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研究了卡尔曼滤波分光光度法。借助偶氮氯膦Ⅲ灵敏显色反应并结合最佳递推滤波数据处理方法,使本法兼具灵敏度高与选择性好的优点。该法已应用于混合稀土(镧、镨、钕、钐)的同时测定,也可用于单一稀土(钕)的选择测定。方法简便灵活。
Kalman filter spectrophotometry was studied. With chlorophosphonazo Ⅲ sensitive color reaction and combined with the best recursive filtering data processing method, this method combines the advantages of high sensitivity and good selectivity. The method has been applied to the simultaneous determination of mixed rare earths (lanthanum, praseodymium, neodymium and samarium) and also for the selective determination of single rare earth (neodymium). The method is simple and flexible.