分析化学实验中几种指示剂的改进

MODIFIED A FEW INDICATORS IN EXPERIMENTS OF ANALYTICAL CHEMISTRY

提出了几种混合指示剂和间接指示剂的使用和配制方法 ,将其用于滴定分析 ,实际应用证明指示剂终点变色敏锐 ,误差小 ,有利用学生对混合指示剂和间接指示剂等的掌握和使用。

It is suggested in this paper that the mathod of using and preparaing the mixture indicator and indirect indicator.The method has been applied in the titrimetric analysis,and it proves to be good in sensitivity and accuracy with satisfactory results.