Health & Environmental Research Online (HERO)


Print Feedback Export to File
8260749 
Meetings & Symposia 
Multi-dimensional HPLC determination of aromatic core content, mass compostion and aliphatic side chain distriubtions in hydrocarbon fractions of heavy distillates 
Khan, AZ; Brett, IC 
2004 
49 
2 
487-491 
English 
A multi-dimensional HPLC, comprising two detectors and normal phase columns and operating under isocratic and gradient modes and offering a number of advantages that makes it an attractive tool for heavy distillate analyses and that no other modern technique can offer was presented. The hydrocarbon group-type separation was conducted using two normal phase columns: a propylaminocyano column for separation of saturates and mono-aromatics and a dinitroaminopropyl column for separation of di-, tri-, tetra-, and polar aromatics. The starting cut points were based on hexadecane, nonadecylbenzene, naphthalene, dibenzothiophene, and pyrene. The system provided data for 20 key parameters from a single sample injection, virtually eliminating the tedious sample preparation procedure and reducing the lengthy run times required by other techniques.