Diphenylamine(DPA) contents in single base propellants were determined by means of a single-sweep-square-wave polarography after the treatment of nitrosation of DPA.

• 将单基发射药亚硝化后用单扫描方波极谱法测定溶液中的二苯胺(DPA)含量,用丙酮溶解单基发射药试样,使用组成与待测样品相同的单基标准样品作工作曲线。