Determination of petroleum sulfonates in crude oil by column-switching anion-exchange chromatography

• Liang Zhao ^a,b, ,
• Xu Long Cao ^c, ,
• Hong Yan Wang ^c, ,
• Xia Liu ^a, ,
• Sheng Xiang Jiang ^a,

• a Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;

• b Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100039, China;

• c Geological and Scientific Research Institute, Shengli Oilfield, SINOPEC, Dongying 257015, China

• Received Date: 11 October 2007
  
• Fund Project:

  We are grateful to the National Nature Science Foundation of China (No. 20675085). We are also grateful to the support from the Program of the Light in China's Western Region (2003) and the Province Nature Science Foundation of Gansu (No. 3ZS041-A25-23).