Samples of surface sediment of St. Johns River Basin were collected,
extracted and their aliphatic hydrocarbons (AH) were determinated
quantitatively and qualitatively by GC-FID and GC-MS Techniques, were used
to characterize the (AH) hydrocarbons
homologous and biomarker
compounds.The sediments contained high organic matter content, while the
hydrocarbons AH represented ٠,٣٥-٢,٧٢٪ of the total organic matter (TOM)
found in sediments.