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.

In this study, a total of 25 main compounds of three sauce-aroma Chinese liquors were identified by GC-MS and high-resolution mass spectrometry, and 6 of them (methyl palmitate, ethyl palmitate, methyl linoleate, ethyl linoleate, methyl oleate, and ethyl oleate) were speculated to be characteristic substances of the Maotai series with sauce-aroma type. This study aims to find out the characteristic fingerprint of Chinese liquor and provide a new way for the rapid identification of liquor type and quality. Further experiments are needed to verify the suppose.

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