EDTA滴定法连续测定锆-铁-钇含量  

Continuous determination of the Zr-Fe-Y Content by EDTA titrimetry

作　　者：袁履璀[1] 向斌[1] 赵娜[1] 

机构地区：[1]重庆大学化学化工学院,重庆400044

出　　处：《分析试验室》2013年第2期93-96,共4页Chinese Journal of Analysis Laboratory

摘　　要：探讨了准确测定废旧锆钇陶瓷回收时产生的酸性溶液中锆、铁、钇的含量时,乙酰丙酮、三乙醇胺和柠檬酸等铁离子掩蔽剂,以及偶氮砷Ⅲ、甲基百里酚蓝和二甲酚橙等指示剂对测定结果的影响,确定仅以二甲酚橙为指示剂,盐酸羟胺为还原剂,用EDTA滴定法连续测定了溶液中的锆、铁、钇含量,测定结果的RSD<2%。In order to accurately measure the content of Zr, Fe and Y in the acidic solution which produced by recycling waste zirconium-yttrium ceramics, the influences of the iron ion masking agent including aeetylacetone, triethanolamine, citric acid and the indicator such as arsenazo Ⅲ hydrate, methyl thymol blue and xylenol orange on the determination results were investigated in this paper. Finally, a satisfactory result has been achieved by EDTA titrimetry when xylenol orange and hydroxylamine hydrochloride acted as the only indicator and reducing agent, respectively. The RSD was smaller than 2%

关 键 词：锆 铁 钇 连续测定 

分 类 号：O655.2[理学—分析化学]