An array-based sensing system based on 32 polymer/carbon composite conductometric sensors is under development at JPL.Until the present phase of development,the analyte set has focused on organic compounds (common solvents) and a few selected inorganic compounds,notably ammonia and hydrazine.The present phase of JPL ENose development has added two inorganics to the analyte set:mercury and sulfur dioxide.Through models of sensor-analyte response developed under this program coupled with a literature survey,approaches to including these analytes in the ENose target set have been determined.
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