【摘要】 用多元线性回归电位滴定法，同时测定两种金属离子的混合溶液并加以应用。讨论了测定原理和实验方法，选择了最佳实验条件。将其应用于自来水和石灰石中钙镁的测定，结果可达到化学分析准确度的要求。对批量样品的分析具有省时省力的特点，是很有应用前景的方法。更多还原

【Abstract】 A method for the simultaneous determination of Ca2+ and Mg2+ by potentiometric titration is presented. In this method, the potentiometric titnation data was processed by using multiple linear regres sin. The method is accurate and simple. It has been applied to determine calcium and magnesium in tap water and limestone.更多还原