Citation: Su Xuan GONG, Tao BO, Lan HUANG, Ke An LI, Hu Wei LIU. Separation of Biphenyl Nitrile Compounds by Microemulsion Electrokinetic Chromatography with Mixed Surfactants[J]. Chinese Chemical Letters, ;2004, 15(9): 1063-1066. shu

Separation of Biphenyl Nitrile Compounds by Microemulsion Electrokinetic Chromatography with Mixed Surfactants

Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871

Received Date: 29 July 2003

Fund Project: This study is financially supported by the National Natural Science Foundation of China (NNSFC, Grant No.20275001 and Grant No.20335010).

A mixture of nine biphenyl nitrile compounds with high hydrophobicity and similar structures was successfully separated by microemulsion electrokinetic chromatography (MEEKC) within 30 min. The buffer system contained 100 mmol/L sodium dodecyl sulfate (SDS), 80 mmol/L sodium cholate (SC), 0.81% heptane, 7.5% n-butanol, 10% acetonitrile and 10 mmol/L borate. The addition of SC, organic modifiers, sample preparation and temperature all showed remarkable effect on the separation. Meanwhile, the MEEKC method was briefly compared with micellar electrokinetic chromatography (MEKC) method.
- Microemulsion electrokinetic chromatography,
- separation,
- mixed surfactant,
- biphenyl nitrile compounds,
- micellar electrokinetic chromatography
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