Ion mobility spectrometer and recording method using the same

An ion mobility spectrometer (10) comprising the following features: an electrode (1), is arranged on the one ionization source (101); two storage electrodes (5, 5 '), which are respectively disposed on two opposite sides of the electrode (1), wherein ions from an intermediate portion between the two storage electrodes (5, 5') in an inner space of each storage electrode (5, 5 ') are stored and the stored ions from the storage electrodes (5, 5 ') are released by changing electric potentials of the two storage electrodes, and two lead-out electrodes (3, 3 ') each in the vicinity of the two storage electrodes (5, 5') to which the electrode (1) facing sides of the two storage electrodes (5, 5 ') are arranged, wherein the ions from the intermediate part between the two storage electrodes (5, 5 ') to the storage electrodes (5, 5') are guided by electric potential differences between the lead-out electrodes (3, 3 ') and the electrode (1).