Study on volatilization mechanism of ruthenium tetroxide from nitrosyl ruthenium nitrate by using mass spectrometer

Ion current intensities of the mass numbers corresponding to O, NO, O2, NO2, HNO3, and RuO4 obtained in mass spectrometry for dried nitric acid solution containing Ru(NO)(NO3)3. Heating rate: 5 K min−1, sample solution weight: 6.61 mg, contained Ru weight: 0.56 mg. The ion current of RuO4 increases with the increasing decomposition of nitrate, while the evaporation of HNO3 decreases.184