Toward a Micro Gas Chromatograph/Mass Spectrometer (GC/MS) System

Details Toward a Micro Gas Chromatograph/Mass Spectrometer (GC/MS) System Toward a Micro Gas Chromatograph/Mass Spectrometer (GC/MS) System

Jan 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001iaop.work...92w&link_type=abstract

Forum on Innovative Approaches to Outer Planetary Exploration 2001-2020, p. 92

Other

Gas Chromatography, Miniaturization, Microelectromechanical Systems, Mass Spectroscopy, Space Exploration, Technology Utilization, Lithography

Scientific paper

Miniature mass filters (e.g., quadrupoles, ion traps) have been the subject of several miniaturization efforts. A project is currently in progress at JPL to develop a miniaturized Gas Chromatograph/Mass Spectrometer (GC/MS) system, incorporating and/or developing miniature system components including turbomolecular pumps, scroll type roughing pump, quadrupole mass filter, gas chromatograph, precision power supply and other electronic components. The preponderance of the system elements will be fabricated using microelectromechanical systems (MEMS) techniques. The quadrupole mass filter will be fabricated using an X-ray lithography technique producing high precision, 5x5 arrays of quadrupoles with pole lengths of about 3 mm and a total volume of 27 cubic mm. The miniature scroll pump will also be fabricated using X-ray lithography producing arrays of scroll stages about 3 mm in diameter. The target detection range for the mass spectrometer is 1 to 300 atomic mass units (AMU) with are solution of 0.5 AMU. This resolution will allow isotopic characterization for geochronology, atmospheric studies and other science efforts dependant on the understanding of isotope ratios of chemical species. This paper will discuss the design approach, the current state-of-the art regarding the system components and the progress toward development of key elements. The full system is anticipated to be small enough in mass, volume and power consumption to allow in situ chemical analysis on highly miniaturized science craft for geochronology, atmospheric characterization and detection of life experiments applicable to outer planet roadmap missions.

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