Analysis of Aromatics in Diesel Motor Fuels by Liquid Chromatography

6 Analysis of Aromatics in Diesel Motor Fuels by Liquid Chromatography 

We would add that this method is applicable to other gas oil cuts by ultimately changing if necessary the standards for refractometric response. 

SARA (Saturates, Aromatics, Resins, Asphaltenes) analysis is widely practiced on heavy fractions such as vacuum and atmospheric residues and vacuum distillates for two purposes  

Chapter 3.. CHARACTERIZATION OF CRUDE OlLS AND PmOLEUM FRACTIONS 

Liquid chromatography is preceded by a precipitation of the asphaltenes, then the maltenes are subjected to chromatography. Although the separation between saturated hydrocarbons and aromatics presents very few problems, this is not the case with the separation between aromatics and resins. In fact, resins themselves are very aromatic and are distinguished more by their high heteroatom content (this justifies the terms, polar compounds or N, S, 0 compounds , also used to designate resins). 

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