Focusing ion guiding apparatus and mass spectrographic analysis apparatus

A focusing ion guiding apparatus, comprising:

• at least one ion guiding inlet and ion guiding outlet connected to each other via a transport axial line, ions being transported in an axial direction along the transport axial line;
• at least one group of focusing electrode structures comprising at least one smooth and non-concave focusing electrode or focusing electrode array to which a focusing voltage is applied, the focusing electrode or focusing electrode array being arranged along the transport axial line, and the focusing electrode structure causing the ions transported in the focusing ion guiding apparatus to be radially focused for many times under the action of a focusing electric field formed by the focusing electrode structure;
• and
• a neutral gas flow transported in the axial direction, a diffusion path of the gas flow in an at least partially radial direction relative to the axial direction being blocked by the focusing electrode or a bearing substrate thereof to increase a transport velocity of the gas flow in the axial direction and reduce retention or turbulence of the transported ions.