金属化聚丙烯膜电容器中铅、镉及汞含量测定

Determination of Pb,Cd and Hg in Metalized Polypropylene Film Dielectric Capacitor

探讨了用原子吸收光谱仪测定金属化聚丙烯膜电容器中铅、镉及汞含量的方法。结果表明，结合适宜的样品预处理，可用该法测定金属化聚丙烯膜电容器中铅、镉及汞含量，方法回收率为92．3％～106％，相对标准偏差小于2、5％。该法灵敏度高、干扰小。

The determination of Pb, Cd and Hg in the metalized polypropylene film dielectric capacitor by theatomic absorption spectrophotometry （AAS） has been discussed. The result shows that the above - mentioned method , combined with a appropriate pretreatment of the sample, is applicable, more sensitive, less interferential and easier to operate. The recoveries of the standard addition were in the range of 92.3% - 106% and the RSD was less than 2. 5%.