Mass spectrometer and method of mass spectrometry
    1.
    发明申请
    Mass spectrometer and method of mass spectrometry 审中-公开
    质谱仪和质谱法

    公开(公告)号:US20070023635A1

    公开(公告)日:2007-02-01

    申请号:US11513185

    申请日:2006-08-31

    IPC分类号: B01D59/44

    摘要: A mass spectrometer is disclosed comprising an ion mobility spectrometer in combination with a quadrupole mass filter which is scanned in synchronisation with the pulsing of ions into the ion mobility spectrometer thereby enabling ions having a particular charge state to be preferentially transmitted. Another embodiment replaces the quadrupole mass filter with an axial time of flight mass filter and an injection electrode.

    摘要翻译: 公开了一种质谱仪,其包括与四极质量过滤器组合的离子迁移谱仪,其与离子脉冲离子扫描到离子迁移谱仪中,从而使具有特定电荷状态的离子能够被优先传输。 另一实施例用轴向飞行时间质量过滤器和注入电极取代四极质量过滤器。

    Method of mass spectrometry
    2.
    发明申请
    Method of mass spectrometry 有权
    质谱法

    公开(公告)号:US20050118724A1

    公开(公告)日:2005-06-02

    申请号:US10498046

    申请日:2002-12-12

    IPC分类号: G01N24/00 H01J49/04

    CPC分类号: H01J49/062 Y10T436/24

    摘要: A method of mass spectrometry is disclosed wherein ions are trapped for a period of time T within an AC or RF ion guide maintained at a pressure P wherein the product P×T is at least 1 mbar-ms. The effect of trapping the ions according to a preferred embodiment is that singly charged ions which may, for example, comprise unwanted background ions are substantially lost from the trap whereas multiply charged analyte ions are maintained within the ion trap and can then be released for subsequent mass analysis.

    摘要翻译: 公开了一种质谱法,其中在产品PxT至少为1毫巴的压力下,在保持在压力P的AC或RF离子导向器内捕获离子一段时间T。 捕获根据优选实施方案的离子的效果是,可以例如包含不想要的背景离子的单电荷离子从捕获阱基本上丢失,而多电荷分析物离子保持在离子阱内,然后可以释放以用于随后的 质量分析。

    Mass spectrometer
    3.
    发明申请
    Mass spectrometer 有权
    质谱仪

    公开(公告)号:US20070023638A1

    公开(公告)日:2007-02-01

    申请号:US11472278

    申请日:2006-06-22

    IPC分类号: H01J49/00

    CPC分类号: H01J49/4225

    摘要: A mass spectrometer is disclosed comprising an ion trap wherein ions which have been temporally separated according to their mass to charge ratio or ion mobility enter the ion trap. Once at least some of the ions have entered the ion trap, a plurality of ion trapping regions are created along the length of the ion trap in order to fractionate the ions. Alternatively, the ions may be received within one or more axial trapping regions which are translated along the ion trap with a velocity which is progressively reduced to zero.

    摘要翻译: 公开了一种质谱仪,其包括离子阱,其中根据其质荷比或离子迁移率暂时分离的离子进入离子阱。 一旦至少一些离子已经进入离子阱,沿着离子阱的长度产生多个离子捕获区域,以分离离子。 或者,离子可以被接收在一个或多个沿着离子阱平移的轴向捕获区域中,其速度逐渐减小到零。

    Mass spectrometer
    4.
    发明申请
    Mass spectrometer 有权
    质谱仪

    公开(公告)号:US20050023453A1

    公开(公告)日:2005-02-03

    申请号:US10633702

    申请日:2003-08-05

    IPC分类号: H01J49/00 H01J49/42

    CPC分类号: H01J49/4225

    摘要: A mass spectrometer is disclosed comprising an ion trap wherein ions which have been temporally separated according to their mass to charge ratio or ion mobility enter the ion trap. Once at least some of the ions have entered the ion trap, a plurality of ion trapping regions are created along the length of the ion trap in order to fractionate the ions. Alternatively, the ions may be received within one or more axial trapping regions which are translated along the ion trap with a velocity which is progressively reduced to zero.

