Determination of the Chemical Composition in Asphalt Aqueous Solutions by SPE and GC/MS

摘要

Solid-phase extraction technique with the GC/MS method was adopted to analyze the chemical composition in an asphalt aqueous solution. The results showed that the mainly organic components were phthalates, phenols, polycyclic aromatic hydrocarbons, anilines, heterocyclic nitrogen, sulfur compounds, and surfactants. The oil source and the processing technology determined the kinds and quantities of the organic components. Moreover, organic components changed with aging degree of the asphalt.