Design of high-resolution analysis technique for capillary electrophoresis microchip

Jik Chang Leong, Chien Hsiung Tsai, Lung Ming Fu

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)


In this study, we develop an electrophoresis microfluidic device featuring a conventional cross-form injection system and an expansion chamber located at the inlet of the separation channel. The combined injection system/expansion chamber arrangement is designed to deliver a high-quality sample band into the separation channel such that the detection performance of the device is enhanced. The current microfluidic device is investigated using a sample of Rhodamine B dye. Also, the effects of the expansion chamber on capillary electrophoresis (CE) separation are studied by considering the separation of Hae III-digested φx-174 DNA samples. The results indicate that an expansion chamber with an expansion ratio of 2.5 and an expansion length of 500 μm delivers a sample plug with the correct shape and orientation. The microfluidic device developed in this study has an exciting potential for use in high-performance, high-throughput chemical analysis applications and in many other applications throughout the field of micro-total-analysis systems.

頁(從 - 到)6865-6870
期刊Japanese Journal of Applied Physics
發行號10 A
出版狀態Published - 2007 10月 9

All Science Journal Classification (ASJC) codes

  • 工程 (全部)
  • 物理與天文學 (全部)


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