Analysis of the atmosphere at enterprises producing high-temperature superconducting materials

被引：0
|
作者：
Zolotovitskaya, ES
Trubaeva, TN
机构：
来源：
INDUSTRIAL LABORATORY | 1995年 / 61卷 / 06期
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D O I：
暂无
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A method of atomic-emission spectrographic determination of Bi, Cu, Pb, Y, Sr, and Ba in air with preliminary aerosol accumulation on an AFA-KhP-20 filter is described. The filter was processed with dilute H2SO4, dried, and calcined with graphite powder present. The method enables determination of(mg per m(3) of air) 1 x 10(-3) of Y, 2 x 10(-3) of Bi, Ba, Pb and Sr, and 5 x 10(-3) of Cu. These values are lower than the maximum permissible concentrations for these elements.
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页码：324 / 325
页数：2
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