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REPUBLIC OF SERBIA MINISTRY OF DEFENCE
MINISTRY OF DEFENCE Material Resources Sector Defensive Technologies Department
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OPTIMIZATION OF CHROMATOGRAPHIC CONDITIONS FOR SEPARATION OF DIPHENYLAMINE AND ITS NITRO AND NITROSO DERIVATIVES BY LIQUID CHROMATOGRAPHY
VESNA PETROVIĆ Technical Overhaul Works Kragujevac, trzk@trzk.rs SLAVIŠA STOJILJKOVIĆ Technical Overhaul Works Kragujevac, trzk@trzk.rs JELENA ŠULTANS
Technical Overhaul
Works Kragujevac, trzk@trzk.rs Abstract: Optimization of conditions for baseline separation of diphenylamine (DPA) and its nitro and nitroso derivatives by reversed phase high performance liquid chromatography is performed. Chromatographic resolving of N-nitroso DPA, mononitro DPA, N-nitroso-mononitro DPA, dinitro derivatives and some N-nitroso-dinitro derivatives of DPA but also some other components of gunpowder and rocket propellants (dinitrotoluene, nitroglycerine and phthalates) is achieved with no influence on quantitative determination of effective stabilizers, DPA and N-nitroso-DPA. The method is optimized for estimation of chemical stability of nitrocellulose based powders and rocket propellants and selected parameters are in accordance with AOP48 Ed.2 method regarding to resolution and maximum column temperature. Keywords: Diphenylamine, gunpowder, propellant, HPLC, liquid chromatography, AOP48 Ed.2
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