微流控非接触电导检测芯片的设计与模拟  

Designing and Simulation of Contactless Conductivity Detection Microfluidic Chip

作　　者：赵苹[1] 傅崇岗[1] 王立新[2] 

机构地区：[1]聊城大学化学化工学院,聊城252059 [2]聊城大学传媒技术学院,聊城252059

出　　处：《理化检验（化学分册）》2011年第8期877-881,共5页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

基　　金：国家自然科学基金(No.20675036);山东省自然科学基金(Y2006B04)

摘　　要：采用微加工技术制作了微芯片非接触电导检测系统。考察了激励电压、激励频率、样品溶液浓度对输出信号的影响,采用wewb 5.0软件对检测池的模拟电路进行了仿真模拟。通过比较试验和模拟结果,发现两者具有较好的一致性,说明模拟电路较好地反映了非接触电导检测池的电气特性。By applying the micro〉fabrication technology, a contactless conductivity detection （CCD） mierofluidic chip was fabricated. Various factor influential to the magnitude of output signal of the microchip system, including the excitation voltages, excitation frequency and concentrations of sample solutions and carrier solutions etc. , were studied and optimized. The electrical characteristics of the CCD cell were studied by simulating the simulation circuit of the detection cell with the software of wewb 5.0. As shown by the experimental results, good consistency was obtained and the simulation circuit represented equivalently the electrical characteristics of the CCD cell.

关 键 词：微流控芯片 非接触电导检测池 等效电路模拟 

分 类 号：O657.8[理学—分析化学]