Determination of 1-nitropyrene in extracts of vehicle particulate emissions

Journal Article · Tue Jul 01 04:00:00 UTC 1986 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00121a065· OSTI ID:5498191

LaCourse, D L; Jensen, T E

We have developed a rapid and inexpensive procedure for the routine quantitation of 1-nitropyrene (1-NP), a nitroarene found in vehicle exhaust particulate extracts and other combustion sources. The motive for this work is that nitroarenes are an important class of compounds from the standpoint of mutagenicity and that 1-nitropyrene, as one of the more abundant nitroarenes in vehicle exhaust, is a useful index compound for that class. The procedure uses two disposable liquid chromatography columns to clean up and preconcentrate the vehicle exhaust particulate extract. Isolation of the 1-NP fraction is achieved by using a disposable silica column to remove polar components and a Florisil column to remove aliphatic components in the extract. The concentrated sample is then analyzed on a capillary column gas chromatograph with electron capture detection (GC/ECD). The preconcentration process was shown to have a 1-NP recovery of 96.3 +- 9.5%. Standard solutions containing 1.25 - 26 ng of 1-NP in the 0.5-..mu..L GC injection are reproduced with an error of < +- 4.5%. The use of this procedure in the evaluation of diesel exhaust particulate trapping techniques is described.

• Research Organization: Ford Motor Co., Dearborn, MI
• OSTI ID: 5498191
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 58:8; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical &amp; Spectral Procedures
400105 -- Separation Procedures
500200 -- Environment
Atmospheric-- Chemicals Monitoring &amp; Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AROMATICS
AUTOMOBILES
CAPTURE
CHEMICAL ANALYSIS
CHROMATOGRAPHY
CONDENSED AROMATICS
DATA
ELECTRON CAPTURE
EXHAUST GASES
EXPERIMENTAL DATA
FLUIDS
GAS CHROMATOGRAPHY
GASEOUS WASTES
GASES
HYDROCARBONS
INFORMATION
LIQUID COLUMN CHROMATOGRAPHY
MUTAGENS
NITRO COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PARTICLES
PARTICULATES
PYRENE
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
TRACE AMOUNTS
VEHICLES
WASTES