期刊
LAB ON A CHIP
卷 19, 期 9, 页码 1633-1643出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9lc00027e
关键词
-
类别
资金
- Defense Advanced Research Projects Agency Microsystems Technology Office (DARPA MTO) under Micro Gas Analyzers Program [017040518]
- U.S. Department of Energy's National Nuclear Security Administration [DE-NA0003525]
- Sandia National Laboratories' Laboratory Directed Research and Development (LDRD) project [199974]
A small, consumable-free, low-power, ultra-high-speed comprehensive GCxGC system consisting of microfabricated columns, nanoelectromechanical system (NEMS) cantilever resonators for detection, and a valve-based stop-flow modulator is demonstrated. The separation of a highly polar 29-component mixture covering a boiling point range of 46 to 253 degrees C on a pair of microfabricated columns using a Staiger valve manifold in less than 7 seconds, and just over 4 seconds after the ensemble holdup time is demonstrated with a downstream FID. The analysis time of the second dimension was 160 ms, and peak widths in the second dimension range from 10-60 ms. A peak capacity of just over 300 was calculated for a separation of just over 6 s. Data from a continuous operation testing over 40 days and 20000 runs of the GCxGC columns with the NEMS resonators using a 4-component test set is presented. The GCxGC-NEMS resonator system generated second-dimension peak widths as narrow as 8 ms with no discernable peak distortion due to under-sampling from the detector.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据