对ⅡA组阳离子分析实验的改进

Improvement on analytical experiment of cation in group ⅡA

着重对ⅡA组阳离子的分析实验步骤进行了改进,简化了实验步骤,缩短了分析时间,避免了Cd^(2+)的漏检和Bi^(3+)的过度检出。

Improvement on analytical steps of cation in group II A was conducted in this article. Experimental steps were simplified and analytical time was shortened. Meanwhile overchesk of Bi3 + and miss-check of Cd2+ were avoided.