Systems and methods for indirect detection of a missed sample

    公开(公告)号:US11515135B1

    公开(公告)日:2022-11-29

    申请号:US16847376

    申请日:2020-04-13

    Abstract: Systems and methods are described for indirect detection of a missed sample from an autosampler. A method embodiment includes, but is not limited to, drawing a fluid through operation of an autosampler; directing the fluid via a fluid line to a valve of a fluid handling system, the valve including or being adjacent to a sensor to detect a presence or absence of liquid sample; directing the fluid from the valve into a holding line coupled to the valve; determining whether a threshold amount of liquid sample is present in the fluid in the holding line; and when it is determined that liquid sample is present in the fluid in the holding line in an amount less than the threshold amount, transferring a carrier fluid having a marker component to an analytic detector, the marker component present in the carrier fluid in an amount indicative of a missed sample.

    USER EXCHANGEABLE ABLATION CELL INTERFACE TO ALTER LA-ICP-MS PEAK WIDTHS

    公开(公告)号:US20220344141A1

    公开(公告)日:2022-10-27

    申请号:US17845156

    申请日:2022-06-21

    Abstract: In an embodiment, a laser ablation system can include a laser ablation cell and at least a pair of particle-collection-to-transport-tubing interfaces. The laser ablation cell can be configured for ablating a sample or another material, and the laser ablation cell can include a laser unit. The at least a pair of particle-collection-to-transport-tubing interfaces can be configured to gather an ablated sample and direct the ablated sample to an analysis unit. A selected particle-collection-to-transport-tubing interface can be received by the laser ablation cell directly above the laser unit. The at least a pair of particle-collection-to-transport-tubing interfaces can be configured to be interchangeable with one another.

    Rational nano-coulomb ionization
    46.
    发明授权

    公开(公告)号:US11476778B2

    公开(公告)日:2022-10-18

    申请号:US16645269

    申请日:2017-09-12

    Abstract: An ion pulse generator (100) includes a triboelectric generator (110), an ion emitter (132) and a conductive surface (134). The triboelectric generator (110) includes a first electrode (114), a spaced apart second electrode (120) and a first triboelectric layer (116). The triboelectric generator (110) generates a predetermined amount of charge as a result of relative movement of the first triboelectric layer (116). The ion emitter (132) is electrically coupled to the first electrode (114). The conductive surface (134) is electrically coupled to the second electrode (120) and is spaced apart from the ion emitter (132) at a predetermined distance. Generation of the predetermined amount of charge causes formation of ions between the ion emitter (132) and the conductive surface (134).

    Ion focusing
    48.
    发明授权

    公开(公告)号:US11469090B2

    公开(公告)日:2022-10-11

    申请号:US17148737

    申请日:2021-01-14

    Abstract: The invention generally relates to apparatuses for focusing ions at or above ambient pressure and methods of use thereof. In certain embodiments, the invention provides an apparatus for focusing ions that includes an electrode having a cavity, at least one inlet within the electrode configured to operatively couple with an ionization source, such that discharge generated by the ionization source is injected into the cavity of the electrode, and an outlet. The cavity in the electrode is shaped such that upon application of voltage to the electrode, ions within the cavity are focused and directed to the outlet, which is positioned such that a proximal end of the outlet receives the focused ions and a distal end of the outlet is open to ambient pressure.

Patent Agency Ranking