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Proceedings Paper

Modeling transport in gas chromatography columns for the Micro-ChemLab
Author(s): C. Channy Wong; Douglas R. Adkins; Gregory C. Frye-Mason; Mary L. Hudson; Richard J. Kottenstette; Carolyn M. Matzke; John N. Shadid; Andrew G. Salinger
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Paper Abstract

The gas chromatography (GC) column is a critical component in the microsystem for chemical detection ((mu) ChemLabTM) being developed at Sandia. The goal is to etch a `meter-long' GC column onto a 1-cm2 silicon chip while maintaining good chromatographic performance. Our design strategy is to use modeling and simulation approach. We have developed an analytical tool that models the transport and surface interaction process to achieve an optimized design of the GC column. This analytical tool has a flow module and a separation module. The flow module considers both the compressibility and slip flow effects that may significantly influence the gas transport in a long and narrow column. The separation module models analyte transport and physico-chemical interaction with the coated surface in the GC column. It predicts the column efficiency and performance. Results of our analysis will be presented in this paper.

Paper Details

Date Published: 19 August 1999
PDF: 10 pages
Proc. SPIE 3877, Microfluidic Devices and Systems II, (19 August 1999); doi: 10.1117/12.359329
Show Author Affiliations
C. Channy Wong, Sandia National Labs. (United States)
Douglas R. Adkins, Sandia National Labs. (United States)
Gregory C. Frye-Mason, Sandia National Labs. (United States)
Mary L. Hudson, Sandia National Labs. (United States)
Richard J. Kottenstette, Sandia National Labs. (United States)
Carolyn M. Matzke, Sandia National Labs. (United States)
John N. Shadid, Sandia National Labs. (United States)
Andrew G. Salinger, Sandia National Labs. (United States)

Published in SPIE Proceedings Vol. 3877:
Microfluidic Devices and Systems II
Chong Hyuk Ahn; A. Bruno Frazier, Editor(s)

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