氧化氢氧化钴中二价钴含量的测定  

Determination of cobaltⅡ content in cobalt oxyhydroxide

作　　者：常照荣[1] 徐秋红[1] 郑洪河[1] 李云平[1] 刘院英[1] 

机构地区：[1]河南师范大学化学与环境科学学院,河南新乡453002

出　　处：《冶金分析》2005年第1期36-38,共3页Metallurgical Analysis

摘　　要：研究并提供了用差减法测定氧化氢氧化钴中二价钴占总钴元素含量的具体实验方法。实验发现:样品溶解步骤是整个分析过程中的关键,样品溶解时的酸度,样品量以及实验温度等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≤1 4%(n=6),相对标准偏差≤7 5%(n=6)。The specific application of subtration method to measure cobalt*' content in cobalt oxyhydroxide was studied.The results showed that dissolution of the samples was a key step.Other factors such as pH value,the mass of the samples and the temperature had obvious influence on the results.The method was proved to be simple,accurate and reliable.The standard deviation was less than 1.4%(n=6) and the relative standard deviation was under 7.5%(n=6).

关 键 词：氢氧化钴 定氧 溶解 标准偏差 实验 钴含量 试剂 样品 分析结果 影响 

分 类 号：TG115[金属学及工艺—物理冶金]