Dynamic coupled-column liquid-chromatographic determination of ambient-temperature vapor pressures of polynuclear aromatic hydrocarbons

1983 ◽  
Vol 55 (2) ◽  
pp. 275-280 ◽  
Author(s):  
W. J. Sonnefeld ◽  
W. H. Zoller ◽  
W. E. May
Keyword(s):  
Ambient Temperature ◽  
Aromatic Hydrocarbons ◽  
Chromatographic Determination ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Vapor Pressures ◽  
Column Liquid Chromatographic ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic

Liquid Chromatographic Determination of Trace Residues of Polynuclear Aromatic Hydrocarbons in Smoked Foods

1984 ◽  
Vol 67 (6) ◽  
pp. 1076-1082 ◽  
Author(s):  
Frank L Joe ◽  
Jean Salemme ◽  
Thomas Fazio
Keyword(s):  
Dimethyl Sulfoxide ◽  
Aromatic Hydrocarbons ◽  
Chromatographic Determination ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Alumina Column ◽  
Uv Detectors ◽  
Market Basket ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic

Abstract A liquid chromatographic (LC) method was developed and applied to the determination of polynuclear aromatic hydrocarbons (PAHs) in a variety of smoked, market basket commodities. The PAHs are extracted with l,l,2-trichIoro-l,2,2-trifluoroethane (Freon 113) from alcoholic KOH digests of the commodities. The extracts are purified by column chromatography through a deactivated silica gel/alumina column and by liquid-liquid partitioning between dimethyl sulfoxide and cyclohexane before separation of the PAHs by LC. Both fluorescence and UV detectors are used to monitor the LC column effluent to detect nanogram quantities of PAHs. Trace levels of carcinogenic and noncarcinogenic PAHs were found in all samples analyzed, although generally at <1 ppb levels.

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