公开(公告)号：US06791080B2

公开(公告)日：2004-09-14

申请号：US10367917

申请日：2003-02-19

申请人： Vladimir M. Doroshenko ,  Victor V. Laiko ,  Phillip V. Tan

发明人： Vladimir M. Doroshenko ,  Victor V. Laiko ,  Phillip V. Tan

IPC分类号： H01J4904

CPC分类号： H01J49/403

摘要： An apparatus and a method which produce a pulse of ions, generate a transient electric field correlated in time with a duration of the pulse of ions, receive the pulse of ions into the transient electric field, and collect the ions from an ion drift region of the transient electric field into a gas dynamic flow region of the mass analyzer. As such, an apparatus for transferring ions into a mass analyzer includes an ion source configured to generate the pulse of ions, a transient electric field device configured to receive the pulse of ions and generate the transient electric field, and an ion collector configured to collect the ions from the ion drift region and transfer the ions into the mass analyzer.

摘要翻译： 产生离子脉冲的装置和方法产生时间上与离子脉冲持续时间相关的瞬时电场，将离子脉冲接收到瞬态电场中，并从离子漂移区域 瞬态电场进入质量分析仪的气体动态流动区域。 因此，用于将离子转移到质量分析器中的装置包括被配置为产生离子脉冲的离子源，被配置为接收离子脉冲并产生瞬态电场的瞬态电场装置，以及被配置为收集离子的离子收集器 来自离子漂移区域的离子并将离子转移到质谱仪中。

公开(公告)号：US07122789B2

公开(公告)日：2006-10-17

申请号：US10842481

申请日：2004-05-11

申请人： Phillip V. Tan ,  Victor V. Laiko ,  Vadym Berkout ,  Vladimir M. Doroshenko

发明人： Phillip V. Tan ,  Victor V. Laiko ,  Vadym Berkout ,  Vladimir M. Doroshenko

IPC分类号： B01D59/44 ,  H01J49/00

CPC分类号： H01J49/164 ,  H01J49/0404

摘要： A method and an apparatus for collecting ions in which ions are produced from a sample in an ion source. An electric field is provided that is more uniform in an area adjacent the sample than in an area adjacent an inlet to the ion transfer device or that is larger in field strength at the sample than at a point removed from the sample towards the inlet of the ion transfer device. Ions are received into the electric field and transferred through the ion transfer device to a sampling orifice of the mass spectrometer. The apparatus includes an ion transfer device coupled to a sampling orifice of a mass spectrometer. The ion transfer device has an inlet with a surface that extends in a direction from an axis of the ion transfer device. The ion transfer device can extend a distance of at least 10 times an inner diameter of a sampling orifice of the mass spectrometer.

摘要翻译： 用于收集离子的方法和装置，其中离子源中的样品产生离子。 提供电场，其在靠近样品的区域中比邻近离子转移装置的入口的区域更均匀，或者在样品处的场强大于在从样品朝向所述样品的入口移除的点 离子转移装置。 离子被接收到电场中并通过离子传递装置传送到质谱仪的采样孔。 该装置包括耦合到质谱仪的采样孔的离子传递装置。 离子转移装置具有从离子转移装置的轴线方向延伸的表面的入口。 离子转移装置可以延伸质谱仪的采样孔的内径的至少10倍的距离。

公开(公告)号：US06943346B2

公开(公告)日：2005-09-13

申请号：US10639508

申请日：2003-08-13

申请人： Phillip V. Tan ,  Vladimir M. Doroshenko

发明人： Phillip V. Tan ,  Vladimir M. Doroshenko

IPC分类号： H01J49/04 ,  H01J49/16 ,  H01J49/40 ,  B01D54/44

CPC分类号： H01J49/164 ,  H01J49/0445

摘要： An apparatus and method for generating ions from an aerosol and transferring the ions into a mass analyzer. In the apparatus and method, an aerosol beam is generated, the aerosol beam is directed to a spatial volume outside the mass analyzer, particles in the aerosol beam are ionized to produce the ions, and the ions are collected into the mass analyzer. As such the apparatus includes respectively an aerosol beam generator, an ion source generator, and an ion collector.