De Jong, A. L. published the artcileHigh-performance liquid chromatographic separation of diphenylamine and its reaction products with nitrogen oxides, Application of Bis(4-nitrophenyl)amine, the publication is Propellants, Explosives, Pyrotechnics (1988), 13(5), 152-6, database is CAplus.
An HPLC method is used to detect and determine Ph2NH and its reaction products with NOx, especially in respect to the anal. of single-base propellants. Polygosil 100 C 18 is the packing material, the maximum injection volume of CH2Cl2 is 2 ¦ÌL, and the eluent is 10:40:50 MeOH-MeCN-H2O; detection is done at 210 nm. Normal-phase chromatog. can be used in the separation of Ph2NH and 2,4,4′-trinitrodiphenylamine, but, in most propellant analyses, retains 4,4′-dinitrodiphenylamine (a major reaction product) excessively. Reversed-phase chromatog. has the advantages of short equilibration time, separating ability for both polar and nonpolar solutes, and good reproducibility of retention times.
Propellants, Explosives, Pyrotechnics published new progress about 1821-27-8. 1821-27-8 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is Bis(4-nitrophenyl)amine, and the molecular formula is C12H9N3O4, Application of Bis(4-nitrophenyl)amine.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia