摘要
水样用盐酸酸化后,用Fe(OH)_3沉淀富集^(210)Po,在0.2—0.5mol/L盐酸介质中70℃时在铜或银片上自镀3h,在低水下α测量仪上测量。全程回收率>95％,对<5×10^(-4)Bq/L的自来水,相对均方差<±20％。
After the water sample is acidified with HCl, the ^(210)Po is concentrated by Fe(OH)_3. In HCl solution of 0.2—0.5mol/L the ^(210)Po is spontaneous deposition on Cu or Ag discs for 3 hours at the temperature of 70℃, then it is determined by the low level a counting system.The overall recovery is more than 95%. For the drinking water samples of <5×10^(-4)Bq/L, the relative standard devtation is less than ±20%.
出处
《铀矿地质》
CSCD
北大核心
1989年第3期187-191,共5页
Uranium Geology
