Petroleum hydrocarbons in oysters from Galveston Bay
Oysters from a location in Galveston Bay, Texas, were analysed for petroleum-derived hydrocarbons. The lipids and hydrocarbons were Soxhlet-extracted with benzene/methanol and then partitioned into n-pentane. Hydrocarbons were separated from the lipids by column chromatography on a bed of silicagel covered by alumina; both absorbents were deactivated to prevent the formation of artifacts from sensitive components of the lipid fraction. Preparative TLC on activated silicagel mono-, di-, and tri-aromatic hydrocarbons. Individual compounds and compound types were identified from their gas chromatographic retention indices, mass spectra, and UV-spectra. The severe oil contamination of the oysters is evident: (1) The concentration distribution of the aliphatic hydrocarbons is similar to the distribution found in a crude oil. (2) Alicyclic and aromatic hydrocarbons are encountered at higher concentrations than in uncontaminated oysters
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Nadeau R; Singhvi R; Ryabik J; Lin YH; Syslo J; Environment Canada OOCTD (, 1992 199)The U.S. Environmental Protection Agency's Environmental Response Team analyzed samples taken from Marrow Marsh, Galveston Bay, Texas, to assess the efficacy of the August 5, 1990 bioremediation treatment in the marsh ...
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