Desorption efficiencies of vapor phase polynuclear aromatic compounds on solid adsorbents

Technical Report · Sun Jan 01 04:00:00 EST 1984

OSTI ID:6445877

Timmons, K D; Karlesky, D; Johnson, E; Warner, I M

Polynuclear aromatic compounds (PNAs) in the vapor phase can be collected by adsorption onto solid adsorbents. This paper reports the results of a study using several liquid and gas chromatographic packing materials to determine their applicability for vapor phase sampling of PNAs. The desorption procedure for PNAs from the solid adsorbents involves extraction with non-polar organic solvents. The desorption efficiency for each adsorbent is evaluated using gas chromatography. The combined adsorption/desorption (recovery) efficiency of several adsorbents was evaluated. These adsorbents can be grouped into four classifications: (1) carbon or charcoal, (2) macroreticular resins such as Tenax GC or the XAD-series, (3) adsorbents solids such as silica, alumina, and Florisil, and (4) bonded-phases on silica such as C/sub 18/. The resin XAD-8 was found to be most suitable for sampling vapor phase PNAs as a result of its high adsorption desorption efficiency and good reproducibility.

• Research Organization: Emory Univ., Atlanta, GA (USA). Dept. of Chemistry
• DOE Contract Number: AS05-82ER60100
• OSTI ID: 6445877
• Report Number(s): DOE/ER/60100-3; ON: DE85001303
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ADSORBENTS
ADSORPTION
AIR POLLUTION
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
CARBON
CHALCOGENIDES
CHARCOAL
CHROMATOGRAPHY
DESORPTION
ELEMENTS
GAS CHROMATOGRAPHY
HYDROCARBONS
MINERALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PACKINGS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLLUTION
POLYCYCLIC AROMATIC HYDROCARBONS
POLYMERS
RESINS
SEPARATION PROCESSES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES