Design of movable contactless conductivity detector for microchip capillary electrophoresis

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原文链接

NETL
IEEE

外文摘要：In this paper a novel detecting device based on movable contactless conductivity detector was described。 The stainless steel mould replaces the silicon and nickel mould to fabricate the capillary electrophoresis chip and overcome the disadvantage of complicated technology and frangibility。 The parameters of hot embossing were optimized。 In the paper a sandwich electrode structure was proposed。 The electrode structure can minimize the stray capacitive direct coupling between the electrodes。 The analytical performance of the detector based on the USB detection system was demonstrated by the detection of alkali metal ions。 Detection limits ranging from 20 down to 5 mum were obtained。

外文关键词：

electrical conductivity measurementelectrochemical electrodeselectrochemical sensorselectrophoresisembossingmouldingstainless steelUSB detection systemalkali metal ions detectionelectrode structurefrangibilityhot embossingmicrochip capillary electrophoresismovable contactless conductivity detectorsandwich electrode structurestainless steel mouldstray capacitive direct couplingCapillary electrophoresisContactless conductivity detectionElectronic circuitPMMA

作者：

Hai-feng Zhang、Xiao-wei Liui、Zhi-cheng Peng、Xi-Lian Wang、Wei Wang、Yu-feng Chen

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作者单位：

MEMS Center, Harbin Inst. of Technol., Harbin

会议名称：

IEEE International Conference on Nano/Micro Engineered and Molecular Systems;NEMS 2009

会议地点：

Shenzhen(CN);Shenzhen(CN)

会议母体文献：

Nano/Micro Engineered and Molecular Systems, 2009. NEMS 2009

页码：

190-193

出版时间：

2009

DOI：

10.1109/NEMS.2009.5068556