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    PORTABLE ATMOSPHERIC MONITOR
    1.
    发明申请
    PORTABLE ATMOSPHERIC MONITOR 有权

    公开(公告)号：US20220136950A1

    公开(公告)日：2022-05-05

    申请号：US17602147

    申请日：2020-04-09

    Applicant: Colorado State University Research Foundation ,  Access Sensor Technologies LLC

    Inventor： Daniel D. Miller-Lionberg ,  Casey W. Quinn ,  Christian C. L'Orange ,  Jeffrey R. Pierce ,  Eric A. Wendt ,  John Volckens

    IPC: G01N15/06 ,  G01N21/53 ,  G01V8/10

    Abstract: In certain embodiments, a portable atmospheric monitor comprises a housing at least partially enclosing an inner chamber. The housing comprises an inlet and an aperture. The monitor also includes at least one light sensor arranged within the housing. The light sensor that senses one or more wavelengths of sunlight received via the aperture. The monitor includes at least one light-scattering sensor that senses PM received via the inlet. The monitor includes a processor arranged within the housing and coupled to the at least one light sensor and the at least one light-scattering sensor. The processor is configured to: receive a light signal from the at least one light sensor; receive a PM signal from the at least one light-scattering sensor; determine the aerosol optical depth based upon the light signal; and determine the PM concentration based upon the PM signal.

    RESPIRABLE AND THORACIC SAMPLING INLET ASSEMBLIES
    3.
    发明申请
    RESPIRABLE AND THORACIC SAMPLING INLET ASSEMBLIES 有权

    公开(公告)号：US20210196244A1

    公开(公告)日：2021-07-01

    申请号：US17127520

    申请日：2020-12-18

    Applicant: Access Sensor Technologies LLC ,  Colorado State University Research Foundation

    Inventor： David Leith ,  John Volckens ,  Christian L'Orange ,  Daniel D. Miller-Lionberg

    IPC: A61B10/00

    Abstract: A portable sampler, the sampler including a sampler assembly having a housing that includes a receiver defined therein for interchangeably receiving a number of removable inlet assemblies, the removable inlet assemblies including a respirable inlet assembly and a thoracic inlet assembly. The respirable inlet assembly includes a hybrid cyclone assembly, the hybrid cyclone assembly including an impaction stage and a cyclone in series. The thoracic inlet assembly includes an inlet slot configured to function as a size-selective inlet. Another thoracic inlet assembly includes a housing having a number of openings configured to receive a sample airflow; an inlet insert through which an inlet aperture is defined; a prequalification chamber defined between a lower surface of the housing and an upper surface of the inlet insert; and a protrusion extending downward from the lower surface of the housing into the inlet aperture of the inlet insert to from an inlet slot.

    RESPIRABLE AND THORACIC SAMPLING INLET ASSEMBLIES
    7.
    发明申请
    RESPIRABLE AND THORACIC SAMPLING INLET ASSEMBLIES 有权

    公开(公告)号：US20240374244A1

    公开(公告)日：2024-11-14

    申请号：US18781632

    申请日：2024-07-23

    Applicant: Access Sensor Technologies LLC ,  Colorado State University Research Foundation

    Inventor： David Leith ,  John Volckens ,  Christian L'Orange ,  Daniel D. Miller-Lionberg

    IPC: A61B10/00 ,  G01N1/22 ,  G01N15/02

    Abstract: A portable sampler, the sampler including a sampler assembly having a housing that includes a receiver defined therein for interchangeably receiving a number of removable inlet assemblies, the removable inlet assemblies including a respirable inlet assembly and a thoracic inlet assembly. The respirable inlet assembly includes a hybrid cyclone assembly, the hybrid cyclone assembly including an impaction stage and a cyclone in series. The thoracic inlet assembly includes an inlet slot configured to function as a size-selective inlet. Another thoracic inlet assembly includes a housing having a number of openings configured to receive a sample airflow; an inlet insert through which an inlet aperture is defined; a prequalification chamber defined between a lower surface of the housing and an upper surface of the inlet insert; and a protrusion extending downward from the lower surface of the housing into the inlet aperture of the inlet insert to from an inlet slot.

