FAAS法测定硫酸中的铜、铁和锌

Determination of Copper and Iron and Zinc in Sulphuric Acid by FAAS

采用火焰原子吸收光谱法测定硫酸中铜、铁和锌,确定了最佳仪器工作条件和样品处理方法。在选择好的实验条件下,测定铜的特征浓度为0.005μg/mL/1%;铁的特征浓度为0.014μg/mL/1%吸收;锌的特征浓度为0.002μg/mL/1%吸收。回收率分别为铜97.7%—98.2%,铁98.2%—99.4%,锌96.8%—98.7%。

The amounts of copper,iron and zinc in sulphuric acid were determined by FAAS. The experimental conditions of instrument and sample digestion were optimized. The characteristic amounts are 0. 005μg/mL/1% for copper,0. 014μg/mL/1% for iron, and 0. 002μg/mL/1% for zinc. The recoveries are 97.7%-98. 2% for copper, 98.2%-99.4% for iron, 96. 8%-98.7% for zinc.