EDTA络合滴定法测定茂金属配合物中锆含量  

Determination of Zirconium Content in Metallocene Complexes with EDTA Complexometry

作　　者：郝萍 穆蕊娟 姚培洪 高琳 邵月君 

机构地区：[1]中国石油兰州化工研究中心,甘肃兰州730060

出　　处：《广州化工》2014年第15期172-173,共2页GuangZhou Chemical Industry

摘　　要：采用一定比例高氯酸和硝酸消解试样，利用最佳的酸度和温度，以二甲酚橙为指示剂，运用EDTA络合滴定法测定茂金属配合物中锆含量，结果表明，钛、铝、镁不干扰锆的测定，测定标准偏差0．11％～0．22％（n=6），方法操作简便，分析速度快，可得到准确结果，满足科研过程定量分析需要。Using a certain ratio of perchloric acid to nitric acid to digest samples, xylenol orange was used as an Bindicator, EDTA complexometric titration was introduced to measure zirconium content of metallocene complexes in optimal acidity and temperature. The results showed that aluminum, magnesium and titanium would not interfere with the determination of zirconium, the standard deviations can be controlled in 0. 11% - 0. 22% （ n = 6 ） , and the analysis method was simole, raoid and accurate, which can meet the needs of quantification.

关 键 词：EDTA络合滴定法 锆含量 茂金属配合物 

分 类 号：O657[理学—分析化学]