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    Devices and methods for use with chemical vapour sampling material
    3.
    发明授权
    Devices and methods for use with chemical vapour sampling material 有权

    公开(公告)号：US12085488B2

    公开(公告)日：2024-09-10

    申请号：US17761915

    申请日：2020-09-18

    申请人： The Commonwealth of Australia

    发明人： Claudio Ceccato

    IPC分类号： G01N1/22 ,  G01N1/02

    CPC分类号： G01N1/2273 ,  G01N2001/028

    摘要： Embodiments generally relate to a device for housing chemical vapour sampling material. The device comprises a housing comprising a barrel, the barrel being configured to hold at least one fibre of chemical vapour sampling material, the barrel having a first opening at a first end configured to deploy at least a portion of the at least one fibre of chemical vapour sampling material; an extension mechanism arranged to cause extension and retraction of the at least one fibre of chemical vapour sampling material from the housing via the first opening; the extension mechanism being operable by actuation of at least one actuator. Actuating the at least one actuator causes extension or retraction of the at least one fibre of the chemical vapour sampling material from the housing via the first opening.

    FLUID COLLECTION DEVICE
    7.
    发明公开
    FLUID COLLECTION DEVICE 审中-公开

    公开(公告)号：US20240131518A1

    公开(公告)日：2024-04-25

    申请号：US18481573

    申请日：2023-10-04

    申请人： The Secretary of State for Health

    发明人： Oliver Bishop ,  Ben Childs

    IPC分类号： B01L3/00 ,  A61B5/15 ,  A61B10/00 ,  B01L3/02 ,  G01N1/10

    CPC分类号： B01L3/5029 ,  A61B5/150358 ,  A61B10/0045 ,  A61B10/0051 ,  A61B10/007 ,  B01L3/0272 ,  G01N1/10 ,  B01L2300/042 ,  B01L2300/046 ,  B01L2300/069 ,  B01L2300/0832 ,  B01L2300/0848 ,  B01L2300/123 ,  B01L2400/0481 ,  G01N2001/028

    摘要： A fluid collection device comprising an elongate container having an opening at one end, and a swab that is insertable into the container through said opening, wherein: the swab comprises an absorbent collector, for acquiring a fluid sample in use; and the internal cross-sectional area of the container becomes smaller in a direction away from the opening, the internal cross-sectional area becoming sufficiently small so as to cause the absorbent collector to be radially compressed as the swab is inserted into the container in use, thereby causing the absorbent collector to release at least some of the fluid sample held therein. The swab may further comprise a shaft, the absorbent collector being at or near a distal end of the shaft, and a closure being at or near a proximal end of the shaft, the closure being adapted to engage with the container and to close the opening of the container with the absorbent collector inside the container. The closure may further comprise an outlet through which fluid within the container can be dispensed in use, subsequent to the closure having been engaged with the container.

    In situ chemical transformation and ionization of inorganic perchlorates on surfaces
    8.
    发明授权
    In situ chemical transformation and ionization of inorganic perchlorates on surfaces 有权

    公开(公告)号：US11959846B2

    公开(公告)日：2024-04-16

    申请号：US16806315

    申请日：2020-03-02

    申请人： Smiths Detection Montreal Inc.

    发明人： Jan Hendrikse ,  Vladimir Romanov

    IPC分类号： G01N1/44 ,  G01N1/02 ,  H01J49/14 ,  H01J49/16

    CPC分类号： G01N1/44 ,  G01N1/02 ,  H01J49/142 ,  H01J49/16 ,  G01N2001/028

    摘要： A method for providing in situ chemical transformation and ionization of a portion (e.g., inorganic oxidizer) of a sample via an analyte detection system is disclosed herein. The method includes introducing a gas into an ionization some of the analyte detection system via an inlet. The method further includes generating ions within the ionization source and directing the gas and generated ions through and out of the ionization source and to the sample. The sample is located proximal to the ionization source in an ambient environment. The ions chemically react with the sample and desorb and ionize an analytic from the sample, the analyte being generated from the inorganic oxidizer, the desorbed analyte having a lower melting point and/or better desorption kinetics than the inorganic oxidizer. The method further includes receiving the desorbed analyte via an analyzer of the analyte detection system.

    SAMPLING FOR MOLECULAR ROTATIONAL RESONANCE SPECTROSCOPY
    9.
    发明公开
    SAMPLING FOR MOLECULAR ROTATIONAL RESONANCE SPECTROSCOPY 审中-公开

    公开(公告)号：US20240085286A1

    公开(公告)日：2024-03-14

    申请号：US18514320

    申请日：2023-11-20

    申请人： BrightSpec, Inc.

    发明人： Voislav Blagojevic ,  Chris Thompson ,  Justin L. Neill

    IPC分类号： G01N1/40 ,  G01N1/02 ,  G01N30/72 ,  G01N30/86

    CPC分类号： G01N1/4022 ,  G01N1/02 ,  G01N30/7246 ,  G01N30/7253 ,  G01N30/86 ,  G01N2001/028 ,  H01J49/165

    摘要： Molecular rotational resonance (MRR) spectroscopy can be used to characterize neutral, gas-phase molecules with very fine spectral resolution. Typically, the analyte molecules are placed in solution, which is heated initially to evaporate the solvent, then heated more to volatilize the analyte. Unfortunately, this approach does not always work well for analytes with low volatilities or susceptibility to thermal degradation. These analytes can be volatilized instead using laser-induced acoustic desorption (LIAD), flash vaporization, or nebulization. In LIAD, the analyte is dried onto a metal foil, which is illuminated by a laser. The laser beam generates an acoustic wave in the metal foil that shakes off the analyte. In flash vaporization, a small amount of liquid analyte drips onto a very hot surface, where it vaporizes too quickly to degrade. And in nebulization, a nebulizer pumps a fine spray of analyte into a heated transfer tube, where the solvent evaporates.