Title:
Mass spectroscope
Document Type and Number:
Japanese Patent JP5979306
Kind Code:
B2
Abstract:
A list including such information that enables acquisition of an MS n spectrum useful for component identification is stored in advance in a precursor ion list memory unit (33), the information indicating combinations of precursor ions for CIDs in respective stages. If an MS 1 spectrum on which CID is not performed is obtained during execution of an analysis, a precursor ion selector (32) determines whether or not an ion registered as a precursor ion for the first-stage CID exists on the MS 1 spectrum, based on the list held in the memory unit (33). If the ion exists, an MS 2 analysis in which the ion is set as a precursor ion is immediately executed. Subsequently, the precursor ion selector (32) determines whether or not an ion registered as a precursor ion for the second-stage CID in association with the precursor ion for the first-stage CID exists on an MS 2 spectrum. If the ion exists, an MS 3 analysis in which the ion is set as a precursor ion is immediately executed, so that an MS 3 spectrum is acquired. As a result, execution of an unnecessary MS 3 analysis based on an inappropriate combination of precursor ions can be avoided, and information useful for component identification can be efficiently collected.
Inventors:
Yasuo Ogura
Application Number:
JP2015507744A
Publication Date:
August 24, 2016
Filing Date:
March 26, 2013
Export Citation:
Assignee:
SHIMADZU CORPORATION
International Classes:
G01N27/62
Domestic Patent References:
| JP2010117377A | 2010-05-27 | |||
| JP2006317326A | 2006-11-24 |
Foreign References:
| WO2007060760A1 | 2007-05-31 | |||
| WO2007060760A1 | 2007-05-31 | |||
| US20110288779A1 | 2011-11-24 |
Attorney, Agent or Firm:
Kyoto International Patent Office
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