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Title:
MASS SPECTROMETER
Document Type and Number:
Japanese Patent JP2007115434
Kind Code:
A
Abstract:

To provide a mass spectrometer capable of performing CID dissociation, even for sample molecules having large molecular weight.

The mass spectrometer is composed of an ionization part 10 ionizing the sample, mass separation parts 40, 60 mass separating the sample ion, a detection part 20 detecting the mass-separated ions, a collision part (collision cell) 51 arranged on an ion passage, extending from the ionization part 10 to the detection part 20 up to the mass separation parts 40, 60, and a cluster-generating device 30 generating cluster of prescribed atoms or molecules. The cluster, generated at the cluster-generating device 30, is introduced into the collision part 51. The collision energy of the sample ions can be used effectively for dissociation of the ions, by using the clusters having large mass number as target gas for CID.


Inventors:
Furuhashi, Osamu
Ogawa, Kiyoshi
Application Number:
JP2005000303162
Publication Date:
May 10, 2007
Filing Date:
October 18, 2005
Export Citation:
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Assignee:
SHIMADZU CORP
International Classes:
H01J49/42; G01N27/62
Domestic Patent References:
JP2003223864A
JP2002181785A
JPH08180830A
JP2002184349A
Foreign References:
US4234791A
Attorney, Agent or Firm:
小林 良平