Automated inline preparation and degassing of volatile samples for inline analysis

    公开(公告)号:US11315776B2

    公开(公告)日:2022-04-26

    申请号:US17028115

    申请日:2020-09-22

    IPC分类号: G01N1/28 H01J49/04

    摘要: An analysis system includes a degassing cell, at least one first valve, and at least one second valve. The at least one first valve is fluidly coupled with a top of the degassing cell, the at least one first valve configured selectably connect the degassing cell to a displacement gas flow and to a vacuum source. The at least one second valve is fluidly connected with a lateral side of the degassing cell and separately fluidly connected with a bottom of the degassing cell. The at least one second valve is selectably coupled with any of a source of a sample-carrying fluid, a transfer line configured to deliver a sample to an analysis device, or a waste output.

    TEMPERATURE-CONTROLLED SAMPLE INTRODUCTION SYSTEM FOR ANALYSIS OF VISCOUS SAMPLES

    公开(公告)号:US20210190808A1

    公开(公告)日:2021-06-24

    申请号:US17127189

    申请日:2020-12-18

    IPC分类号: G01N35/10 G01N35/02

    摘要: A sample introduction system is described that provides temperature-controlled handling and transfer of a sample from an autosampler, through a transfer line, to a heated environment proximate an analytical device. A system embodiment includes, but is not limited to, an autosampler including a temperature-controlled deck to support one or more sample containers; a heating unit including one or more heating elements to one or more fluids to be introduced to a sample removed from the one or more sample containers; a transfer line fluidically coupled with the autosampler and including a heating element configured to transfer heat to fluid flowing through the transfer line; and a sample handling system fluidically coupled with the transfer line and configured to fluidically couple with an analysis device, the sample handling system including a housing and a heating element configured to control a temperature of an environment defined by the housing.

    SYSTEMS AND METHODS FOR INLINE, DUAL-STAGE SAMPLE DILUTION

    公开(公告)号:US20210121873A1

    公开(公告)日:2021-04-29

    申请号:US17094246

    申请日:2020-11-10

    摘要: Sample preparation systems and methods are described having pump control, valve configurations, and control logic that facilitate automatic, inline preparation dilutions of a sample according to at least two dilution operating modes. A system embodiment includes, but is not limited to a first pump configured to drive a carrier fluid; a second pump configured to drive a diluent; and a plurality of selection valves fluidically coupled with the first pump and the second pump, the plurality of selection valves being configured to direct fluid flows from the first pump and the second pump according to at least two modes of operation to provide a single-stage sample dilution according to a first operating mode and to provide a dual-stage sample dilution according to a second operating mode.

    HUMIDIFICATION OF LASER ABLATED SAMPLE FOR ANALYSIS

    公开(公告)号:US20210057201A1

    公开(公告)日:2021-02-25

    申请号:US16997349

    申请日:2020-08-19

    IPC分类号: H01J49/04

    摘要: Humidification systems and methods to introduce water vapor to a laser-ablated sample prior to introduction to an ICP torch are described. A system embodiment includes, but is not limited to, a water vapor generator configured to control production of a water vapor stream and to transfer the water vapor stream to at least one of a sample chamber of a laser ablation device or a mixing chamber in fluid communication with the laser ablation device, wherein the mixing chamber is configured to receive a laser-ablated sample from the laser ablation device and direct the laser-ablated sample to an inductively coupled plasma torch.

    Peristaltic pump
    100.
    发明授权

    公开(公告)号:US10830227B2

    公开(公告)日:2020-11-10

    申请号:US16429741

    申请日:2019-06-03

    IPC分类号: F04B43/12 A61M5/142

    摘要: A peristaltic pump includes a rotating member operably coupled to a drive. The rotating member includes a plurality of rollers arranged in a circular configuration. A guide member defines a channel configured to direct a peristaltic tube around the rotating member so that the peristaltic tube interfaces with the plurality of rollers. The peristaltic tube is pressed against the plurality of rollers by a retaining shoe. The retaining shoe contains surface irregularities configured to restrict movement of the peristaltic tube. A keeper braces the restraining shoe against the peristaltic tube. The rotating rollers compressing the peristaltic tube against the retaining shoe as the rotating member rotates results in a peristaltic action that produces a nearly pulse free linear flow.