Device for characterizing particles and uses thereof

    公开(公告)号:US10998175B2

    公开(公告)日:2021-05-04

    申请号:US16686203

    申请日:2019-11-17

    申请人: Academia Sinica

    IPC分类号: H01J49/00 H01J49/16 H01J49/06

    摘要: Disclosed herein is a device for characterizing a biological sample or an airborne sample. According to embodiments of the present disclosure, the device comprises an electrospray source, a mass analyzer, a charge detector, and optionally, an ion guide. The present device is useful in analyzing the particle population in the biological or airborne sample based on the mass to charge (m/z) ratio and the charge (z) of each particle. Also disclosed herein are the methods of making a diagnosis of cancer by use of the present device, and methods of determining the mass distribution of particles in an airborne sample.

    Molecular ion accelerator
    5.
    发明授权
    Molecular ion accelerator 有权
    分子离子加速器

    公开(公告)号:US08637814B2

    公开(公告)日:2014-01-28

    申请号:US13691785

    申请日:2012-12-01

    申请人: Academia Sinica

    IPC分类号: H01J49/26 H01J49/40

    摘要: A novel system and methods for accelerating analytes including, without limitation, molecular ions, biomolecules, polymers, nano- and microparticles, is provided. The invention can be useful for increasing detection sensitivity in applications such as mass spectrometry, performing collision-induced dissociation molecular structure analysis, and probing surfaces and samples using accelerated analyte.

    摘要翻译: 提供了一种用于加速分析物的新系统和方法,包括但不限于分子离子,生物分子,聚合物,纳米和微粒。 本发明可用于在诸如质谱法,进行碰撞诱导的解离分子结构分析和使用加速分析物的探测表面和样品等应用中提高检测灵敏度。

    Pulsed ion beam source for electrospray mass spectrometry
    6.
    发明授权
    Pulsed ion beam source for electrospray mass spectrometry 有权
    用于电喷雾质谱的脉冲离子束源

    公开(公告)号:US09524859B2

    公开(公告)日:2016-12-20

    申请号:US14450267

    申请日:2014-08-03

    申请人: Academia Sinica

    IPC分类号: H01J49/16 H01J49/04

    CPC分类号: H01J49/165 H01J49/0495

    摘要: Apparatus and methods for creating a pulsed ion beam. The pulsed ion beam can be used for performing mass spectrometry. A pulsed solenoid valve can provide a pulsed ion beam from an electrospray in a pre-vacuum chamber. The pulsed ion beam can enter a high vacuum region and a mass analyzer for mass spectrometry.

    摘要翻译: 用于产生脉冲离子束的装置和方法。 脉冲离子束可用于进行质谱分析。 脉冲电磁阀可以在预真空室中提供来自电喷雾的脉冲离子束。 脉冲离子束可以进入高真空区域,质谱仪可以进行质谱分析。

    Automatic amino acid sequencing of glycopeptide by Y1 ions
    7.
    发明授权
    Automatic amino acid sequencing of glycopeptide by Y1 ions 有权
    通过Y1离子自动氨基酸测序糖肽

    公开(公告)号:US09484193B2

    公开(公告)日:2016-11-01

    申请号:US14298911

    申请日:2014-06-07

    申请人: Academia Sinica

    IPC分类号: H01J49/00 G01N33/68

    摘要: Apparatus and methods for automatic amino acid sequencing of a glycopeptide by mass spectrometry. The glycopeptide is fragmented by higher energy collision dissociation fragmentation, and sequentially fragmented by collision induced dissociation fragmentation. The glycopeptide Y1 ion is isolated, and the mass spectra of fragmented glycopeptide Y1 ions provide mass spectral peaks corresponding to the amino acid sequence of the glycopeptide.

    摘要翻译: 通过质谱法对糖肽进行自动氨基酸测序的装置和方法。 糖肽通过较高的能量碰撞解离断裂而碎裂,并通过碰撞诱导的解离片段依次碎裂。 分离糖肽Y1离子,碎片糖肽Y1离子的质谱提供对应于糖肽的氨基酸序列的质谱峰。

    HIGH PERFORMANCE LIQUID CHROMATOGRAPHY WITH UV-VISIBLE DETECTION
    8.
    发明申请
    HIGH PERFORMANCE LIQUID CHROMATOGRAPHY WITH UV-VISIBLE DETECTION 审中-公开
    高性能液相色谱与紫外可见检测

    公开(公告)号:US20150143880A1

    公开(公告)日:2015-05-28

    申请号:US14551050

    申请日:2014-11-23

    申请人: Academia Sinica

    IPC分类号: G01N30/74

    CPC分类号: G01N30/74 G01N21/33

    摘要: Apparatus and methods for high performance liquid chromatography. The apparatus includes a preparation loop comprising two linear stepping pumps, a sample loop comprising a sample injector, a chromatography column, and a detector device. The detector device can include a flash lamp, a flow cell, and a light sensor comprising an entrance slit, a grating; and a charge-coupled device array.

    摘要翻译: 高效液相色谱仪的设备和方法。 该装置包括一个包括两个线性步进泵的制备回路,一个样品回路,包括一个样品注射器,一个色谱柱和一个检测器装置。 检测器装置可以包括闪光灯,流动池和包括入口狭缝,光栅的光传感器; 和电荷耦合器件阵列。

    PULSED ION BEAM SOURCE FOR ELECTROSPRAY MASS SPECTROMETRY
    9.
    发明申请
    PULSED ION BEAM SOURCE FOR ELECTROSPRAY MASS SPECTROMETRY 有权
    用于电泳质谱分析的脉冲离子束源

    公开(公告)号:US20150136973A1

    公开(公告)日:2015-05-21

    申请号:US14450267

    申请日:2014-08-03

    申请人: Academia Sinica

    CPC分类号: H01J49/165 H01J49/0495

    摘要: Apparatus and methods for creating a pulsed ion beam. The pulsed ion beam can be used for performing mass spectrometry. A pulsed solenoid valve can provide a pulsed ion beam from an electrospray in a pre-vacuum chamber. The pulsed ion beam can enter a high vacuum region and a mass analyzer for mass spectrometry.

    摘要翻译: 用于产生脉冲离子束的装置和方法。 脉冲离子束可用于进行质谱分析。 脉冲电磁阀可以在预真空室中提供来自电喷雾的脉冲离子束。 脉冲离子束可以进入高真空区域,质谱仪可以进行质谱分析。

    DIRECT MEASUREMENTS OF NANOPARTICLES AND VIRUS BY VIRUS MASS SPECTROMETRY
    10.
    发明申请
    DIRECT MEASUREMENTS OF NANOPARTICLES AND VIRUS BY VIRUS MASS SPECTROMETRY 有权
    通过病毒质谱法直接测定纳米颗粒和病毒

    公开(公告)号:US20140346344A1

    公开(公告)日:2014-11-27

    申请号:US14274707

    申请日:2014-05-10

    申请人: Academia Sinica

    摘要: Apparatus and methods for performing mass spectrometry of a nanoparticle or virus analyte. Apparatus may include a laser desorption plate, a mass analyzer configured to measure mass over the range of m/z from 105 to 1010, an electrical shield surrounding the mass analyzer, and a charge sensitive detector, wherein the laser firing is phase lock synchronized with the applied radiofrequency voltages.

    摘要翻译: 用于进行纳米颗粒或病毒分析物的质谱分析的装置和方法。 设备可以包括激光解吸板,质量分析器,被配置为测量从105到1010的m / z范围内的质量,围绕质量分析器的电屏蔽,以及电荷敏感检测器,其中激光点火与 应用的射频电压。