线性滴定法是近几年来发展较快的方法之一,它以滴定直线代替滴定曲线。线性滴定作为新的滴定理论和滴定方法,打破了一般滴定分析必须产生突跃的局限性,使滴定分析向前发展了一大步。其优点是能测定一般滴定分析无法测定的极弱酸(离解常数Ka<10~(-7))和混合酸、多元酸(Ka_1:Ka_2<10~4)。测定时,滴定剂等量分步加入,便于自动化。但计算复杂,配用电子计算机才能迅速得到结果。 Linear titration is one of the fastest growing methods in recent years. It uses titration instead of titration curve. As a new titration theory and titration method, the linear titration breaks the limitation that the common titration analysis must produce the jump, which makes the titration analysis a big step forward. Its advantage is that it can measure extremely weak acid (dissociation constant Ka <10 ~ (-7)) and mixed acid and polyacid (Ka_1: Ka_2 <10 ~ 4) which can not be determined by the general titration analysis. Determination, titrant equal to step by step, easy to automate. But the calculation is complex, with the computer to get results quickly.