摘要
研究了测定化成箔中的微量SO42含量的离子色谱法:将化成箔用碱溶液溶解后,用活性Al2O3分离柱除去Al3+等干扰离子,以峰面积积分定量测定了化成箔中SO42的含量。本方法的检测下限为2.5×106g·cm2,硫酸根的回收率为98.56%～101.35%,用于实际样品的分析,取得了较好的检测结果。
The method for determination of sulfate content in formed foil was studied. Formed foil was dissolved with sodium hydroxide solution. The interference ions such as Al3+ in the solution were separate with an active aluminum oxide column, and sulfate content was determined by ion chromatography method. Of the method, the lower limit is 2.5106g·cm2 and the recovery from 98.56% to 101.35%. The method is reliable, simple and accurate.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2003年第8期20-22,共3页
Electronic Components And Materials
