Chinese Journal of Chromatography

Chinese Journal of Chromatography

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Determination of aromatic hydrocarbon types in diesel oil using high performance liquid chromatography with photodiode array detection

LIN Yu1, LI Yi1, BAI Zhengwei1, HE Chengyue1, ZHANG Qi2   

  1. 1.Luoyang Petrochemical Engineering Corporation, Luoyang 471003, China; 2.The Lab of Special Material, Henan University, Kaifeng 475001, China
  • Received:2007-07-19 Revised:2007-11-20 Online:2008-03-30 Published:1984-06-25

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Abstract:

When using ASTM D6591 to determine the content of aromatic hydrocarbons in diesel oil, a photodiode array detector (PDAD) was used to monitor the separation of aromatic hydrocarbons. The influence of back flush time B was studied and it was observed the results of di-aromatic hydrocarbons or poly-aromatic hydrocarbons will give errors when the back flush time is more than B±0.2 min. The PDAD can also be used to determine the best cutting time between mono-aromatic hydrocarbons and di-aromatic hydrocarbons, when the separation was not baseline resolved.

Key words: aromatic hydrocarbon types, diesel oil , photodiode array detection, high performance liquid chromatography (HPLC)