Microfluidic Chip-Based Flow Injection System for Gas Diffusion Separation with an Evaporation Pump Drive

摘要：

A microchip-based flow injection system integrating gas diffusion separation with liquid core waveguide (LCW) photometric detection is presented with an evaporation micropump as fluid drive. The system was applied to the determination of ammonium ions. A reproducibility of 6.7％ RSD (n=5) was achieved using an 1 mM NH<+><,4> standard. The limit of detection for NH<+><,4> was 50μM (3σ). A sample throughput of 36h<- 1> was achieved with a sample consumption of 50nL for each cycle.

关键词： Microfluidic chip Gas diffusion separation Flow injection Ammonium Evaporation pump

作者: Hong-Xin Jia Shi-Li Wang Yan-Xia Guan Zhao-Lun Fang

作者单位: Northeastern University, Research Center for Analytical Sciences, Shenyang, China Liaoning Center fo Northeastern University, Research Center for Analytical Sciences, Shenyang, China

会议类型: 国际会议

会议名称: The First Shenyang International Colloquium on Micrifluidics(首届沈阳国际微流控学术论坛)

会议地点: 沈阳

会议语种:英文

页码: 90-91

在线出版日期: 2007-10-21（万方平台首次上网日期，不代表论文的发表时间）