Characterization of polar polycyclic aromatic compounds in a heavy-duty diesel exhaust particulate by capillary column gas chromatography and high-resolution mass spectrometry

Journal Article · Thu Dec 01 04:00:00 EST 1988 · Environ. Sci. Technol.; (United States)

DOI:https://doi.org/10.1021/es00177a009· OSTI ID:6158462

Bayona, J M; Markides, K E; Lee, M L

Polar normal-phase HPLC fractions of a heavy-duty diesel exhaust particulate, a National Bureau of Standards (NBS) standard reference material (SRM) 1650, were analyzed by capillary column GC coupled to both low- and high-resolution mass spectrometry (HRMS) using electron impact (EI) and negative ion chemical ionization (NICI). Over 80 polycyclic aromatic compounds (PAC), belonging to many different chemical classes (anhydrides, carboxaldehydes, diazaarenes, cyclic imides, nitrohydroxy-PAC, nitroaza-PAC, nitrodiaza-PAC, nitrolactones, and quinones) were tentatively identified. Ten of them were positively identified by comparison of retention times with authentic standards. Among them, phenazine and phthalic anhydride were positively identified for the first time in diesel exhaust particulates. In addition, cyclic imides and their alkylated derivatives were tentatively identified for the first time. Other novel polar chemical classes of PAC were evidenced by MICI MS using a direct-insertion probe.

• Research Organization: Brigham Young Univ., Provo, UT (USA)
• OSTI ID: 6158462
• Journal Information: Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 22:12; ISSN ESTHA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
AROMATICS
CHEMICAL COMPOSITION
CHROMATOGRAPHY
DATA
DIESEL ENGINES
ENGINES
EXHAUST GASES
EXPERIMENTAL DATA
FLUIDS
GAS CHROMATOGRAPHY
GASEOUS WASTES
GASES
HEAT ENGINES
HYDROCARBONS
INFORMATION
INTERNAL COMBUSTION ENGINES
MASS SPECTROSCOPY
NUMERICAL DATA
ORGANIC COMPOUNDS
PARTICLES
PARTICULATES
POLLUTION
POLYCYCLIC AROMATIC HYDROCARBONS
SEPARATION PROCESSES
SPECTROSCOPY
WASTES