摘要
为了对离子选择电极法测定氧化锌中氟含量的分析方法进行改进,采用过氧化钠—氢氧化钠混合熔剂进行样品熔融,加入溴甲酚绿指示剂调节酸度。结果表明:改进后检测方法的加标回收率为97.50%~104.00%,相对标准偏差为2.31%。该方法精密度及准确度较好、灵敏度较高。
To improve the ion selective electrode method for the determination of fluorine content in zinc oxide, with the sodium peroxide and sodium hydroxide mixture was used to fuse sample and bromocresol green indicator was added to adjust acidity. The recovery of improved method is be-tween 97.50% and 104.00% with RSD of 2. 31 % , indicating the method has better precision and accuracy, high sensitivity.
作者
杨占菊
YANG Zhanju(The Key Laboratory of Mineral Processing Engineering and Comprehensive Utilization of Qinghai,The Testing Center of Technology Institute/Western Mining Co. ,Ltd, Xining 810007, China)
出处
《青海大学学报（自然科学版）》
2017年第3期76-81,共6页
Journal of Qinghai University(Natural Science)
关键词
氧化锌
氟
离子选择电极法
Zno
fluorine
ion selective electrode method
