Immobilized enzymatic reactor
    11.
    发明授权

    公开(公告)号:US10533209B2

    公开(公告)日:2020-01-14

    申请号:US15884902

    申请日:2018-01-31

    Abstract: An immobilized enzymatic reactor can include a wall defining a chamber having an inlet and an outlet; a solid stationary phase covalently linked to an enzyme and disposed within the chamber; and a pressure modulator in fluid communication with the chamber and adapted to support continuous flow of a liquid sample comprising a polymer analyte through the inlet, over the solid stationary phase, and out of the outlet under a pressure between about 2,500 and 35,000 psi. In one example, the solid stationary phase includes inorganic/organic hybrid particles in an ultra performance liquid chromatography system, the enzyme is a protease, and the polymer analyte is a polypeptide. The immobilized enzymatic reactor can prepare an analyte for applications such as for hydrogen deuterium exchange mass spectrometry.

    Dried sample carrier having dissolvable sample regions
    12.
    发明授权
    Dried sample carrier having dissolvable sample regions 有权
    具有可溶样品区域的干燥样品载体

    公开(公告)号:US09488551B2

    公开(公告)日:2016-11-08

    申请号:US14375337

    申请日:2013-02-01

    Abstract: Described are sample carriers and methods of extracting a fluid sample from a dried sample on a sample carrier. The sample carrier has a first carrier portion that receives a fluid sample, and includes a material that adsorbs the fluid sample and dissolves upon application of a solvent. A second carrier portion is attached to the first carrier portion and includes a material that is indissolvable in the solvent. The first carrier portion having a dried sample is dissolved into a solution upon application of the solvent. The solution can be analyzed to determine constituents in the extracted sample. The sample carrier can conveniently be in the form of a card or a dipstick. In alternative embodiments, a carrier portion that includes the dried sample is indissolvable in the solvent but is released from another carrier portion through application of a solvent to an intervening dissolvable carrier portion.

    Abstract translation: 描述了样品载体和从样品载体上的干燥样品中提取流体样品的方法。 样品载体具有接收流体样品的第一载体部分,并且包括吸附流体样品并在施加溶剂时溶解的材料。 第二载体部分附接到第一载体部分并且包括在溶剂中不溶解的材料。 具有干燥样品的第一载体部分在施加溶剂时溶解于溶液中。 可以分析溶液以确定提取的样品中的成分。 样品载体可以方便地以卡片或量油尺的形式。 在替代实施例中,包括干燥样品的载体部分在溶剂中是可溶解的,但是通过将溶剂施加到中间可溶解载体部分而从另一个载体部分释放。

    Immobilized enzymatic reactor
    14.
    发明授权

    公开(公告)号:US11905548B2

    公开(公告)日:2024-02-20

    申请号:US17881175

    申请日:2022-08-04

    Abstract: An immobilized enzymatic reactor can include a wall defining a chamber having an inlet and an outlet; a solid stationary phase covalently linked to an enzyme and disposed within the chamber; and a pressure modulator in a fluid communication with the chamber and adapted to support continuous flow of a liquid sample comprising a polymer analyte through the inlet, over the solid stationary phase, and out of the outlet under a pressure between about 2,500 and 35,000 psi. In one example, the solid stationary phase includes inorganic/organic hybrid particles in an ultra performance liquid chromatography system, the enzyme is a protease, and the polymer analyte is a polypeptide. The immobilized enzymatic reactor can prepare an analyte for applications such as for hydrogen deuterium exchange mass spectrometry.

    HIGH SURFACE AREA CHROMATOGRAPHIC DEVICE WITH LOW PRESSURE DROP

    公开(公告)号:US20190277816A1

    公开(公告)日:2019-09-12

    申请号:US16292610

    申请日:2019-03-05

    Abstract: A chromatographic device includes a primary channel having a cross-sectional area and characteristic length such that analyte travel within the primary channel is substantially convective. A plurality of secondary channels each having a cross-sectional area and characteristic length such that analyte flow into and out of a secondary channel is substantially diffusive, each of the plurality of secondary channels having an entrance in fluidic communication with the primary channel wherein the entrance intersects the primary channel.

    VIAL CAP FOR A LIQUID CHROMATOGRAPHY SAMPLE VIAL

    公开(公告)号:US20220203360A1

    公开(公告)日:2022-06-30

    申请号:US17335373

    申请日:2021-06-01

    Inventor: Moon Chul Jung

    Abstract: A vial cap for a sample vial includes a cylindrical cap body defining a first circular opening at a first end. The vial cap also includes a cap lid extending radially inward from a second end of the cylindrical cap body. The cap lid defines a second circular opening. The vial cap also includes a septum located within the cylindrical cap body and in contact with the cap lid. The septum spans the second circular opening defined by the cap lid portion. The vial cap also includes a number of flexible threads extending from an internal surface of the cylindrical cap body.

    METHODS FOR THE EVALUATION OF SYSTEM INERTNESS

    公开(公告)号:US20220082532A1

    公开(公告)日:2022-03-17

    申请号:US17471449

    申请日:2021-09-10

    Abstract: The present disclosure is directed to methods for evaluating system inertness, such as the inertness of a LC or other fluidic system. Some methods are directed to tests wherein the column has been removed prior to injecting a sample including a positive (e.g., metal reacting moiety) control into the system. Some methods can include: (1) repeatedly injecting the sample into a system, the system comprising: fluidic paths wherein interior surfaces of the fluidic paths define wetted surfaces, and wherein at least a portion of the wetted surfaces of the fluidic flow path are coated with an inert coating, wherein the inert coating is inert to at least one analyte in the sample; (2) detecting a value associated with the positive control; and (3) analyzing values associated with the detected positive control to determine system inertness.

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