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    • 51. 发明申请
    • DIFFERENTIAL MOBILITY SPECTROMETER AND METHODS THEREOF
    • 差分移动光谱仪及其方法
    • US20140264009A1
    • 2014-09-18
    • US14361378
    • 2012-11-21
    • DH Technologies Development Pte. Ltd.
    • John Lawrence CampbellYves LeBlanc
    • G01N27/62
    • G01N27/624G01N27/622G01N33/6848H01J49/0072
    • An apparatus and method are provided for analyzing samples of molecules. The apparatus comprises a mass analysis system including a differential mobility spectrometer, which includes at least three filter electrodes defining two ion flow paths where the filter electrodes generate electric fields for passing through selected portions of the sample ions based on the mobility characteristics of the sample ions. The differential mobility spectrometer also includes a voltage source that provides DC and RF voltages to at least one of the filter electrodes to generate the electric field, a first and a second ion inlet that receive sample ions, and an ion outlet that outputs the selected portion of the sample ions. A mass spectrometer receives some or all of the selected portion of the sample ions.
    • 提供了用于分析分子样品的装置和方法。 该装置包括质量分析系统,其包括差动迁移谱仪,其包括限定两个离子流动路径的至少三个过滤器电极,其中过滤电极基于样品离子的迁移率特性产生用于穿过样本离子的选定部分的电场 。 差动迁移谱仪还包括电压源,其向至少一个滤波电极提供DC和RF电压以产生电场;接收样品离子的第一和第二离子入口;以及输出所选部分的离子出口 的样品离子。 质谱仪接收样品离子的部分或全部选定部分。
    • 52. 发明授权
    • Method and system for operating a time of flight mass spectrometer detection system
    • 操作飞行时间质谱仪检测系统的方法和系统
    • US08785845B2
    • 2014-07-22
    • US13017709
    • 2011-01-31
    • Alexandre Loboda
    • Alexandre Loboda
    • H01J49/02H01J49/40G01T1/17
    • H01J49/025G01T1/17H01J49/0027H01J49/40
    • Dual TDC-ADC detection systems for time of flight mass spectrometry are disclosed herein. Detection systems based upon TDC generally provide higher timing resolution as opposed to detection systems based upon ADC. However, ADC generally provides increased dynamic range over TDC. By combining TDC and ADC into a tandem detector, and adjusting performance parameters of the respective converter types, the dynamic range of the dual TDC-ADC detection can be extended beyond what either detector type could have achieved individually. Composite time of flight mass spectra can be generated by aggregating individual mass spectra acquired from multiple time-of-flight extractions, and selecting the number of time-of-flight extractions to ensure overlap between the ADC and TDC dynamic ranges in the dual TDC-ADC detector system.
    • 本文公开了用于飞行时间质谱的双TDC-ADC检测系统。 与基于ADC的检测系统相反,基于TDC的检测系统通常提供更高的定时分辨率。 然而,ADC通常提供比TDC更大的动态范围。 通过将TDC和ADC组合成串联检测器,并调整各种转换器类型的性能参数,双TDC-ADC检测的动态范围可以扩展到单独检测器类型之外。 复合飞行时间质谱可以通过聚合从多次飞行时间提取获得的单个质谱,并选择飞行时间提取次数,以确保双TDC中ADC和TDC动态范围之间的重叠, ADC检测器系统。
    • 55. 发明授权
    • Expression quantification using mass spectrometry
    • 使用质谱法进行表达量化
    • US08633031B2
    • 2014-01-21
    • US12571005
    • 2009-09-30
    • Christine L. Hunter
    • Christine L. Hunter
    • G01N33/00B01D59/44
    • G01N33/68G01N33/6848G01N33/6851G01N2333/90209
    • In various aspects, the present teachings provide systems, methods, assays and kits for the absolute quantitation of protein expression. In various aspects, the present teachings provide methods of determining the concentration of one or more proteins of interest in one or more samples of interest. In various aspects, the present teachings provide methods of determining the absolute concentration of one or more isoforms of a protein using standard samples of signature protein fragments and parent-daughter ion transition monitoring (PDITM). In various embodiments, the absolute concentration of multiple isoforms of a biomolecule in a sample, multiple proteins in a biological process, a combination of multiple samples, or combinations thereof, can be determined in a multiplex fashion using the present teachings. In various aspects, provided are methods of assessing the response of a biological system to a chemical agent.
