公开(公告)号：US20050029448A1

公开(公告)日：2005-02-10

申请号：US10726071

申请日：2003-12-01

Applicant: Huan-Cheng Chang ,  Wen-Ping Peng ,  Yong Cai

Inventor： Huan-Cheng Chang ,  Wen-Ping Peng ,  Yong Cai

IPC: H01J49/16 ,  H01J49/42

CPC classification number: H01J49/424 ,  G01N21/6402 ,  G01N21/6428 ,  G01N2021/6419 ,  G01N2021/6441

Abstract: A nanoparticle ion detector includes an ion trap that receives charged particles ejected from a mass selection device. A laser beam illuminates the particles to induce fluorescence, which is detected by the photon detector. Particles are periodically dumped from the ion trap. A mass spectrum of the charged particles can be obtained by comparing signals from the photon detector with the particle ejection characteristics of the mass selection device.

Abstract translation: 纳米颗粒离子检测器包括接收从质量选择装置喷射的带电粒子的离子阱。 激光束照射颗粒以诱导荧光，其由光子检测器检测。 颗粒定期从离子阱中倾倒出来。 通过将来自光子检测器的信号与质量选择装置的粒子喷射特性进行比较，可以获得带电粒子的质谱。

公开(公告)号：US06777673B2

公开(公告)日：2004-08-17

申请号：US10034459

申请日：2001-12-28

Applicant: Huan-Cheng Chang ,  Wen-Ping Peng ,  Yong Cai ,  Shan-Jen Kuo

Inventor： Huan-Cheng Chang ,  Wen-Ping Peng ,  Yong Cai ,  Shan-Jen Kuo

IPC: B01D5444

CPC classification number: H01J49/424 ,  G01N15/1459 ,  G01N15/1463 ,  H01J49/0404 ,  H01J49/165

Abstract: A mass spectrometer that includes an ion source, an ion trap, and a light detection module. The ion trap has two end-cap electrodes and a ring electrode. The ring electrode is positioned relative to the end-cap electrodes to confine a charged particle from the ion source within a confinement region when an audio frequency voltage having a first amplitude is applied between the ring electrode and the two end-cap electrodes. The charged particle is ejected from the ion trap when the audio frequency voltage increases to a second amplitude. The light detection module includes a light source that illuminates the ejected particle and a light detector that detects light scattered from the ejected particle.

Abstract translation: 一种包括离子源，离子阱和光检测模块的质谱仪。 离子阱具有两个端盖电极和环形电极。 当在环形电极和两个端盖电极之间施加具有第一幅度的音频电压时，环形电极相对于端帽电极定位，以将来自离子源的带电粒子限制在约束区域内。 当音频电压增加到第二幅度时，带电粒子从离子阱中排出。 光检测模块包括照射喷射的颗粒的光源和检测从喷出的颗粒散射的光的光检测器。