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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。
The effects of diphenylamine (DPA) and its three nitro derivatives, such as 2-NDPA, 4-NDPA and N-nitrosodiphenylamine (NNDPA) ) Of the preparation of standard materials, diphenylamine analytically pure diphenylamine as raw material, refined by the standard material, 2-NDPA direct use of industrial refined into a standard substance, 4-NDPA and NNDPA is refined into the standard after the synthesis substance. Four kinds of standard materials using two different methods of valuation, the results have reached a military standard material requirements.