The possibility of applying a chromatography-mass-spectrometer with a quadrupole mass-detector to detect diphenylamine in shot products has been established. A procedure has been proposed to extract and determine the content of smokeless powder stabilizer, diphenylamine, on the obstacle (a cotton target) damaged by the shot. We have studied the relationships between diphenylamine content in the obstacle and the shot distance and between diphenylamine content on the shooter's hands and the number of shots and gun model. Diphenylamine detection limits have been found in the mode of signal registration by full ion current and in the detection mode by the given ion.
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