主题：【求助】(剩余4)求助4篇英文文献，谢谢！

【序号】：1
【作者】：John E. Wiktorowicz and Joel C. Colburn
【题名】：Separation of cationic proteins via charge reversal in capillary electrophoresis
【期刊】：electrophoresis
【年、卷、期、起止页码】：Volume 11, 1990, Pages 769-773

【序号】：2
【作者】：Tiansong Wang, Richard A. Hartwick
【题名】：Capillary modification and evaluation using streaming potential and frontal chromatography for protein analysis in capillary electrophoresis
【期刊】：Journal of Chromatography A
【年、卷、期、起止页码】：Volume 594, Issues 1-2, 6 March 1992, Pages 325-334

【序号】：3
【作者】：Mingxian Huang, William P. Vorkink and Milton L. Lee
【题名】：High efficiency cross-linked polyacrylamide coating for capillary electrophoresis of proteins
【期刊】：Journal of Microcolumn Separations
【年、卷、期、起止页码】：Volume 4, Issue 3, pages 233–238, May/June 1992

【序号】：4
【作者】：Guiochon G
【题名】：Reflections on analytical separations
【期刊】：AMERICAN LABORATORY
【年、卷、期、起止页码】：Volume: 30, Issue: 18, pages: 14-+,  SEP 1998
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