戊二醛含量测定方法的改进

Improvement on the Determination of Glutaric Dialdehyde

对戊二醛测定方法进行改进 ,采用酸度计判定终点的方法代替用肉眼观察指示剂变色来判定终点。改进后的方法平均偏差为 0 .0 4,标准偏差为 0 .0 2。并且在正常情况下 (试样无色 ,含量≥ 1% ) ,改进前后的测试方法的数据结果基本一致。而当试样含量≤ 1%或试样有色时 ,则测试结果相差很大。

Determination of glutaric dialdehyde was improved, in which acidity measurer instead of indicator indicated titration end point. Results showed that the improved determination had the average deviation of 0.04, standard deviation of 0.02 and good consistency in the case of colorless samples and large than 1% of glutaric dialdehyde.