微波消解石墨炉原子吸收法测水处理剂中痕量镉

Determination of Trace Cd in Water Treatment Reagent by GFAAS with Microwave Digestion of Sample

采用微波制样技术,用石墨炉原子吸收法测定水处理剂中痕量镉。结果表明,方法的线性范围为0～20μg/L,检出 限为0.13μg/L,相对标准偏差为2.6％,回收率为98.0％。该法准确、快速、简便,已用于水处理剂中痕量镉的测定。

In this paper the microwave digestion technique was used in the graphite furnace atomic absorption spectrometry determination of trace Cd in water treatment reagent. The results obtained that the linear range is 0-20μg/L,the detection limit is found to be 0.13μg/L, the recovery 98. 0% and its RSD 2. 6%. The proposed method proved to be accurate, rapid and simple. It has been used in the determination of water treatment reagent.