【摘要】 推导了混合酸的滴定方程，以主成份回归法处理滴定数据，采用校正的方法建立模型，并考虑常数项的影响，然后利用所建立的模型对未知混合酸的浓度进行预报。本文将该方法应用于ΔｐＫａ＜０．１的五组份混合酸的同时测定，获得较好的效果。更多还原

【Abstract】 Principal component regression(PCR) was applied to the evaluation of acid-base titration data.The principle of PCR was described.In the procedure, a model was developed from samples of known composition(calibration set)and was applied to predict unknowns(test set).The method was applied to titrate mixed acids of five components with a small difference in pKa values, even a difference of pKa only 0.1.更多还原