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1. 发明公开

US20240319062A1 SUSPENDED PARTICLE CONCENTRATION, DETECTION, AND ANALYSIS 审中-公开
公开(公告)号：US20240319062A1
公开(公告)日：2024-09-26
申请号：US18587203
申请日：2024-02-26
申请人： Regents of the University of Minnesota
发明人： Francisco J Romay , Yan Ye , David Y.H. Pui
IPC分类号： G01N15/0227 , G01N1/22 , G01N1/40 , G01N15/00 , G01N15/1434
CPC分类号： G01N15/0227 , G01N1/2202 , G01N1/2208 , G01N1/40 , G01N15/00 , G01N15/1436 , G01N2001/2223 , G01N2015/0046
摘要： A method of suspended particle detection includes receiving, with a particle concentrator, an aerosol comprising particles suspended within a bulk gas. The aerosol has a first concentration indicative of count of particles per unit volume of the bulk gas. The method includes concentrating, with the particle concentrator, the aerosol to generate a particle-rich stream of gas comprising at least one particle. The particle-rich stream of gas has a second concentration greater than the first concentration. The method includes irradiating the at least one particle in the particle-rich stream of gas with a light source of a certain wavelength in a detection chamber, and capturing image data relating to the at least one particle with an image sensor located within the detection chamber.

2. 发明公开

US20240264048A1 HYBRID CAPILLARY/PACKED TRAP AND METHOD OF USE 审中-公开
公开(公告)号：US20240264048A1
公开(公告)日：2024-08-08
申请号：US18617574
申请日：2024-03-26
申请人： Entech Instruments Inc.
发明人： Daniel B. CARDIN
IPC分类号： G01N1/22 , G01N1/40 , G01N30/00 , G01N30/16 , G01N30/60 , G01N30/88
CPC分类号： G01N1/2202 , G01N1/405 , G01N30/16 , G01N30/6078 , G01N30/88 , G01N2030/008 , G01N2030/0095 , G01N2030/8804
摘要： A hybrid trap including a replaceable open-tubular capillary trap followed by a packed trap is used to collect, preconcentrate, and recover a sample, such as VOCs and SVOCs found in air. The capillary stage prevents losses and carryover of the heavy fraction and can also collect the particles in air that contain the heavier SVOCs, also preventing them from reaching the packed stage. The packed stage traps lighter organic compounds that are not as prone to carryover due to channeling. The ionic species within the collected VOCs and SVOCs at the capillary trap can be converted to volatile compounds that allow gas chromatography-mass spectrometry.

3. 发明授权

US11851965B2 Core sampling and analysis using a sealed pressurized vessel 有权
公开(公告)号：US11851965B2
公开(公告)日：2023-12-26
申请号：US17077653
申请日：2020-10-22
申请人： Halliburton Energy Services, Inc.
发明人： Donald Clifford Westacott , Christopher Michael Jones , Anthony Herman van Zuilekom
IPC分类号： E21B25/10 , E21B49/08 , E21B49/06 , G01N1/22 , G01N23/046 , G01N24/08 , G01N33/00 , G01N33/24 , G01V9/00 , E21B47/07 , G01N1/08 , E21B10/02
CPC分类号： E21B25/10 , E21B47/07 , E21B49/06 , E21B49/0875 , G01N1/08 , G01N1/2202 , G01N23/046 , G01N24/081 , G01N33/0016 , G01N33/24 , G01V9/00 , E21B10/02 , G01N2223/616
摘要： Disclosed are methods, systems, and devices for measuring and otherwise processing core samples. In some embodiments, a method includes containing a core sample in a containment vessel including dynamically adjusting pressure within the containment vessel to maintain a phase of fluid within the core sample. Pressure is reduced within the containment vessel. During pressure or following reduction, one or more properties of the fluid in the core sample are measured.

4. 发明公开

US20230288298A1 Gas Monitoring Systems and Methods 审中-公开
公开(公告)号：US20230288298A1
公开(公告)日：2023-09-14
申请号：US18015470
申请日：2021-07-12
申请人： CAST Environmental, LLC
发明人： Marcelo Cassani
IPC分类号： G01N1/22
CPC分类号： G01N1/2247 , G01N1/2202 , G01N2001/2223
摘要： Autonomous systems and methods to measure contaminants in a contaminated gas stream and provide feedback to a control system to reduce the unit usage when contaminants are present in specific detectable quantities or in quantities lower than the anticipated limits are disclosed. Disclosed embodiments monitor a gas stream input and/or input and output continuously or at predefined intervals adjustable by the user on odor control or air emission treatment equipment. Disclosed monitoring systems clean a gas sensor probe/detector by cycling the input stream to the sensor between a contaminated gas sample and cleaning air. Retrofittable monitoring system kits are also disclosed to achieve advantages described herein with previously installed monitoring and treatment systems.

