IONIC MOBILITY ANALYZER AND IONIC MOBILITY-SEPARATOR/MASS-SPECTROSCOPY COMPOSITE APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an ionic mobility separation filter of low cost and high ion transmissivity, capable of allowing ions in a specific ionic mobility range to pass at atmospheric pressure.;SOLUTION: The apparatus comprises an ion source, a first drift region in which the direction of a direct current electric field is opposite to the gas low direction, a second drift region in which the direction of applying a direct current electric field is opposite to a gas flow direction different from the gas flow direction in the first drift region, an intermediate region having an electric field to proceed ions between the first and second drift regions, and a detector to detect ions passing through the first and second regions.;COPYRIGHT: (C)2009,JPO&INPIT