    摘要翻译: 公开了一种质谱仪,其包括离子阱,其中根据其质荷比或离子迁移率暂时分离的离子进入离子阱。 一旦至少一些离子已经进入离子阱,沿着离子阱的长度产生多个离子捕获区域,以分离离子。 或者,离子可以被接收在一个或多个沿着离子阱平移的轴向捕获区域中,其速度逐渐减小到零。

    Gaskets
    5.
    发明申请
    Gaskets 有权
    垫圈

    公开(公告)号:US20050006858A1

    公开(公告)日:2005-01-13

    申请号:US10886736

    申请日:2004-07-08

    摘要: The gasket includes a sealing strip comprising a resilient material, the resilient material comprising a chemically exfoliated vermiculite (CEV) component in a proportion of at least 25% w/w of the sealing strip, the said CEV component being at least partially derived from dry CEV, wherein the sealing strip does not include a carrier strip, made by the process of the application of a wet sealing strip material to a forming sheet to form a layer; partially drying the wet sealing strip layer on the forming sheet; removing the layer from the forming sheet; and (d) cutting the layer into strips suitable for use in the formation of a spirally wound gasket.

    摘要翻译: 垫片包括一个包括弹性材料的密封条,弹性材料包括化学剥落的蛭石(CEV)组分,其比例至少为密封条的25%w / w,所述CEV组分至少部分地衍生自干 CEV,其中密封条不包括通过将湿密封条带材施加到成形片材以形成层的方法制成的载体条带; 部分干燥成形片上的湿密封条层; 从成形片上去除层; 和(d)将该层切割成适合用于形成螺旋卷绕垫圈的条带。

    MASS SPECTROMETER
    6.
    发明申请
    MASS SPECTROMETER 有权
    质谱仪

    公开(公告)号:US20090134321A1

    公开(公告)日:2009-05-28

    申请号:US11996236

    申请日:2006-07-21

    申请人: John Hoyes

    发明人: John Hoyes

    IPC分类号: B01D59/44 H01J49/00

    摘要: A mass spectrometer is disclosed comprising a mass selective ion trap (12) and a quadrupole rod set mass filter (14) arranged downstream of the mass selective ion trap (12). Ions are mass selectively ejected from the ion trap (12) in a substantially synchronised manner with the scanning of the mass filter (14) in order to increase the duty cycle of the mass filter (14).

    摘要翻译: 公开了一种质谱仪,其包括质量选择性离子阱(12)和布置在质量选择性离子阱(12)下游的四极杆组质量过滤器(14)。 为了增加质量过滤器(14)的占空比,离子以与质量过滤器(14)的扫描基本上同步的方式从离子阱(12)中选择性地排出。

    Ion extraction devices, mass spectrometer devices, and methods of selectively extracting ions and performing mass spectrometry
    8.
    发明申请
    Ion extraction devices, mass spectrometer devices, and methods of selectively extracting ions and performing mass spectrometry 有权
    离子提取装置,质谱仪装置以及选择性提取离子和进行质谱分析的方法

    公开(公告)号:US20070034810A1

    公开(公告)日:2007-02-15

    申请号:US11483961

    申请日:2006-07-10

    申请人: John Hoyes

    发明人: John Hoyes

    IPC分类号: H01J3/14

    CPC分类号: H01J49/427

    摘要: There is disclosed a method of selectively extracting ions comprising the steps of: providing a supply of ions in a body of gas; generating a ponderomotive ion trapping potential generally along an axis; generating further potentials to provide an effective potential which prevents ions from being extracted from an extraction region; trapping ions in said effective potential; and selectively extracting ions of a predetermined m/z ratio or ion mobility from the extraction region; in which the characteristics of the effective potential which prevent ions from being extracted from the extraction region are caused, at least in part, by the generation of the ponderomotive ion trapping potential.

    摘要翻译: 公开了一种选择性提取离子的方法,包括以下步骤:提供气体中的离子供应; 产生一般沿着轴线的沉淀电势捕获电位; 产生更多的电位以提供有效的电势,防止从提取区域中提取离子; 捕获所述有效电位的离子; 并从提取区域选择性地提取预定m / z比的离子或离子迁移率; 其中,至少部分地通过产生沉淀机电离子俘获电位而引起防止离子从提取区域中提取的有效电位的特性。