摘要
研究了用标准加入法测定球形氢氧化镍表面包覆或还原为单质镍含量的一种新方法.实验表明,样品的溶解步骤是整个分析过程的关键,样品溶解时酸的用量,紫脲酸铵的用量以及温度对分析结果有较大影响.该方法所用试剂简单,操作简便,准确度高,结果可靠.标准偏差0.23%(n=8),相对标准偏差3.52%(n-8).
Here is a facile method for the determination of coated or reduced Ni on the surface of spherical Ni(OH)2 using standard additions.The results show that the dissolution of samples plays a key role in the whole process.In addition,the temperature,and the content of the acid and murexide in the solution have considerable effects on the analytical results.This method is proved to be simple and accurate.The standard deviation is less than 0.23%(n=8) and the relative deviation is under 3.52%(n=8).
出处
《河南师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2011年第5期81-83,共3页
Journal of Henan Normal University(Natural Science Edition)
基金
国家自然科学基金(21071046)
河南省重点科技攻关项目(092109000015)
关键词
氢氧化镍
表面包覆
镍含量
nickel hydroxide
surface costing
nickel content