同时直接测定磷酸与亚磷酸的研究

Study on Simultaneous Direct Determining Phosphoric Acid and Phosphorous Acid

研究了用电位滴定法直接同时测定磷酸和亚磷酸的新方法 ,该方法利用已知混合酸的电位滴定数据 ,建立多元线性回归数学模型 ,应用该模型对未知混合酸中各组份进行浓度测定 。

A new method of the direct simultaneous determining of phosphoric acid and phosphorous acid by potentiometric titration is studied.In this method,the potentiometric data processing is carried out by using multiple linear regression,a model is developed from samples of known composition,and is then used to predict unknown and the results are satisfactory