ION MOBILITY SPECTROMETRY (IMS) DEVICE WITH CHARGED MATERIAL TRANSPORTATION CHAMBER
    3.
    发明申请
    ION MOBILITY SPECTROMETRY (IMS) DEVICE WITH CHARGED MATERIAL TRANSPORTATION CHAMBER 审中-公开
    具有充电材料运输室的离子移动光谱仪(IMS)装置

    公开(公告)号:US20140264021A1

    公开(公告)日:2014-09-18

    申请号:US14218109

    申请日:2014-03-18

    IPC分类号: H01J49/06 H01J49/26 G01N27/62

    摘要: An ion detection assembly is described that includes a drift chamber, an inlet assembly, and a collector assembly. The drift chamber is formed of substantially non-conductive material and/or semi-conductive material. A patterned resistive trace is deposited on one or more of an interior surface or an exterior surface of the drift chamber. The patterned resistive trace is configured to connect to a source of electrical energy. The inlet assembly and the collector assembly are in fluid communication with the drift chamber. The inlet assembly includes an inlet for receiving a sample, a reaction region for ionizing the sample, and a gate for controlling entrance of the ionized sample to the drift chamber. The collector assembly includes a collector plate for collecting the ionized sample after the ionized sample passes through the drift chamber.

    摘要翻译: 描述了一种离子检测组件,其包括漂移室,入口组件和收集器组件。 漂移室由基本上不导电的材料和/或半导体材料形成。 图案化的电阻迹线沉积在漂移室的内表面或外表面的一个或多个上。 图案化电阻迹线被配置为连接到电能源。 入口组件和收集器组件与漂移室流体连通。 入口组件包括用于接收样品的入口,用于电离样品的反应区域和用于控制离子化样品进入漂移室的门。 集电器组件包括用于在电离样品通过漂移室之后收集电离样品的集电板。

    DIELECTRIC BARRIER DISCHARGE IONIZATION SOURCE FOR SPECTROMETRY
    5.
    发明申请
    DIELECTRIC BARRIER DISCHARGE IONIZATION SOURCE FOR SPECTROMETRY 审中-公开
    用于光谱分析的电介质阻挡放电源

    公开(公告)号:US20170023525A1

    公开(公告)日:2017-01-26

    申请号:US15039586

    申请日:2014-11-26

    IPC分类号: G01N27/68 G01N27/62

    摘要: An ionization device includes a first electrode comprising a conductive member coated with a dielectric layer. The ionization device also includes a spine extending adjacent to and at least partially along the first electrode. The ionization device further includes a second electrode comprising conductive segments disposed adjacent the first electrode. Each one of the conductive segments contacts the spine at a respective contact location. The dielectric layer of the first electrode separates the conductive member of the first electrode from the spine and the second electrode. The ionization device is configured to create plasma generating locations corresponding to respective crossings of the first electrode and the second electrode.

    摘要翻译: 电离装置包括第一电极,其包括涂覆有电介质层的导电构件。 离子化装置还包括沿着第一电极并且至少部分地沿着第一电极延伸的脊柱。 电离装置还包括第二电极,其包括邻近第一电极设置的导电段。 每个导电段在相应的接触位置处接触脊柱。 第一电极的电介质层将第一电极的导电构件与脊柱和第二电极分开。 电离装置被配置成产生对应于第一电极和第二电极的相应交叉点的等离子体产生位置。

    Fast-switching dual-polarity ion mobility spectrometry

    公开(公告)号:US10338027B2

    公开(公告)日:2019-07-02

    申请号:US15636122

    申请日:2017-06-28

    摘要: Systems and methods disclosed provide for methods of managing polarity switching in an ion mobility spectrometer, and provide for management of the repelling grid voltage, the gating grid voltage, and the fixed grid voltage during polarity switching. Systems and methods also provide for the management of the effect of dielectric relaxation in an insulator proximal to the collector, and provide for a preamplifier coupled to the collector including a switch, and a method of managing the collector output including the switch. Systems and methods consistent with the current disclosure further provide for a method of normalizing ion mobility data by determining fitting coefficients associated with a plurality of measurement data sets, and subtracting the curves determined by the fitting coefficients from the data acquired by the ion mobility spectrometer.