Determination of organic oxygen in ambient particulate matter

Conference · Mon Aug 01 00:00:00 EDT 1983

OSTI ID:5430974

Benner, W H; Hansen, A D.A.; Gundel, L A; Novakov, T

A sample of ambient particulate matter is pyrolyzed in N/sub 2/ at 1135/sup 0/C, and the evolved oxygen is detected by nondispersive infrared spectrometry after conversion to CO. Oxygen in organic compounds, carbonates, silicates, sulfates, nitrates, water, and adsorbed oxygen-containing gases is quantitated; but silica and alumina are not detected. Organic oxygen is determined by analyzing an evaporated extract of the sample. A procedure is also presented for determining oxygen thermograms. The organic fraction of ambient particulate matter is highly oxygenated (C/O approx. = 2).

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5430974
• Report Number(s): LBL-16103; CONF-8309166-7; ON: DE84002926
• Resource Relation: Conference: 2. international conference on carbonaceous particles in the atmosphere, Linz, Austria, 11 Sep 1983
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ORGANIC OXYGEN COMPOUNDS
THERMAL ANALYSIS
PARTICULATES
CHEMICAL ANALYSIS
INFRARED SPECTRA
PYROLYSIS
SPECTROSCOPY
CHEMICAL REACTIONS
DECOMPOSITION
ORGANIC COMPOUNDS
PARTICLES
SPECTRA
THERMOCHEMICAL PROCESSES
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)