Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.4605a&link_type=abstract
American Astronomical Society, DPS meeting #41, #46.05
Astronomy and Astrophysics
Astronomy
Scientific paper
Mass spectrometers are an important analytical tool in planetary exploration because of their high chemical specificity, high sensitivity, and the application to a wide variety of sample and analyte types. We have developed a novel miniature ion trap mass spectrometer using microfabrication techniques. The mass analyzer is made using two ceramic plates, the facing surfaces of which are patterned with electrodes using microlithography. Appropriate electrical potentials applied to the patterns yield quadrupole trapping fields. High mass resolution, in excess of 1000, has been demonstrated in the lab. This device combines small size, low mass, excellent mechanical ruggedness, and low-power operation. Tandem mass analysis has been demonstrated, and would be particularly useful in identification of unknown compounds. Funding on this development has been from the NASA Planetary Instrument Definition and Development Program.
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