Simultaneous Determination of Thorium and Lanthanum in Waste Water with the Use of Kalman Filter-Spectrophotometry

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (6): 784.

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Simultaneous Determination of Thorium and Lanthanum in Waste Water with the Use of Kalman Filter-Spectrophotometry

ZHOU Wei-Liang¹, PAN Jiao-Mai¹, WANG Jian-Xing²

1. Dept of Chem., East China Normal Univ., Shanghai, 200062;
2. Dept.of Chem., Xinxing Normal College, Xiaxiang

Received:1992-08-24 Revised:1993-02-10 Online:1993-06-24 Published:1993-06-24

Abstract

Abstract: The proper color-reaction condition of dibormocarboxyarsenazo with thorium (Ⅳ) are discussed.With the Kalman filter-spectrophotometry, thorium and lanthanum in waste water have been simultaneously determined by using the chromogenic reagent dibormocarboxyarsenazo with satisfactory-results.The average recovery of thorium and lanthanum are 100.68% and 99.62% respectively, the average deviation of determined results are less than +4.0%, and both with good reproducibility.

Key words: Kalman filter-spectrophotometry, Dibormocarboxyarsenazo, Thorium, Lanthanum, Simultaneous determination of multicomponent

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ZHOU Wei-Liang, PAN Jiao-Mai, WANG Jian-Xing. Simultaneous Determination of Thorium and Lanthanum in Waste Water with the Use of Kalman Filter-Spectrophotometry[J]. Chem. J. Chinese Universities, 1993, 14(6): 784.

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Simultaneous Determination of Thorium and Lanthanum in Waste Water with the Use of Kalman Filter-Spectrophotometry

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