN, R ^{[1
]}

RICHARDSON, WS ^{[1
]}

WAKAMO, CL ^{[1
]}

机构：

[1] AUBURN UNIV, DEPT PHYS SCI, MONTGOMERY, AL USA

来源：

HEALTH PHYSICS | 1993年 / 65卷 / 02期

关键词：

TC-99; SAMPLING; ENVIRONMENTAL ASSESSMENT; MONITORING; WATER;

D O I：

10.1097/00004032-199308000-00014

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Environmental water samples are routinely acidified before radionuclide analysis to prevent adsorption of radionuclides on the container walls. This study addresses the concern for volatilizing Tc-99 from acid solutions during evaporation before beta analysis has been addressed. Water samples can be acidified to pH 1.7 with nitric acid and evaporated to dryness on planchets without significant losses of technetium due to volatilization. However, the planchets should not be flamed unless a detergent is used, and control samples should be flamed to determine the loss of activity under the conditions used.

引用

页码：214 / 215

页数：2