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21. 发明授权

US11474071B2 Alkalinity measurement of an aqueous sample 有权
公开(公告)号：US11474071B2
公开(公告)日：2022-10-18
申请号：US17007750
申请日：2020-08-31
申请人： Hach Company
发明人： Vishnu Vardhanan Rajasekharan , Corey Alan Salzer
IPC分类号： G01N27/416 , G01N27/30
摘要： An embodiment provides a method for compensating for inteferants in measurement of alkalinity in a reagent-less system, including: introducing an aqueous sample into a measurement device comprising one or more series of electrodes; applying an electrical signal to the aqueous sample using the one or more series of electrodes, wherein the electrical signal is selected from the group consisting of: current and voltage; identifying, during application of the electrical signal, that the electrical signal reaches an oxidation threshold and measuring, prior to reaching the oxidation threshold, a first electrical response to the electrical signal, the first electrical response attributable to interferants in the aqueous sample; identifying, during application of the electrical signal, that the electrical signal reaches an endpoint and measuring, from the oxidation threshold to the endpoint, a second electrical response to the electrical signal; and measuring an alkalinity of the aqueous sample based upon a difference between the first electrical response and the second electrical response. Other aspects are described and claimed.

22. 发明授权

US11460429B2 Method for producing an ISE half-cell, ISE half-cell, sensor, and multi-parameter sensor 有权
公开(公告)号：US11460429B2
公开(公告)日：2022-10-04
申请号：US16103816
申请日：2018-08-14
申请人： Endress+Hauser Conducta GmbH+Co. KG
发明人： Holm Petzold , Jens Vettermann , Erik Hennings
IPC分类号： G01N27/333 , G01N27/30 , G01N27/31
摘要： The present disclosure discloses a method for producing an ISE half-cell, including the steps of: immersing a first end of a hollow body into a membrane solution comprising at least one solvent and an ion-specific ionophore; removing the hollow body from the membrane solution; drying the hollow body and evaporating the solvent from the membrane solution, whereby an ion-selective membrane is created at the immersed end of the hollow body; and completing the hollow body to make an ISE half-cell. The present disclosure also discloses an ISE half-cell that is produced according to such a method. The present disclosure further discloses a sensor and a multiparameter sensor comprising several such ISE half-cells.

23. 发明申请

US20220268729A1 MEASURING ION STRENGTH USING CLOSED-LOOP ELECTROCHEMICAL PH MODULATION 有权
公开(公告)号：US20220268729A1
公开(公告)日：2022-08-25
申请号：US17184274
申请日：2021-02-24
申请人： Robert Bosch GmbH
发明人： Young Shik Shin , Nadezda Fomina , Christopher Johnson , Armin Darvish , Christoph Lang
IPC分类号： G01N27/416 , G01N27/30 , G05D21/02
摘要： Provided is a method for monitoring a change of ion strength in a sample solution by a closed-loop device that provides continuous cycling of electrochemical pH modulation between pre-defined pH values. In particular, the change of ion strength may be induced by a chemical reaction and may ultimately alter the electrical control parameters of the closed-loop device. By measuring such electrical control parameters, the degree and progress of the underlying chemical reaction may be monitored.

24. 发明授权

US11415540B2 Technologies using nitrogen-functionalized pseudo-graphite 有权
公开(公告)号：US11415540B2
公开(公告)日：2022-08-16
申请号：US16292323
申请日：2019-03-05
申请人： ABB Schweiz AG , University of Idaho
发明人： Nolan Nicholas , Ignatius Cheng , Haoyu Zhu , Humayun Kabir , Kailash Hamal , Jeremy May
IPC分类号： G01N27/30 , H01M4/90
摘要： Methods, electrodes, and electrochemical devices using nitrogen-doped pseudo-graphite are disclosed. In one illustrative embodiment, a method may include doping a pseudo-graphite material with nitrogen to form a doped pseudo-graphite material. The method may also include applying the doped pseudo-graphite material to a surface of a substrate of an electrode.

25. 发明授权

US11408851B2 Electrochemical method to determine the sensitivity of a gas sensor by pulse sequences 有权
公开(公告)号：US11408851B2
公开(公告)日：2022-08-09
申请号：US16314914
申请日：2017-07-11
申请人： MSA Europe GmbH
发明人： Sebastian Ross
IPC分类号： G01N27/404 , G01N33/00 , G01N27/30
摘要： An electrochemical method for determining the sensitivity of at least one gas sensor. The method includes applying at least two electrical pulses to at least two parts of at least two electrodes of the gas sensor, recording the change of the current pattern induced in the at least two electrodes by the at least two pulses over time, calculating at least one value for the sensor sensitivity by applying an algorithm to the current pattern induced by the at least two pulses, and comparing the calculated sensitivity value to known gas sensitivity calibration data.

