Fractionation of Aliphatic and Aromatic Hydrocarbons in Petroleum Extracts Form

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The composition of petroleum is a complex mixture of hundreds of different hydrocarbon compounds. The resultant makeup of hydrocarbons released into the environment is variable and dependent on the conditions to which it is subsequently exposed. While in the environment, petroleum composition is influenced by a number of factors including volatilization, leaching, and/or biological degradation. These environmental effects yield a mixture whose toxicological properties can be vastly different than the parent product.

This application note describes the fractionation of aliphatic and aromatic hydrocarbons in petroleum extracts using UCT’s EPH silica gel SPE cartridges.The fractionation of the total extractable petroleum hydrocarbons (EPH) is necessary to determine the concentration of the aliphatic versus aromatic compounds. The silica gel product is shown to provide a reliable method for the cleanup and fractionation of EPH in environmental samples.

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