DETECTION OF PLASTIC MICROPARTICLES BY FLOW CYTOMETRY

    公开(公告)号:US20230041820A1

    公开(公告)日:2023-02-09

    申请号:US17758808

    申请日:2021-01-14

    IPC分类号: G01N15/14 G01N33/44

    摘要: The present invention relates generally to the field of plastic microparticles. In particular, the present invention relates to the detection of plastic microparticles in a water-based sample. An embodiment of the present invention relates to a process for detecting and characterizing plastic microparticles in a water-based sample comprising the analysis of the sample by spectral flow cytometry. In accordance with the present invention, the process described herein may comprise the processing of the recorded flow cytometry data by a machine learning algorithm that can distinguish and categorize each particle based on its unique spectrum to characterize, for example, the plastic microparticles.

    METHOD FOR DETERMINING ORIGIN OF CARBON SOURCE OF CHEMICAL SUBSTANCE

    公开(公告)号:US20220334093A1

    公开(公告)日:2022-10-20

    申请号:US17624396

    申请日:2020-07-03

    IPC分类号: G01N30/88 G01N33/44

    摘要: Provided is a method for determining origin of carbon source of chemical substance, which makes it possible to determine whether resource-recycled carbon is used as a carbon raw material from a chemical substance in various goods. The method for determining origin of carbon source of chemical substance includes: a step S1 of acquiring a carbon-14 content rate R1 of a standard chemical substance having carbon element in which carbon has been recycled as a resource; a step S2 of acquiring a carbon-14 content rate R2 of a chemical substance to be identified; a step S3 of calculating a ratio (R2/R1) of the content rate R2 to the content rate R1; and a step S4 of determining that a carbon raw material in the chemical substance to be identified contains resource-recycled carbon based on the ratio (R2/R1).

    Method for detecting residual crosslinking aid

    公开(公告)号:US11415569B2

    公开(公告)日:2022-08-16

    申请号:US16476625

    申请日:2017-05-17

    IPC分类号: G01N33/44 G01N30/88

    摘要: A method for detecting a residual crosslinking aid in a crosslinked resin molded body includes a subject heating step in which a crosslinked resin molded body is heated at a temperature of 500° C. or higher and 700° C. or lower for a time of 3 seconds or more and 30 seconds or less, a subject analysis step in which gas chromatographic analysis is performed on a gas generated in the subject heating step, and a detection step in which an unreacted crosslinking aid is detected on the basis of a peak originating from a residual crosslinking aid in a chromatogram obtained in the subject analysis step.

    TECHNIQUES FOR SELECTION OF LIGHT SOURCE CONFIGURATIONS FOR MATERIAL CHARACTERIZATION

    公开(公告)号:US20220136959A1

    公开(公告)日:2022-05-05

    申请号:US16949601

    申请日:2020-11-05

    申请人: X Development LLC

    摘要: Techniques for selecting a spectroscopic light source include obtaining a light source dataset and a spectroscopic dataset, initializing a genetic algorithm, selecting a first individual solution and a second individual solution from an initial generation of solutions, generating a new individual solution from the first and second individual solutions by combining their respective chromosome encodings, evaluating a specificity of the new individual solution to a target material, adding the new individual solution to a new generation of solutions, populating the new generation of solutions with a plurality of additional individual solutions, generating one or more descendent generations of solutions by iterating the genetic algorithm, selecting one or more implementation individual solutions exhibiting a threshold specificity to the target material, and outputting the one or more implementation individual solutions.

    Power consumption detection system

    公开(公告)号:US11307127B2

    公开(公告)日:2022-04-19

    申请号:US16568223

    申请日:2019-09-11

    发明人: Wen-Ho Chen

    IPC分类号: G01N11/14 G01R22/06 G01N33/44

    摘要: A power consumption detection system includes a controller, a rubber sampling module, a rubber calender, a temperature control module, a mooney sensor, and a power meter. The rubber sampling module samples a rubber material according to a weight value and obtains a rubber to be tested. The rubber calender continuously calenders the rubber to be tested at least six times. The temperature control module maintains the rubber to be tested with a temperature value. The mooney sensor obtains an actual viscosity index and the controller controls the calendaring number of the rubber calender until the target viscosity index is consistent with the actual viscosity index. The power meter records a power consumed by the rubber calender and obtains a power consumption value.

    METHOD OF CLASSIFYING A PLASTIC
    10.
    发明申请

    公开(公告)号:US20210364492A1

    公开(公告)日:2021-11-25

    申请号:US16880062

    申请日:2020-05-21

    摘要: A method of classifying a plastic, wherein the plastic is plasticized by supplying plasticizing energy in the form of mechanical and/or thermal energy with an increase in a temperature of the plastic from an initial temperature value to a final temperature value, a volume and/or a mass of the plastic and the supplied plasticizing energy is detected as measurement parameters by measurement means, in dependence on the detected measurement parameters, the initial temperature value, and the final temperature value at least one of the following is ascertained: a thermal capacity of the plastic and/or a change in enthalpy of the plastic and/or a parameter which can be derived by calculation from the thermal capacity and/or the change in enthalpy, and a plastic group including the plastic is identified on the basis of the ascertained thermal capacity and/or the ascertained change in enthalpy and/or the parameter which can be derived therefrom by calculation.