Determination of nonmethane organic carbon (NMOC) in ambient air by cryogenic preconcentration and flame ionization detection

Conference · Fri Jan 01 04:00:00 EST 1982 · Proc., Annu. Meet., Air Pollut. Control Assoc.; (United States)

OSTI ID:6000009

Jayanty, R K.M.; McElroy, F F; McBride, J A; McClenny, W A

The results of this study which successfully demonstrated the analysis of gaseous nonmethane organic compounds (NMOC) using cryogenic trapping to both preconcentrate NMOC and separate NMOC from CH/sub 4/ are discussed. The analysis system is essentially a combination of the preconcentration technique used with the gas chromatographic procedure and a standard, commercial hydrocarbon analyzer modified to maintain a stable flame in the FID under the conditions used in the new analytical system. The method can be used either for direct, in situ ambient measurements or for analysis of integrated samples from a sample bag or canister. The method provides a simple and cost-effective means of acquiring the data base necessary as input to the simple photochemical dispersion models. 7 references, 3 figures, 2 tables.

• Research Organization: Research Triangle Inst., Research Triangle Park, NC
• OSTI ID: 6000009
• Report Number(s): CONF-820627-Pt.3
• Conference Information: Journal Name: Proc., Annu. Meet., Air Pollut. Control Assoc.; (United States) Journal Volume: 31
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
AIR POLLUTION MONITORING
AIR POLLUTION MONITORS
CHROMATOGRAPHY
DESIGN
GAS CHROMATOGRAPHY
MEASURING INSTRUMENTS
MEASURING METHODS
MONITORING
MONITORS
ORGANIC COMPOUNDS
PERFORMANCE TESTING
POLLUTION
SEPARATION PROCESSES
TESTING