5. 发明公开

US20230280254A1 AEROSOL MOBILITY IMAGING 审中-公开
公开(公告)号：US20230280254A1
公开(公告)日：2023-09-07
申请号：US18160948
申请日：2023-01-27
申请人： Aerosol Dynamics Inc. , Washington University
发明人： Jian Wang , Steven Russel Spielman , Jiaoshi Zhang , Susanne Vera Hering , Jing Li
IPC分类号： G01N15/02 , G01N1/22
CPC分类号： G01N15/0266 , G01N1/2202 , G01N2001/2223
摘要： A system and method to measure a size distribution of particles based on their electrical mobility. The method includes: introducing, via a sheath flow inlet, a particle free sheath flow into a chamber formed by two parallel walls which are separated by a gap, the chamber having a width and a length, the sheath flow having a direction along the length of the chamber and flowing a laminar manner; introducing an aerosol sample flow into the chamber downstream of the sheath inlet such that the aerosol sample flow joins the particle free sheath flow in a laminar manner; applying an electric field between the two parallel walls of the chamber, the field having a strength which varies across the width of the chamber; extracting an output aerosol flow through a first outlet downstream of the sample inlet; and outputting an excess flow equal to a sum of the sheath flow and aerosol sample flow minus the output aerosol flow. The method may also include: passing the output aerosol flow through a growth cell in a laminar manner, the growth cell having a region of wetted walls with two or more temperature regions such that the particles within the output aerosol flow grow by condensation to form droplets, and such that relative positions of droplets are indicative of particle electrical mobility; and counting and capturing a spatial position of individual droplets exiting the growth cell.

6. 发明授权

US11710627B2 Cell population analysis 有权
公开(公告)号：US11710627B2
公开(公告)日：2023-07-25
申请号：US17558925
申请日：2021-12-22
申请人： Micromass UK Limited
发明人： Emrys Jones , Steven Derek Pringle , Keith Richardson , James Ian Langridge , Zoltan Takats
IPC分类号： G01N30/72 , H01J49/04 , A61B10/02 , A61B18/00 , A61B18/14 , A61B18/20 , G01N3/00 , G01N9/00 , G01N33/68 , H01J49/00 , H01J49/06 , H01J49/16 , G16B20/50 , G01N27/623 , A61B90/13 , A61B1/04 , A61B1/273 , A61B5/00 , A61B5/01 , A61B5/0507 , A61B5/055 , A61B6/03 , A61B8/13 , A61B10/00 , A61B17/00 , A61B18/04 , A61B18/18 , A61F13/38 , C12Q1/02 , C12Q1/04 , C12Q1/18 , C12Q1/24 , G01N1/22 , G01N27/624 , G01N33/487 , G01N33/92 , H01J49/02 , H01J49/10 , H01J49/14 , H01J49/24 , H01J49/26 , G16B20/00 , A61B17/32 , G16H10/40 , G16H15/00 , G16H50/20 , A61B1/00 , A61B1/31 , A61B5/145
CPC分类号： H01J49/049 , A61B1/041 , A61B1/2736 , A61B5/0066 , A61B5/0075 , A61B5/015 , A61B5/055 , A61B5/0507 , A61B6/032 , A61B6/037 , A61B8/13 , A61B10/00 , A61B10/0041 , A61B10/0233 , A61B10/0283 , A61B17/00 , A61B18/00 , A61B18/04 , A61B18/042 , A61B18/14 , A61B18/1445 , A61B18/1815 , A61B18/20 , A61B90/13 , A61F13/38 , C12Q1/025 , C12Q1/04 , C12Q1/18 , C12Q1/24 , G01N1/2202 , G01N3/00 , G01N9/00 , G01N27/623 , G01N27/624 , G01N30/724 , G01N33/487 , G01N33/6848 , G01N33/6851 , G01N33/92 , G16B20/50 , H01J49/0004 , H01J49/0027 , H01J49/0031 , H01J49/0036 , H01J49/025 , H01J49/044 , H01J49/0404 , H01J49/0409 , H01J49/0422 , H01J49/0445 , H01J49/0459 , H01J49/0463 , H01J49/0468 , H01J49/061 , H01J49/068 , H01J49/10 , H01J49/14 , H01J49/16 , H01J49/164 , H01J49/24 , H01J49/26 , A61B1/00013 , A61B1/31 , A61B5/14542 , A61B17/320068 , A61B2010/0083 , A61B2017/320069 , A61B2018/00577 , A61B2018/00589 , A61B2018/00994 , A61B2218/002 , A61B2218/008 , G01N33/48735 , G01N2001/2223 , G01N2333/195 , G01N2405/00 , G01N2405/04 , G01N2405/08 , G01N2570/00 , G01N2800/26 , G16B20/00 , G16H10/40 , G16H15/00 , G16H50/20
摘要： A method of analysis using mass spectrometry and/or ion mobility spectrometry is disclosed comprising: (a) using a first device to generate smoke, aerosol or vapour from a target in vitro or ex vivo cell population; (b) mass analysing and/or ion mobility analysing said smoke, aerosol or vapour, or ions derived therefrom, in order to obtain spectrometric data; and (c) analysing said spectrometric data in order to identify and/or characterise said target cell population or one or more cells and/or compounds present in said target cell population.

