钢铁及合金中稀土总量快速测定方法研究  

Rapid determination of total content of rare earth in steel and alloy

作　　者：褚连青[1] 李继爽[1] 王鑫[1] 魏利洁[1] 

机构地区：[1]中国电子科技集团公司第四十六研究所,天津300192

出　　处：《现代仪器》2012年第1期22-23,共2页Modern Instruments

摘　　要：本文建立铜铁及其合金中稀土总量快速测定方法。试样用硫酸和硝酸的混合酸溶解，用草酸做掩蔽剂，偶氮氯膦mA与稀土生成蓝色络合物，于分光光度计波长670nm处测量其吸光度样品的加标回收率为96．0％～101．8％，相对标准偏差（RSD）为3．0％。、方法操作简便、快速、准确.A method for rapid determination of total content of rare earth in steel and alloy was developed. The samples were dissolved by the mixture of sulfuric acid and nitric acid. Detemaination of total content of rare earth in steel and alloy by chlorophos phonazomA spectrophotometry by taken oxalic acid as masking reagent at wavelength 670nm. The RSD were 3,0%. The recoveries were 96.0%-101.8%. The method was easy, rapidly and accuracy.

关 键 词：快速测定方法 稀土总量 合金 钢铁 偶氮氯膦MA 相对标准偏差 加标回收率 分光光度计 

分 类 号：O614.33[理学—无机化学]