Title:
FLIGHT TIME TYPE MASS SPECTROMETRY DEVICE
Document Type and Number:
Japanese Patent JP3967694
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a flight time type mass spectrometry device which can cut off at this side of an ion reserve much of ions originating in a carrier gas that are introduced in a large quantity from a gas chromatograph device and ionized in a large quantity at an ion source.
SOLUTION: The electron bombarded ion source comprises a source magnet that deflects a part of generated ions from the center axis direction of the ion reserve, and at the rear stage of the electron bombarded ion source, an electrostatic lens that further assists the deflection of ion by the source magnet and a differential discharge slit for cutting off the deflected ion are provided.
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Inventors:
Takaya Sato
Yoshihiro Nukina
Mitsuyasu Iwanaga
Tatsuji Kobayashi
Yoshihiro Nukina
Mitsuyasu Iwanaga
Tatsuji Kobayashi
Application Number:
JP2003182468A
Publication Date:
August 29, 2007
Filing Date:
June 26, 2003
Export Citation:
Assignee:
JEOL Ltd.
International Classes:
G01N27/62; H01J49/40; G01N27/64; G01N30/72; H01J49/06; (IPC1-7): H01J49/40; G01N27/62; G01N27/64; H01J49/06
Domestic Patent References:
| JP62168328A | ||||
| JP2000260388A | ||||
| JP2000251831A | ||||
| JP2003123685A | ||||
| JP5062643A | ||||
| JP4501189A | ||||
| JP10172504A |
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