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Determination of petroleum sulfonates in crude oil by column-switching anion-exchange chromatography |
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| Authors: | Liang Zhao Xu Long Cao Hong Yan Wang Xia Liu Sheng Xiang Jiang |
| Affiliation: | 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 |
| Abstract: | A column-switching anion-exchange chromatography method was described for the separation and determination of petroleum monosulfonates (PMS)and petroleum disulfonates (PDS)in crude oil that was simply diluted with the dichloromethane/methanol (60140).The high performance liquid chromatography (HPLC)system consisted of a clean-up column and an analytical column,which were connected with two six-port switching valves.Detection of petroleum sulfonates was available and repeatable.This method has been successfully applied to determine PMS and PDS in crude oil samples from Shengli oil field. |
| Keywords: | Petroleum sulfonate Determination Anion-exchange chromatography Column-switching Crude oil |
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