    METHODS AND SYSTEMS FOR AUTOMATED ANALYSIS OF AEROSOL SAMPLING FILTERS
    8.
    发明申请
    METHODS AND SYSTEMS FOR AUTOMATED ANALYSIS OF AEROSOL SAMPLING FILTERS 有权

    公开(公告)号：US20220260462A1

    公开(公告)日：2022-08-18

    申请号：US17670204

    申请日：2022-02-11

    Applicant: Colorado State University Research Foundation

    Inventor： John Volckens ,  Christian L'Orange ,  Gabriel Neymark ,  Ellison Carter

    IPC: G01N1/22 ,  G01N21/3518

    Abstract: Disclosed are methods and systems for implementing an automated air quality analysis system. The system includes: a sealed enclosure, a filter sample analysis system disposed within the sealed enclosure, and a controller operably coupled with the filter sample analysis system. The filter sample analysis system includes: an automated filter management system with filter samples and an articulating robotic arm which selects the filter sample for analysis, a filter weighing apparatus for weighting of the filter sample, and a primary chemical analysis apparatus for performing electromagnetic energy spectroscopy measurement on the filter sample. The controller operates the automated filter management system to transport the filter sample to the filter weighing apparatus and the primary chemical analysis apparatus, obtains data from the filter sample analysis system, and determines the type and amount of accumulated mass in the sample based on the weight and the spectroscopy measurement result.

    DISTANCE-BASED QUANTITATIVE ANALYSIS USING A CAPILLARITY-BASED ANALYTICAL DEVICE
    10.
    发明申请
    DISTANCE-BASED QUANTITATIVE ANALYSIS USING A CAPILLARITY-BASED ANALYTICAL DEVICE 审中-公开
    基于距离的量化分析使用基于CAPILLARITY的分析设备

    公开(公告)号：US20140178978A1

    公开(公告)日：2014-06-26

    申请号：US14049155

    申请日：2013-10-08

    Applicant: COLORADO STATE UNIVERSITY RESEARCH FOUNDATION

    Inventor： David M. Cate ,  Josephine C. Cunningham ,  Charles S. Henry ,  John Volckens

    IPC: G01N33/52 ,  G01N21/78 ,  C12Q1/54

    CPC classification number: G01N33/521 ,  C12Q1/54 ,  G01N21/78 ,  G01N2021/0346

    Abstract: Apparatus for quantitative analytical measurements using capillarity-based analytical devices is described. Porous cellulose (i.e., common filter paper) may be used as the reagent carrier for the analyses. Hydrophobic materials may be printed onto the paper to generate paths that restrict liquid flow by capillary action to defined regions. At least one colorimetric reagents effective for reacting with a specific analyte is deposited along a capillary flow path generated in the device. Upon placing the liquid containing the analyte on one end of the path, the liquid moves along the circuit by capillary action, and the flowing analyte reacts with reagent generating color along the flow path until all of the analyte is consumed. Analyte quantification is achieved by measuring the length of the colored portion along a flow path employing a direct-reading measurement scale. Analyses are demonstrated for chemical detection modalities including: enzymatic action, metal complexation, and nanoparticle aggregation, but the present apparatus may be used for a wide range of analytes.

    Abstract translation: 描述了使用基于毛细管作用的分析装置进行定量分析测量的装置。 可以使用多孔纤维素（即普通滤纸）作为用于分析的试剂载体。 疏水材料可以印刷到纸上以产生通过毛细作用将液体流动限制到限定区域的路径。 至少一种有效与特定分析物反应的比色试剂沿着在器件中产生的毛细管流路沉积。 当将含有分析物的液体放置在路径的一端时，液体通过毛细作用沿着电路移动，并且流动的分析物与沿着流动路径产生颜色的试剂反应，直到所有的分析物被消耗。 通过使用直读测量标尺测量沿着流动路径的着色部分的长度来实现分析物定量。 对化学检测方式进行了分析，包括：酶促作用，金属络合和纳米颗粒聚集，但本装置可用于广泛的分析物。

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