【摘要】 利用卡尔曼滤波（ＫＦ）技术，对互相干扰的Ｓｎ（Ⅳ）、Ｐｂ（Ⅱ）、Ｉｎ（Ⅲ）、Ｃｄ（Ⅱ）体系进行了定量测试研究。在５．００×１０５～３．００×１０４ｍｏｌ·Ｌ１的浓度范围内，各组分测试的相对误差为－４．０％～３．８５％。对大理石抛光粉管理样中的Ｓｎ（Ⅳ）、Ｐｂ（Ⅱ）进行了测定，结果与ＩＣＰＡＥＳ结果相符。回收率在９５．０％～１０４％之间。为保证ＫＦ的精度，使用了两个监控出口。数据说明效果良好更多还原

【Abstract】 Kalman filtering technique is applied to solve the problem of mutual interference of Sn(Ⅳ)、Pb(Ⅱ),In(Ⅲ)and Cd(Ⅱ) due to overlapping of the polarographic peaks of these ions.It is useful in reducing the interference in the range of 5.0×10 5 mol·L 1 ～3.0×10 4 mol·L 1 .The relative deviations of determination of these elements lie in -4.0%～3.85%.The method has been employed to the determination of Sn(Ⅳ) and Pb(Ⅱ) in marble polishing powder samples.The results agree with the data obtained by ICP AES analysis.The recovery is 95.0%～104.0%.To ensure the precision of Kalman filtering,two monitoring output terminals were provided.更多还原