Apparatus and method for performing microfluidic manipultions for chemical analysis and synthesis
申请人:LOCKHEED MARTIN ENERGY SYSTEMS, INC.
公开号:EP1162455A1
公开(公告)日:2001-12-12
A microchip laboratory system (10) and method provide fluidic manipulations for a variety of applications, including sample injection for microchip chemical separations. The microchip is fabricated using standard photolithographic procedures and chemical wet etching, with the substrate and cover plate joined using direct bonding. Capillary electrophoresis and electrochomatography are performed in channels (26, 28, 30, 32, 34, 36, 38) formed in the substrate. Analytes are loaded into a four-way intersection of channels by electrokinetically pumping the analyte through the intersection (40), followed by a switching of the potentials to force an analyte plug into the separation channel (34).
微芯片实验室系统(10)和方法可为各种应用提供流体操作,包括用于微芯片化学分离的样品注入。微芯片采用标准光刻程序和化学湿法蚀刻工艺制作,基片和盖板采用直接键合方式连接。毛细管电泳和电层析在基片上形成的通道(26、28、30、32、34、36、38)中进行。通过电动力泵将分析物通过交叉点(40),然后切换电位,将分析物塞入分离通道(34),从而将分析物装入通道的四向交叉点。