两次标准加入配位滴定法同时测定铁和铝

Simultaneous Determination of Iron and Alumination with a Dual Standard Additions Coordination Titration Method

讨论了两次标准加入配位滴定法双组份同时测定的原理．用该法对水泥及模拟样品中的铁（Ⅱ）和铝（Ⅲ）进行了同时测定，得到了较满意的结果，铁（Ⅱ）和铝（Ⅲ）的加标回收率分别为１０１％和９８．５％．

A dual standard additions procedure for simultaneous determination of binary mixture is proposed and the principle of simultaneous determination with coordinating titration is discussed.The amount of iron and aluminum in a simulated sample and in cement are determined with coodinating titration method and the results are satisfactory.The recoveries of iron and aluminum are 101. 1% and 98. 5% respectively.