微流控芯片毛细管电泳中电动进样和分离对分离效率的影响  

Effects of electric injection and separation technology on separation efficiency of microfluidic capillary electrophoresis chips.

作　　者：李舟[1] 徐光明[1] 方群[1] 

机构地区：[1]浙江大学化学系微分析系统研究所,浙江杭州310028

出　　处：《浙江大学学报（理学版）》2004年第6期657-660,共4页Journal of Zhejiang University（Science Edition）

基　　金：国家自然科学基金资助重大项目(20299030);国家"863"计划项目(2002AA2Z2042;2002AA404240).

摘　　要：电动进样和分离技术是微流控芯片毛细管电泳分析应用中一项重要的技术环节.通过外加电压调节玻璃基材微芯片"十"字通道内的场强分布,改变分析样品在芯片内电渗流的方向和速率,考察样品的分离效率并得出最佳的外加电压控制方案.The technique of electric injection and seperation is one of the most important technology of Capillary electrophoresis analysis in microfludic chip. Through the voltage alteration, the direction and velocity of the sample's electroosmotic flow in the chip can be controled. Then the seperation efficiency and sensitivity can be examineed and detected. A conclusion about the best scheme of voltage controlling to this type of chip is drawn.

关 键 词：微流控芯片 毛细管电泳 电渗流 电动进样 

分 类 号：O652[理学—分析化学]