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

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.