摘要
在０５６ｍｏｌ／ＬＨＮＯ３介质及溴化十六烷基吡啶存在下，Ｚｒ（Ⅳ）与对羧基偶氮氯膦形成１∶２的蓝色络合物。其λｍａｘ＝６８５ｎｍ，ε６８５＝６８５×１０４，Ｚｒ（Ⅳ）的质量浓度为在０～０８ｍｇ／Ｌ时符合比尔定律。所建立的方法用于熔铸氧化铝和陶瓷釉料中Ｚｒ的测定，结果与推荐值相符，对于ｗ（Ｚｒ）＝１１８％熔铸氧化铝测定６次，其ＲＳＤ＝０８８％。
In the presence of CPB and in 0.56 mol/L HNO 3 medium, zirconium reacts with p CPA and forms a 1∶2 blue complex. The maximum absorption is at 685 nm and the molar absorptivity is 6.85 ×10 4 L·mol -1 ·cm -1 . Beer′s law is obeyed in the range of 0～0.8 mg/L for Zr(Ⅳ). The method has been applied to the determination of Zr in casting aluminum oxide and porcelain glaze with satisfactory results.
出处
《岩矿测试》
CAS
CSCD
北大核心
1997年第2期159-160,F003,共3页
Rock and Mineral Analysis
