The traceimpurity in product has been determined by A A S. it is important to improve process.
还用原子吸收光谱法测定了产品中微量杂质的含量，对改进生产工艺具有指导作用。
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A ICP-MS method for the determination of 5 traceimpurity elements of copper, titanium, zinc, manganese and cobalt in aluminum has been developed in this paper.
Determining traceimpurity element of the standard europium oxide by the standard addition method. So the errors owing to neglecting the impurity in the standard are eliminated.