用于微芯片电泳的通用串行总线供电的微型高压电源的开发。

Development of a universal serial bus-powered mini-high-voltage power supply for microchip electrophoresis.

作者信息

Jiang Lei, Jiang Xuening, Lu Yao, Dai Zhongpeng, Xie Minhao, Qin Jianhua, Lin Bingcheng

机构信息

Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, PR China.

出版信息

Electrophoresis. 2007 Apr;28(8):1259-64. doi: 10.1002/elps.200600550.

DOI:10.1002/elps.200600550

PMID:17377944

Abstract

We describe a miniature high-voltage power supply (HVPS) with dimensions of 4.7 x 5.6 x 2.5 cm (W x L x H) powered by universal serial bus (USB) ports. Two strategies were adopted to ensure its efficient power usage. (i) Only two high-voltage converters (one positive and one negative) and two relays were used for power saving, while keeping the sample plug stable and well-defined and avoiding sample leakage for microchip electrophoresis. (ii) The components and their running modes were specially designed to decrease power waste according to the feature of different periods of the microchip electrophoresis process. Performance of this USB-based mini-HVPS was demonstrated using sodium fluorescein analyte with microchip electrophoresis/LIF detection.

摘要

我们描述了一种尺寸为4.7×5.6×2.5厘米（宽×长×高）的微型高压电源（HVPS），由通用串行总线（USB）端口供电。采用了两种策略来确保其高效用电。（i）仅使用两个高压转换器（一个正极和一个负极）和两个继电器以节省电力，同时保持样品插头稳定且定义明确，并避免微芯片电泳出现样品泄漏。（ii）根据微芯片电泳过程不同阶段的特点，对组件及其运行模式进行了专门设计，以减少功率浪费。使用荧光素钠分析物通过微芯片电泳/激光诱导荧光检测展示了这种基于USB的微型HVPS的性能。