摘要
针对微流控分析芯片样品剂量少与微流体芯片集成等要求,设计了两种易于集成在芯片内的,用分光光度法对混合后液体的吸收光谱进行探测的方法。实验利用460～800nm的可见光光源,采用了直接探测法和消逝波探测法对样品进行探测。通过两种方法的比较证明:直接探测法具有原理简单、消耗样品量少、结构容易实现等优点;消逝波探测法具有需要样品量极少、灵敏度高、易于集成等优点。
For the need of fluidic chip which consumes fewer specimens and is easy to integrate with micro-fluid chip,two kinds of spectrophotometric analysis methods are designed.Both direct detection method and evanescent wave detection method are used in the experiments by visible light(460～800 nm).The experimental results proved that direct detection method is simple and easy to realize,and to consume fewer reagents;on the other hand,evanescent wave detection method consumes far fewer reagents,and it is sensitive to the reagent and easy to integrate on the chip.
出处
《传感器技术》
CSCD
北大核心
2004年第2期18-20,共3页
Journal of Transducer Technology
基金
国家863MEMS重大专项经费支持(2003AA404181)
中国科学院二期创新项目
