氧化镁标准物质的研制  

DEVELOPMENT OF MAGNESIUM OXIDE CERTIFIED REFERENCE MATERIAL

作　　者：王爱萍[1] 王少明[1] 梁秀丽[1] 刘立君[1] 王宇友 

机构地区：[1]中国兵器工业集团第五三研究所,济南250031 [2]杭州天目山药业股份有限公司,临安311300

出　　处：《化学分析计量》2003年第2期4-6,共3页Chemical Analysis And Meterage

摘　　要：介绍氧化镁标准物质的研制过程。氯化镁经重结晶提纯,与草酸铵反应制得草酸镁,将草酸镁煅烧制备成氧化镁标准物质。采用称量滴定法进行定值,实验结果表明,该标准物质定值结果准确,均匀性、稳定性良好。The development process of magnesium oxide certified reference material was introduced. Magnesium chloride was purified by recrystallization, magnesium oxalate was prepared by the reaction of magnesium chloride with ammonium oxalate and magnesium oxide certified reference material was obtained by baking magnesium oxalate. The pureness was determined via weighing titration method. The result shows that the homogeneity and stability are good, the certification is accurate and reliable and it can meet the requirement of the actual work.

关 键 词：标准物质 氯化镁 研制 重结晶 提纯 氯化镁 草酸铵 

分 类 号：TQ132.2[化学工程—无机化工]