本文利用简便的滴定过程模型,确立了微机模拟处理实验数据,方便、准确地求解络合滴定等当点的方法。设计了最佳实验条件模拟估计程序。该法测定Zn~(2+),Pb~(2+),Cu~(2+),Fe~(3+)结果的相对误差Δ<1％。pH=6-7时,测定Ca~(2+)的相对误差为-1.61％;σ<0.001mmol,(N=5)。 In this paper, a simple titration process model was established, which established a method of computer simulation processing experimental data, convenient and accurate solution of complexometric titration equivalence point. Designed the best experimental conditions simulation and estimation procedures. The method was used to determine the relative error Δ of Zn ~ (2 +), Pb ~ (2 +), Cu ~ (2 +) and Fe ~ (3+) by less than 1%. The relative error of Ca 2+ was -1.61% when pH = 6-7; σ <0.001 mmol, (N = 5).