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Title: Sub-to super-ambient temperature programmable microfabricated gas chromatography column

Patent ·
OSTI ID:1174764

A sub- to super-ambient temperature programmable microfabricated gas chromatography column enables more efficient chemical separation of chemical analytes in a gas mixture by combining a thermoelectric cooler and temperature sensing on the microfabricated column. Sub-ambient temperature programming enables the efficient separation of volatile organic compounds and super-ambient temperature programming enables the elution of less volatile analytes within a reasonable time. The small heat capacity and thermal isolation of the microfabricated column improves the thermal time response and power consumption, both important factors for portable microanalytical systems.

Research Organization:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
6,706,091
Application Number:
10/326,033
OSTI ID:
1174764
Country of Publication:
United States
Language:
English

References (2)

Microfabricated silicon gas chromatographic microchannels: fabrication and performance conference August 1998
Hand-Held Miniature Chemical Analysis System (μChemlab) for Detection of Trace Concentrations of Gas Phase Analytes book January 2000