FOCUSING ION GUIDING APPARATUS AND MASS SPECTROGRAPHIC ANALYSIS APPARATUS

Title:

FOCUSING ION GUIDING APPARATUS AND MASS SPECTROGRAPHIC ANALYSIS APPARATUS

Document Type and Number:

WIPO Patent Application WO/2016/078602

Kind Code:

A1

Abstract:

A focusing ion guiding apparatus and a mass spectrographic analysis apparatus comprising: at least one ion guiding inlet (11) and ion guiding outlet (12) connected to each other via a transport axial line, ions (2) 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 (13) or focusing electrode array to which a focusing voltage is applied, the focusing electrode (13) or focusing electrode array being arranged along the transport axial line, and the focusing electrode structure causing the ions (2) 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 (13) or its bearing substrate (14) to increase a transport velocity of the gas flow in the axial direction and reduce retention or turbulence of the transported ions (2). Moreover, the focusing ion guiding apparatus further provides additional flow conductance confinement on the neutral gas flow, thereby reducing the flow quantity of the passing neutral gas flow to decrease the pump system requirements of post-stage devices.

Inventors:

JIANG GONGYU (CN)
SHEN JIAQI (CN)
SUN WENJIAN (CN)

Application Number:

PCT/CN2015/095000

Publication Date:

May 26, 2016

Filing Date:

November 19, 2015

Export Citation:

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Assignee:

SHIMADZU CORP (JP)
JIANG GONGYU (CN)
SHEN JIAQI (CN)
SUN WENJIAN (CN)

International Classes:

H01J49/04; H01J49/26

Foreign References:

US20120261570A1	2012-10-18
CN101022076A	2007-08-22

Attorney, Agent or Firm:

J.Z.M.C. PATENT AND TRADEMARK LAW OFFICE (Room 5022,No. 335 Guo Ding Road, Yang Pu district, Shanghai 3, CN)

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