Miniature ion mobility spectrometer cell

摘要: A miniature ion mobility spectrometer call using resistive coated ceramic electrodes is described. Its construction, performance and results of parametric studies are reported. The cell has a total current in the range 1 to 8*10-10 minimum baseline 1.9*10-11 A. less difference affects sensitivity through scaling relationships with reactant product currents. Because membrane inlet used for sample introduction, carrier drift gas flow rates both affect sensitivity. Although protonated quasi-molecular ions molecules found be stable cell, dimer dissociate higher electric fields which can applied cell. Resolution peaks scales as two-thirds power length squared divided by gate width shutter grid. microprocessor-controlled environmental monitoring system been assembled sensor.