卡尔曼滤波在滴定分析法中的应用

Application of Kelman Filter in Titration Analysis

本文研究卡尔曼滤波在电位滴定分析法中的应用。介绍了滴定分析模型、卡尔曼滤波算法及程序框图。卡尔曼滤波对于提高那些反应较慢或电极响应迟缓的滴定体系的分析准确度有很大帮援。考察了采样间隔、滴定速度及系统误差等参数对结果准确度的影响。将本法应用于HAc/NaOH、KI/AgNO_3及CaCl_2/EDTA三种下同的滴定体系,分析结果的准确度均大大提高。

The application of Kalman filter in potential titration analysis is studied.The mathematical model,algorithm and flow chart are described.This method is very helpful in improving accuracy of titration systems which have slow reaction and delayed electrode response.The effects of sampling interval.titration rate and systematic error,etc,on the accuracy of results are investigated.This method had been applied to three different titration systems, HAe/NaOH, KI/AgNO_3 and CaCl/EDTA,the accuracy of results was improved considerably.