分析化学中对'滴定分数'概念的一点建议

摘要

分析化学教科书中, 在绘制滴定曲线时, 引入了"滴定分数"的概念.在酸碱滴定法中, 不同版本的经典教材对这个概念的引用不一致, 因此建议统一.文章以一元强碱滴定一元强酸和一元强碱滴定三元酸为例, 深入理解"滴定分数"的概念, 指出武大版教材对"滴定分数"的应用 (令第一化学计量点asp1=100％、第二化学计量点asp1=200％、第三化学计量点asp1=300％) 最具有普适性.%As described in Analytical Chemistry textbooks, before drawing titration curve, titration fraction is introduced. In acid-base titrations, the conception for titration fraction is different reference from classical textbooks, so it is suggested that the consistent expression is necessary. Taking the titration of a strong acid with a strong base and the titration of ternary acid with a strong base as examples, with better understanding"titration fraction", it was indicated that the application of titration fraction ( let the first equivalent point asp1 be 100％, the second one asp2 be 200％, and the third one asp3 be 300％) of Wuhan University edition textbook had the best suitability.