    • 在各个方面,本教导提供用于蛋白质表达的绝对定量的系统,方法,测定和试剂盒。 在各个方面,本教导提供了确定感兴趣的一种或多种感兴趣的一种或多种感兴趣的蛋白质的浓度的方法。 在各个方面,本教导提供使用标记蛋白片段和父 - 子离子转移监测(PDITM)的标准样品测定蛋白质的一种或多种同种型的绝对浓度的方法。 在各种实施方案中,可以使用本教导以多种方式确定样品中生物分子的多种同种型,生物过程中的多种蛋白,多种样品的组合或其组合的绝对浓度。 在各个方面,提供了评估生物系统对化学试剂的响应的方法。
    • 56. 发明申请
    • Systems and Methods for Rapidly Screening Samples by Mass Spectrometry
    • 通过质谱快速筛选样品的系统和方法
    • US20130240723A1
    • 2013-09-19
    • US13876349
    • 2011-11-02
    • Ronald F. BonnerStephen A. Tate
    • Ronald F. BonnerStephen A. Tate
    • H01J49/04
    • H01J49/0045H01J49/0027H01J49/0031H01J49/04
    • Systems and methods are used to rapidly screening samples. A fast sample introduction device that is non-chromatographic is instructed to supply each sample of a plurality samples to a tandem mass spectrometer using a processor. The fast sample introduction device can include a flow injection analysis device, an ion mobility analysis device, or a rapid sample cleanup device. The tandem mass spectrometer is instructed to perform fragmentation scans at two or more mass selection windows across a mass range of each sample of the plurality of samples using the processor. The two or more mass selection windows across the mass range can have fixed or variable window widths. The tandem mass spectrometer can be instructed to obtain a mass spectrum of the mass range before instructing the tandem mass spectrometer to perform the fragmentation scans.
    • 系统和方法用于快速筛选样品。 指示非色谱的快速样品引入装置使用处理器将多个样品的每个样品提供给串联质谱仪。 快速样品引入装置可以包括流动注射分析装置,离子迁移率分析装置或快速样品清除装置。 指示串联质谱仪在使用处理器的多个采样的质量范围的两个或更多个质量选择窗口上进行碎片扫描。 跨质量范围的两个或多个质量选择窗口可以具有固定或可变窗口宽度。 在指示串联质谱仪进行碎片扫描之前,可以指示串联质谱仪获得质量范围的质谱。
    • 57. 发明申请
    • Systems and Methods for Calculating Protein Confidence Values
    • 用于计算蛋白质置信度的系统和方法
    • US20130211734A1
    • 2013-08-15
    • US13697707
    • 2011-05-12
    • Ignat V. Shilov
    • Ignat V. Shilov
    • G06F19/00
    • G16C20/20G16B40/10
    • Protein confidence values are calculated in proteomic analysis. A protein database is searched for proteins matching peptides found from mass spectrometry of a sample producing a set of proteins and a corresponding set of peptides. Peptide confidence values for the set of peptides are determined. Protein confidence values are calculated for the set of proteins based on the peptide confidence values. A protein is selected from the set of proteins with a largest protein confidence value, the largest protein confidence value is saved for the protein, the protein is removed from the set of proteins, and one or more peptides corresponding to the protein are removed from the set of peptides. Protein confidence values are recalculated for the set of proteins based on the peptide confidence values and an effect of removing the one or more peptides from the set of peptides.
    • 在蛋白质组学分析中计算蛋白质置信度值。 搜索蛋白质数据库,从匹配产生一组蛋白质和相应肽组的样品的质谱的质谱图匹配的蛋白质。 确定该组肽的肽置信度值。 基于肽置信度值为蛋白质组计算蛋白质置信度值。 蛋白质选自具有最大蛋白质置信度值的一组蛋白质,为蛋白质节省了最大的蛋白质置信度值,蛋白质从该组蛋白质中除去,并且从蛋白质相应的一个或多个肽从 一套肽。 基于肽置信度值和从该组肽中除去一种或多种肽的效果,对蛋白质组重新计算蛋白质置信度值。
    • 59. 发明授权
    • Heated time of flight source
    • 加热时间的飞行来源
    • US08389934B2
    • 2013-03-05
    • US12732426
    • 2010-03-26
    • Mihajlo DzepinaWilliam LoydGregor Sprah
    • Mihajlo DzepinaWilliam LoydGregor Sprah
    • B01D59/44H01J49/00
    • H01J49/067
    • A lens assembly for use in mass spectrometry and a method for reducing contaminant build up on ion optic components in a lens assembly for use in a mass spectrometer are disclosed herein. In various embodiments of applicant's teachings, the lens assembly comprises a plurality of ion optic components assembled to form an ion lens and a heater. The plurality of ion optic components has a generally similar expansion coefficient. The heater is operatively coupled to the ion optic components. The heater heats the ion optic components to reduce the accumulation of debris on the ion optic components. In various embodiments, the method includes receiving, in a lens assembly, ions from an ion source. The lens assembly includes a plurality of ion optic components assembled to form an ion lens, the plurality of ion optic components having a generally similar expansion coefficient. The method also comprises heating the ion optic components to a first temperature.
    • 本文公开了一种用于质谱的透镜组件和用于减少用于质谱仪的透镜组件中的离子光学部件上积聚的污染物的方法。 在申请人的教导的各种实施例中,透镜组件包括组装成离子透镜和加热器的多个离子光学元件。 多个离子光学元件具有大致相似的膨胀系数。 加热器可操作地耦合到离子光学部件。 加热器加热离子光学部件以减少离子光学部件上的碎屑积聚。 在各种实施例中,该方法包括在透镜组件中接收离子源的离子。 透镜组件包括组装成离子透镜的多个离子光学元件,该多个离子光学部件具有大致相似的膨胀系数。 该方法还包括将离子光学元件加热至第一温度。