7. 发明授权

US11662278B2 System and method for detecting airborne pathogens 有权
公开(公告)号：US11662278B2
公开(公告)日：2023-05-30
申请号：US17105793
申请日：2020-11-27
申请人： Kontrol Energy Corp.
发明人： Gary Saunders , Paul Ghezzi
IPC分类号： G01N1/22 , G01N21/77 , G01F23/263 , G01N1/24 , G01N15/06
CPC分类号： G01N1/2202 , G01F23/263 , G01N1/2205 , G01N1/2273 , G01N21/77 , G01N2001/2282 , G01N2001/245 , G01N2015/0693
摘要： An air sampling system is disclosed. The air sampling system includes: an air inflow channel having an air inlet portion at a top end, the air inflow channel being oriented substantially vertically; a fan configured to cause air in a sampling environment to flow into the air inflow channel via the inlet portion; a cooling unit for cooling air in the air inflow channel, the cooling unit disposed downstream of the inlet portion; a collection chamber for collecting liquid water condensed from air in the air inflow channel, the collection chamber being fluidly connected to the air inflow channel; and a sensing unit for determining a volume of liquid in the collection chamber, wherein the cooling unit is controlled in response to signals generated by the sensing unit.

8. 发明授权

US10840076B2 Ionisation of gaseous samples 有权
公开(公告)号：US10840076B2
公开(公告)日：2020-11-17
申请号：US15555758
申请日：2016-03-07
申请人： Micromass UK Limited
发明人： Emrys Jones , Tamas Karancsi , Steven Derek Pringle , Julia Balog , Daniel Simon , Lajos Godorhazy , Daniel Szalay , Zoltan Takats
IPC分类号： H01J49/00 , H01J49/04 , A61B10/02 , A61B17/32 , A61B18/00 , A61B18/14 , A61B18/20 , G01N3/00 , G01N9/00 , G01N33/68 , H01J49/06 , H01J49/16 , A61B90/13 , A61B1/04 , A61B1/273 , A61B5/00 , A61B5/01 , A61B5/05 , A61B5/055 , A61B6/03 , A61B8/13 , A61B10/00 , A61B17/00 , A61B18/04 , A61B18/18 , A61F13/38 , C12Q1/02 , C12Q1/04 , C12Q1/18 , C12Q1/24 , G01N1/22 , G01N27/62 , G01N30/72 , G01N33/487 , G01N33/92 , H01J49/02 , H01J49/10 , H01J49/14 , H01J49/24 , H01J49/26 , G16B20/00 , G16H10/40 , G16H15/00 , G16H50/20 , A61B1/00 , A61B1/31 , A61B5/145 , G06F19/00
CPC分类号： H01J49/049 , A61B1/041 , A61B1/2736 , A61B5/0066 , A61B5/0075 , A61B5/015 , A61B5/055 , A61B5/0507 , A61B6/032 , A61B6/037 , A61B8/13 , A61B10/00 , A61B10/0041 , A61B10/0233 , A61B10/0283 , A61B17/00 , A61B17/320068 , A61B18/00 , A61B18/04 , A61B18/042 , A61B18/14 , A61B18/1445 , A61B18/1815 , A61B18/20 , A61B90/13 , A61F13/38 , C12Q1/025 , C12Q1/04 , C12Q1/18 , C12Q1/24 , G01N1/2202 , G01N3/00 , G01N9/00 , G01N27/622 , G01N27/624 , G01N30/724 , G01N33/487 , G01N33/6848 , G01N33/6851 , G01N33/92 , H01J49/0004 , H01J49/0027 , H01J49/0031 , H01J49/0036 , H01J49/025 , H01J49/044 , H01J49/0404 , H01J49/0409 , H01J49/0422 , H01J49/0445 , H01J49/0459 , H01J49/0463 , H01J49/0468 , H01J49/061 , H01J49/068 , H01J49/10 , H01J49/14 , H01J49/16 , H01J49/164 , H01J49/24 , H01J49/26 , A61B1/00013 , A61B1/31 , A61B5/14542 , A61B2010/0083 , A61B2017/320069 , A61B2018/00577 , A61B2018/00589 , A61B2018/00994 , A61B2218/002 , A61B2218/008 , G01N33/48735 , G01N2001/2223 , G01N2333/195 , G01N2405/00 , G01N2405/04 , G01N2405/08 , G01N2570/00 , G01N2800/26 , G06F19/324 , G06F19/3481 , G16B20/00 , G16H10/40 , G16H15/00 , G16H50/20
