发明名称 |
Mass spectrometer and method of analyzing isomers |
摘要 |
The invention intends to determine a presence ratio between mixed compounds which are difficult to separate from each other by a separation unit and cannot be discriminated by MS. In a mass spectrometer with an MSn analysis function for ionizing a sample eluted from a separation unit for separating the sample into individual components, fragmenting an ion of a desired mass number, and performing a mass analysis of fragment ions, the mass spectrometer includes a database storing correlation information between an isomer presence ratio and a particular ion intensity ratio in a mass spectrum per isomer. An isomer ratio can be clarified even for a mixed sample of isomers, such as enantiomers, which are difficult to separate from each other by the separation unit and cannot be discriminated by MS.
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申请公布号 |
US7462817(B2) |
申请公布日期 |
2008.12.09 |
申请号 |
US20070723995 |
申请日期 |
2007.03.23 |
申请人 |
HITACHI HIGH-TECHNOLOGIES CORPORATION |
发明人 |
OGATA IZUMI;ITO SHINYA;NISHIMURA SHIN-ICHIRO;DEGUCHI KISABURO;TAKEGAWA YASUHIRO |
分类号 |
G01N27/62;H01J49/14;B01D59/44;G01N30/02;G01N30/72;G01N30/86;G01N30/88;H01J49/04;H01J49/26;H01J49/42 |
主分类号 |
G01N27/62 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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