EGTA荧光滴定法快速测定硅铝钙钡合金中的钙钡元素  

Fast Determination of Calcium and Barium in Silicon-aluminum-calcium-barium Alloy by EGTA Fluorescence Titration

作　　者：魏恩双[1] 王淑品[1] 张平建[1] 李凌云[1] 宋玉珍[1] 

机构地区：[1]莱芜钢铁集团有限公司品质保证部

出　　处：《莱钢科技》2007年第3期54-55,71,共3页Laigang Science & Technology

摘　　要：EGTA荧光滴定法快速测定钙钡,因钙钡两元素的化学性质近似,相互干扰不能进行钙钡的联合测定。本文用稀硫酸沉淀钡为硫酸钡,借此消除钡对钙滴定的影响,实现了EGTA荧光滴定法快速测定钙钡。方法操作简便、快速,结果准确。Chemical properties of the two elements of calcium and barium are so close that they interfere with each other,making it impossible to jointly determine them.This paper introduces EGTA fluorescence titration to fast determine silicon and calcium.Dilute sulphuric acid is used to precipitate barium into barium sulphate,by which the influence of barium on calcium titration is removed,so fast determination of calcium and barium by EGTA fluorescence titration is realized.The method is simple to operate,fast and accurate.

关 键 词：硅铝钙钡合金 脱氧剂 EGTA荧光滴定法 操作简便 

分 类 号：O614.231[理学—无机化学]