摘要： A method of mass spectrometry or ion mobility spectrometry is disclosed comprising: providing an analyte; supplying a matrix compound to said analyte such that said analyte dissolves in said matrix; forming first droplets of the dissolved analyte; and colliding said first droplets with a collision surface. The use of matrix improves the analyte ion signal.

9. 发明授权

US10835155B2 Ultra-clean bag or balloon for collection of volatile organic compounds in breath or air 有权
公开(公告)号：US10835155B2
公开(公告)日：2020-11-17
申请号：US15395950
申请日：2016-12-30
申请人： Michael Phillips
发明人： Michael Phillips
IPC分类号： A61B5/097 , A61B10/00 , A61B5/08 , G01N1/22 , G01N33/497
CPC分类号： A61B5/097 , A61B5/082 , A61B10/00 , G01N1/2202 , A61B2010/0087 , G01N33/497 , G01N2001/2244 , G01N2033/4975
摘要： A device and method is described for the collection of breath or air samples into a chemically clean bag or balloon, to facilitate analysis of volatile organic compounds (VOCs) in low concentrations in the collected samples. A reservoir of activated charcoal is introduced into the bag or balloon for initial removal of VOCs and it is then replaced with a similar reservoir of activated charcoal until the bag or balloon is employed to collect a sample. The device fulfills a long-felt need for collection of breath and air samples with a high VOC signal-to-noise ratio.

10. 发明授权

US10495550B2 Identification of chemicals in a sample using GC/SAW and Raman spectroscopy 有权
公开(公告)号：US10495550B2
公开(公告)日：2019-12-03
申请号：US15545215
申请日：2017-05-18
申请人： Pulmostics Limited
发明人： Yin Sun
IPC分类号： G01N1/10 , G01N1/22 , G01N21/65 , G01N29/02 , G01N30/74 , G01N30/76 , G01N30/78 , G01N29/036 , G01N30/86
CPC分类号： G01N1/10 , G01N1/2202 , G01N21/65 , G01N29/022 , G01N29/036 , G01N30/74 , G01N30/76 , G01N30/78 , G01N30/8675 , G01N2291/02809
摘要： A method for identification of chemicals in a sample using a gas chromatograph, a surface acoustic wave (SAW) sensor coupled with the gas chromatograph to define a gas chromatography (GC)/SAW system, and a Raman spectrometer. The method includes receiving SAW frequency response data generated by the SAW sensor, receiving Raman spectrum data generated by the Raman spectrometer, producing a Raman spectrum corresponding to an eluted component of interest based upon an integration of the Raman spectrum data, identifying a set of one or more candidate chemicals for the eluted component of interest based on a corresponding peak of the SAW frequency response data, and searching a Raman database for a match between the produced Raman spectrum and a chemical in the Raman database from among the set of candidate chemicals for the eluted component of interest.

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