![ION EJECTION FROM A QUADRUPOLE ION TRAP](/abs-image/US/2016/08/04/US20160225603A1/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: ION EJECTION FROM A QUADRUPOLE ION TRAP
- 专利标题(中):离子离子由四倍子离子捕获
- 申请号:US15093152 申请日:2016-04-07
- 公开(公告)号:US20160225603A1 公开(公告)日:2016-08-04
- 发明人: Christian Albrecht HOCK , Dmitry GRINFELD , Richard HEMING
- 申请人: Thermo Fisher Scientific (Bremen) GmbH
- 专利权人: Thermo Fisher Scientific (Bremen) GmbH
- 当前专利权人: Thermo Fisher Scientific (Bremen) GmbH
- 优先权: GB1409074.0 20140521
- 主分类号: H01J49/42
- IPC分类号: H01J49/42 ; H01J49/40
摘要:
A method of ejecting ions to be analyzed from a quadrupole ion trap in which a trapping field is created by one or more RF voltages applied to one or more electrodes of the trap, the method comprising the steps of cooling the ions to be analyzed within the quadrupole ion trap until the ions are thermalized, reducing the amplitude of one or more RF voltages applied to the quadrupole ion trap and applying the reduced amplitude RF voltages for one half cycle after the one or more RF voltages have reached a zero crossing point, turning off the RF voltages applied to the quadrupole ion trap, and ejecting the ions to be analyzed from the quadrupole ion trap.
摘要(中):
从四极离子阱中排出要分析的离子的方法,其中通过施加到阱的一个或多个电极的一个或多个RF电压产生捕获场,该方法包括以下步骤:将待分析的离子冷却在 四极离子阱,直到离子被热化,减少施加到四极离子阱的一个或多个RF电压的幅度,并且在一个或多个RF电压已经达到过零点之后将减小幅度的RF电压施加一个半周期,转动 关闭施加到四极离子阱的RF电压,并从四极离子阱中喷射待分析的离子。
公开/授权文献:
- US09548195B2 Ion ejection from a quadrupole ion trap 公开/授权日:2017-01-17