摘要
以萃取硫氰酸盐分光光度法测定超细石墨中微量钼，对石墨样的预处理方法、萃取介质酸度、萃取剂的组成及用量等实验条件进行了优化选择。该方法测定石墨样品的微量钼的灵敏度为５μｇ／Ｌ。干法回收率９５ ．３ ％ ，显法回收率为９８ ．１ ％ 。
This paper presents the determination of trace molybdenum in superfine graphite samples by thiocyanate extraction spectrophotometry. The experimental conditions such as the digestion method of samples, the acidity of medium, the composition and amount of extract agent were tested and optimized. The sensitivity of the method presented is 5.0 μg/L for molybdenum. The recovery of dry-and wet digestion of graphite samples is 95.3% and 98.1%, respectively
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
1999年第S1期185-190,共6页
Periodical of Ocean University of China
关键词
钼
超细
石墨
萃取
Molybdenum
superfine graphite
thiocyanate extraction spectrophotomtry
