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    Method and device for sample loading
    3.
    发明申请
    Method and device for sample loading 审中-公开

    公开(公告)号：US20180128792A1

    公开(公告)日：2018-05-10

    申请号：US15809239

    申请日：2017-11-10

    Applicant: DIONEX SOFTRON GMBH

    Inventor： Thomas WACHINGER ,  Christoph HOLLNAGEL

    IPC: G01N30/60 ,  G01N30/14

    CPC classification number: G01N30/6034 ,  G01N30/14 ,  G01N30/20 ,  G01N30/24 ,  G01N2030/027 ,  G01N2030/201 ,  G01N2030/202 ,  G01N2030/385

    Abstract: A liquid chromatography system includes a separation column, a trap column, and a first switching valve. The first switching valve is adapted to assume a first switching position for bringing a sample into the trap column in a first flow direction. The switching valve is also adapted to assume a second switching position for fluidly connecting the trap column with the separation column and providing a flow from the trap column to the separation column in a second flow direction. The second flow direction is opposite to the first flow direction. The first switching valve is adapted to assume a third switching position for fluidly connecting the trap column, with the separation column and providing a flow from the trap column to the separation column in the first flow direction.

    LIQUID CHROMATOGRAPHY SYSTEM, METHOD AND USE
    4.
    发明申请
    LIQUID CHROMATOGRAPHY SYSTEM, METHOD AND USE 有权

    公开(公告)号：US20210199628A1

    公开(公告)日：2021-07-01

    申请号：US17199812

    申请日：2021-03-12

    Applicant: DIONEX SOFTRON GMBH

    Inventor： Christoph HOLLNAGEL ,  Remco SWART ,  Hermann HOCHGRAEBER

    IPC: G01N30/32 ,  G01N30/20 ,  G01N30/24 ,  G01N30/22

    Abstract: A method performed in a liquid chromatography system includes a metering device pushing a sample into a trap column. The metering device sucks in the sample from a sample reservoir, wherein the sucking in the sample from a sample reservoir precedes the step of pushing the sample into the trap column. The liquid chromatography system also includes a trap column and a metering device, wherein the system is adapted to assume a configuration allowing the metering device to push a sample into the trap column and wherein the metering device is adapted to push the sample into the trap column in this configuration, wherein the system is adapted to assume a configuration allowing the sample to be sucked into the system by means of the metering device. Furthermore, the invention relates to a use of the liquid chromatography system for liquid chromatography, in particular of high-pressure liquid chromatography.

    NEEDLE FOR USE IN ANALYTICAL APPLICATION
    5.
    发明申请
    NEEDLE FOR USE IN ANALYTICAL APPLICATION 有权

    公开(公告)号：US20230070054A1

    公开(公告)日：2023-03-09

    申请号：US17929940

    申请日：2022-09-06

    Applicant: Dionex Softron GmbH

    Inventor： Michael KOLBE ,  Christoph HOLLNAGEL ,  Hermann HOCHGRAEBER ,  Robert SPRINGER

    IPC: G01N30/24 ,  B01D15/20

    Abstract: The present invention relates to a needle (1), wherein the needle (1) comprises a channel (12) extending through the needle (1), wherein the needle (1) comprises a needle tip (11), wherein the channel (12) comprises an opening at the needle tip (11), wherein the needle (1) defines an axial direction (x), wherein the axial direction (x) defines a distal direction and a proximal direction, wherein the needle tip (11) is a distal portion of the needle (1), and wherein the needle tip (11) comprises a first surface section (112) and a second surface section (111), wherein the first surface section (112) is arranged at a first angle (α) with respect to the axial direction (x) and the second surface section (111) is arranged at a second angle (β) with respect to the axial direction (x), wherein the first angle is different from the second angle. The present invention also relates to a corresponding apparatus, system and use.

    Liquid chromatography system, method and use
    6.
    发明申请
    Liquid chromatography system, method and use 审中-公开

    公开(公告)号：US20180128789A1

    公开(公告)日：2018-05-10

    申请号：US15809136

    申请日：2017-11-10

    Applicant: DIONEX SOFTRON GMBH

    Inventor： Christoph HOLLNAGEL ,  Remco SWART ,  Hermann HOCHGRAEBER

    IPC: G01N30/32 ,  G01N30/22

    CPC classification number: G01N30/32 ,  G01N30/20 ,  G01N30/22 ,  G01N30/24 ,  G01N2030/027

    Abstract: A method performed in a liquid chromatography system that includes a metering device pushing a sample into a trap column. The metering device sucks in the sample from a sample reservoir, wherein the sucking in the sample from a sample reservoir precedes the step of pushing the sample into the trap column. The liquid chromatography system also includes a trap column and a metering device (100), wherein the system (1000) is adapted to assume a configuration allowing the metering device (100) to push a sample into the trap column (6) and wherein the metering device (100) is adapted to push the sample into the trap column (6) in this configuration, wherein the system (1000) is adapted to assume a configuration allowing the sample to be sucked into the system (1000) by means of the metering device (100). Furthermore, the invention relates to a use of the liquid chromatography system (1000) for liquid chromatography, in particular of high pressure liquid chromatography.

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