电泳芯片无接触电导检测器的理论研究  

Theoretical Study of Contactless Conductivity Detector for Electrophoresis Chip

作　　者：李霞[1] 温志渝[1] 温中泉[1] 

机构地区：[1]重庆大学光电工程学院,重庆400044

出　　处：《色谱》2004年第5期469-471,共3页Chinese Journal of Chromatography

基　　金：国家自然科学基金资助项目(No.90307015);重庆市自然科学基金资助项目(No.8147;No.8148).

摘　　要：目前电泳芯片大多数采用的是光学检测的方法,这为电泳芯片的微型化、一体化集成带来了一定的难度。为此,设计了一种新的电泳芯片高频无接触电导检测器,并对这种新型的检测器进行了理论研究和分析,建立了高频电导检测器等效电路模型,对高频电导检测器的结构进行了设计;综合考虑区带展宽等因素,确定了检测器的结构尺寸。该检测器具有应用范围广、结构简单、易于一体化集成的特点。Currently most electrophoresis chips use optical detection methods, which brings some difficulties in micromation and integration of electrophoresis chips. In order to solve this problem, a new high-frequency contactless conductivity detector for electrophoresis chip is designed. At the same time, theoretical study and analysis of this new detector are carried out, based on the construction of an equivalent circuit mode of high-frequency conductivity detector and the design of the structure. With the consideration of many factors including band broadening, the dimensions of the structure were designed and optimized. In summary, the detector has many advantages such as wide application range, simple structure and easy integration.

关 键 词：毛细管电泳 微型机电系统 无接触电导检测 

分 类 号：O658[理学—分析化学]