【摘要】 研究了二苯胺（ＤＰＡ）及其三种硝基衍生物——２－硝基二苯胺（２－ＮＤＰＡ）、４－硝基二苯胺（４－ＮＤＰＡ）、Ｎ－亚硝基二苯胺（ＮＮＤＰＡ）标准物质的制备，其中二苯胺采用分析纯二苯胺为原料，经精制制得标准物质，２－ＮＤＰＡ直接采用工业品精制成标准物质，４－ＮＤＰＡ和ＮＮＤＰＡ是合成后再精制成标准物质。四种标准物质采用两种不同方法定值，结果均达到一级军用标准物质要求。更多还原

【Abstract】 Standard substance of diphenylamine and three kind of nitro derivatives were prepared.Diphenylamine(DPA) was purified from analytical reagent (AR) DPA. 2 Nitrodiphenylamine(2 NDPA) was directly purified from its industrial product.4 Nitrodiphenylamine (4 NDPA) and N nitrosodiphenylamine (NNDPA) were synthesised and then purified. Their pureness deterimined in methods of two different priciples and conformed to the technical norm of first grade military standard substance.更多还原