TY JOUR TI DETERMINATION OF HETEROATOMIC COMPOUNDS IN OILS BY GAS CHROMATOGRAPHY-MASS-SPECTROMETRY KW identification KW oils KW chromatography-mass spectrometry KW heteroatomic compounds KW phenols KW ketones KW mercaptans JO Problems of risk management in the technosphere AU Mitiukhina, A.D. AU Ivakhniuk, S.G. AU Smirnov, A.S. PY 2013 IS 2013 PB Saint-Petersburg University of State Fire Service of Emercom of Russia