发明授权
- 专利标题： Isolating ions in quadrupole ion traps for mass spectrometry
- 专利标题（中）： 在四极离子阱中隔离离子进行质谱分析
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申请号： US10922809申请日： 2004-08-19
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公开(公告)号： US07456396B2公开(公告)日： 2008-11-25
- 发明人: Scott T. Quarmby , Jae C. Schwartz , John E. P. Syka
- 申请人： Scott T. Quarmby , Jae C. Schwartz , John E. P. Syka
- 申请人地址： US CA San Jose
- 专利权人： Thermo Finnigan LLC
- 当前专利权人： Thermo Finnigan LLC
- 当前专利权人地址： US CA San Jose
- 代理机构： Fish & Richardson
- 代理商 Sharon Upham; Charles B. Katz
- 主分类号： H01J49/42
- IPC分类号： H01J49/42
摘要：
Ions in a predefined narrow mass to charge ratio range are isolated in an ion trap by adjusting the field and using ejection frequency waveform(s). Thus the mass-to-charge ratio isolation window is controlled and has an improved resolution without increasing the number of frequency components.
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