Analysis of polynuclear aromatic hydrocarbons from coal fly ash

The objective of this work is to compare various extraction and quantitation techniques for the determination of adsorbed polynuclear aromatic hydrocarbons (PAHs) on coal ash. Aliquots of a `clean' fly ash from coal combustion doped with four PAHs have been extracted, using three solvents, thre...

Full description

Saved in:
Bibliographic Details
Published in:Fuel processing technology 1998-02, Vol.53 (3), p.235-242
Main Authors: Purushothama, Shobha, Pan, Wei-Ping, Riley, John T, Lloyd, William G
Format: Article
Language:English
Subjects:
Air pollution caused by fuel industries
Applied sciences
Aromatic
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Extraction
Fly ash
Hydrocarbons
Metering. Control
Polynuclear
Ultrasonic
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The objective of this work is to compare various extraction and quantitation techniques for the determination of adsorbed polynuclear aromatic hydrocarbons (PAHs) on coal ash. Aliquots of a `clean' fly ash from coal combustion doped with four PAHs have been extracted, using three solvents, three methods and three GC/MS programs. Factorial analysis shows solvent to exert the greatest primary effect: CH 2Cl 2>toluene>> o-xylene. Highest recoveries were obtained using the reflux slurry extraction procedure with CH 2Cl 2 and a relatively fast (20°/min) temperature ramp to 310°. With both CH 2Cl 2 and toluene solvents, ultrasonic assisted extraction affords the best repeatability.
ISSN:0378-3820
1873-7188
DOI:10.1016/S0378-3820(97)00056-8