流动注射─—氢化物原子化法测定铁矿石中的砷

Determining As in Iron Ore Used of Flow Injection-Hydride Atomization Method

试样经过氧化钠熔融、水浸取，在硫酸介质中，用碘化钾和抗坏血酸将砷酸还原成亚砷酸，再以硼氢化钠作还原剂，流动注射法将亚砷酸还原成砷化氢，并以氮气作载气将砷化氢载入电热石英原子化器中进行原子化。用于铁矿石中砷的测定，结果与标准方法一致。

This method can be used to determine As in iron ore and the result is equal to the result determined by standard method.