Non-planar microfabricated gas chromatography column
Abstract
A non-planar microfabricated gas chromatography column comprises a planar substrate having a plurality of through holes, a top lid and a bottom lid bonded to opposite surfaces of the planar substrate, and inlet and outlet ports for injection of a sample gas and elution of separated analytes. A plurality of such planar substrates can be aligned and stacked to provide a longer column length having a small footprint. Furthermore, two or more separate channels can enable multi-channel or multi-dimensional gas chromatography. The through holes preferably have a circular cross section and can be coated with a stationary phase material or packed with a porous packing material. Importantly, uniform stationary phase coatings can be obtained and band broadening can be minimized with the circular channels. A heating or cooling element can be disposed on at least one of the lids to enable temperature programming of the column.
- Inventors:
-
- Albuquerque, NM
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 916926
- Patent Number(s):
- 7273517
- Application Number:
- 11/067,107
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Lewis, Patrick R, and Wheeler, David R. Non-planar microfabricated gas chromatography column. United States: N. p., 2007.
Web.
Lewis, Patrick R, & Wheeler, David R. Non-planar microfabricated gas chromatography column. United States.
Lewis, Patrick R, and Wheeler, David R. Tue .
"Non-planar microfabricated gas chromatography column". United States. https://www.osti.gov/servlets/purl/916926.
@article{osti_916926,
title = {Non-planar microfabricated gas chromatography column},
author = {Lewis, Patrick R and Wheeler, David R},
abstractNote = {A non-planar microfabricated gas chromatography column comprises a planar substrate having a plurality of through holes, a top lid and a bottom lid bonded to opposite surfaces of the planar substrate, and inlet and outlet ports for injection of a sample gas and elution of separated analytes. A plurality of such planar substrates can be aligned and stacked to provide a longer column length having a small footprint. Furthermore, two or more separate channels can enable multi-channel or multi-dimensional gas chromatography. The through holes preferably have a circular cross section and can be coated with a stationary phase material or packed with a porous packing material. Importantly, uniform stationary phase coatings can be obtained and band broadening can be minimized with the circular channels. A heating or cooling element can be disposed on at least one of the lids to enable temperature programming of the column.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 25 00:00:00 EDT 2007},
month = {Tue Sep 25 00:00:00 EDT 2007}
}
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