火焰原子吸收法测定氰化镀银液中的铜和铁

Determination of Copper and Iron in Silver Cyanide Liquor by Flame Atomic Absorption Spectrophotometry

提出了用火焰原子吸收光谱法测定氰化镀银液中铜、铁含量的方法 ,在测定条件下 ,其他共存元素均无干扰。该方法的相对标准偏差为铜 1.92 %— 2 .63%、铁 3.13%— 3.73% ,样品加标回收率为铜 96.8%—10 1.6%、铁 97.5 %— 10 1.1%

The concentration of copper and iron in silver cyanide liquor were determined by the method of flame atomic absorption spectrophotometry.By this method,there were no interference from the other coexistent elements.The relative standard deviation for Cu and Fe is 1.92%-2.63% and 3.13%_3.73%,respectively.The recovery rate for Cu and Fe is 96.8%-101.6% and 97.5%_101.1%,respectively.