测定2,6-双(苦氨基)-3,5-二硝基吡啶纯度的研究

Certificated Study of 2,6 Dipicrylamino 3,5 dinitro pyridine Pureness Reference Material by Potentiometric Method

用电位滴定法对２，６－双（苦氨基）－３，５－二硝基吡啶（ＰＹＸ）标准物质的纯度进行测定。ＰＹＸ用二甲基甲酰胺溶解，以四甲基氢氧化铵的二甲基酰胺溶液为滴定剂。该方法的回收率和变异系数分别为１００．０％和０．１３％。

The 2,6 dipicrylamino 3,5 dinitro pyridine(PYX)pureness reference material had been certificated by potentiometric method.In the method PYX is dissolved with dimethyformamide(DMF),tetramethylaminonium hydroxide of DMF is used as standard titrimetric solution.The recovery and variation coefficient were 100.0% and 0.13% respectively.