Improved hydrocarbon group resolution of olefinic gasolines by adsorption and charge-transfer high-performance liquid chromatography

摘要: Two rapid high-performance liquid chromatographic techniques (< 15 min) for separating light and heavy gasolines into saturated, olefinic aromatic compounds are described. The first one involves adsorption chromatography, the choice of stationary phase (silica gels various specific surface areas) mobile (nature, water content) is discussed in terms performance characteristic petroleum product (boiling point, solubility, etc.). second method based on charge-transfer chromatography with silver-coated silica gel or silver chemically bonded to n-pentane as phase. content not so critical chromatography. Both methods offer a significant improvement resolution, especially between saturated compounds.