Journal
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
Volume 16, Issue 5, Pages 1071-1079Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JMEMS.2007.902470
Keywords
chemical transducers; column; gas chromatography (GC); gas detectors; low power; micromachining
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This paper presents the theory, fabrication, and experimental results for a high-performance low-power micro gas chromatography column. The suspended-dielectric I-m-long column is split into two sections, permitting independent pressure and temperature programming. Integrated column heaters have a mean resistance of 16.8 k Omega and a temperature coefficient of resistance of 431 ppm/degrees C. The suspended column requires 11 mW to raise its temperature by 100 degrees C in vacuum (1 mtorr). The column separates ten volatile organic compounds in 52 s and four chemical warfare agent simulants and an explosive simulant in 60 s.
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