Ion mobility spectrometer migration region with enhanced ion focusing effect
An ion mobility spectrometer and ion focusing technology, which is applied in the field of ion migration, can solve the problems of large gas channel gap volume, weak ion signal, and small volume flow rate, and achieve obvious ion focusing effect, reduced surface area, and good signal quality. Effect
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[0017] The specific structure and implementation process of this solution will be described in detail below through specific embodiments and accompanying drawings.
[0018] Such as figure 1 As shown, in one embodiment of the present invention, a kind of ion mobility spectrometer migration region with enhanced ion focusing effect is disclosed, comprising:
[0019] The electrode 1 in the migration area is a metal cylinder connected with a radio frequency power supply 4; the diameter of the electrode 1 in the migration area is greater than 0CM and less than 2CM.
[0020] The electrode 2 outside the migration area is a metal hollow cylindrical cylinder with a hollow diameter of less than 5 cm; it is connected to the ground electrode 5 and is set outside the electrode 1 in the migration area. Disconnected structure; the spaced disconnected structure here refers to the gap formed after completely cutting out an annular side wall according to a certain width from the cylinder of the...
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