It is verified through experiment that it is feasible to shield the interference of metal ions by EDTA instead of CDTA when determining SO_2 in atmosphere using spectrophotometry of pararosaniline hydrochloride. This method is convenient and economic.

  • 通过实验验证了盐酸副玫瑰苯胺分光光度法测定大气中SO2的标准方法中,用EDTA代替CDTA去掩蔽金属离子的干扰是可行的,即方便,又经济。

  • 互联网摘选 2025-01-20 17:19:19

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