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基于硅基的高性能微型富集器设计研究

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摘要 微型富集器是微型样品预处理系统中的核心器件,其功能是实现低浓度样品的富集,解决便携式色谱仪无法直接检测极低浓度样品的瓶颈.将便携式色谱仪的浓度探测能力提升1~2个数量级。本文设计了一种四通道并行结构,每一通道内设计有大量的星形立柱,以增大样品容量;为了提高富集效率,采用了大体表面积的单壁碳纳米管作为吸附材料。实验结果表明,设计的微型富集器对苯的富集率可达100,色谱峰展宽得到明显的改善.
出处 《计量技术》 2017年第6期19-21,共3页 Measurement Technique
基金 安徽省教育厅2017年省级自然科学研究项目资助
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