26. 发明授权

US11408849B2 Analyte determination method and analyte meter 有权
公开(公告)号：US11408849B2
公开(公告)日：2022-08-09
申请号：US16840990
申请日：2020-04-06
申请人： AgaMatrix, Inc.
发明人： Ian Harding , Richard Williams , Sridhar Iyengar
IPC分类号： G01N27/327 , C12Q1/00 , G01N27/30
摘要： The presence of oxygen or red blood cells in a sample applied to an electrochemical test strip that makes use of a reduced mediator is corrected for by an additive correction factor that is determined as a function of the temperature of the sample and a measurement that reflects the oxygen carrying capacity of the sample. The measured oxygen carrying capacity can also be used to determine hematocrit and to distinguish between blood samples and control solutions applied to a test strip.

27. 发明申请

US20220236209A1 SYSTEM AND METHOD OF MEASUREMENT AND CALIBRATION OF ANALYTE TESTING 有权
公开(公告)号：US20220236209A1
公开(公告)日：2022-07-28
申请号：US17617866
申请日：2020-06-05
申请人： Siemens Healthcare Diagnostics Inc.
发明人： Jennifer Samproni
IPC分类号： G01N27/333 , G01N27/416 , G01N33/49 , G01N27/30
摘要： The inventive concepts disclosed herein are generally directed to the need to measure a microsample and obtain one or more measurement for one or more analyte in the microsample by configuring a sensor array having one or more first reference signal source interlaced with one or more analyte sensor positioned along the longitudinal axis the sensor body and a second reference signal source positioned downstream of the sensor body along a sample flow path.

28. 发明申请

US20220229057A1 SYSTEMS AND METHODS FOR DETECTING A PATHOGENIC ORGANISM 有权
公开(公告)号：US20220229057A1
公开(公告)日：2022-07-21
申请号：US17614531
申请日：2020-05-28
申请人： Ramot at Tel-Aviv University Ltd. , Adama Makhteshim Ltd.
发明人： Fernando PATOLSKY , Boris FILANOVSKY , Vadim KRIVITSKY , Yoav AVIDOR
IPC分类号： G01N33/569 , C12Q1/00 , C12Q1/42 , C12N15/115 , G01N27/327 , G01N27/30
摘要： A method of detecting a presence, amount and/or type of a pathogenic organism in a substrate is provided. The method is effected by contacting a sample suspected as containing the pathogenic organism or a portion thereof with an electrode, thereafter contacting the electrode with an aptamer that selectively binds to said pathogenic organism; thereafter contacting the electrode with an agent that participates in an electrochemically detectable reaction and thereafter perform the electrochemical reaction while using the electrode. The electric signal produced by the reaction is indicative of a presence and/or amount of the pathogenic organism. Also provided are a sensing system and kits usable for practicing the method, and use of the method for determining a suitable agent for reducing a load of a pathogenic organism in a substrate.

29. 发明申请

US20220229016A1 SYSTEMS AND METHODS FOR ANALYTE DETERMINATION 有权
公开(公告)号：US20220229016A1
公开(公告)日：2022-07-21
申请号：US17595394
申请日：2020-05-15
申请人： LA TROBE UNIVERSITY
发明人： Conor HOGAN , Darrell ELTON , Peter O'CONGHAILE
IPC分类号： G01N27/48 , G01N27/30 , G01N27/413 , G01N27/40 , G01N33/14
摘要： Described are systems and methods for the simple and rapid measurement of an analyte, such as sulphur dioxide, in liquid samples, including beverages such as wine or beer. The systems and methods utilize voltammetry with a particulate carbon or copper electrode, and may be conducted outside of a laboratory in ten to sixty seconds using a small portable instrument or mobile device using, for example, 2nd harmonic Fourier Transform (FT) AC voltammetry.

30. 发明申请

US20220205942A1 Electrochemical Cell Configured To Have A Dynamically Renewed Electrode 有权
公开(公告)号：US20220205942A1
公开(公告)日：2022-06-30
申请号：US17562237
申请日：2021-12-27
申请人： Dionex Corporation , Board of Regents, The University of Texas System
发明人： Purnendu Dasgupta , Charles P. Shelor , Kannan Srinivasan , Christopher A. Pohl
IPC分类号： G01N27/30
摘要： An electrochemical cell comprises a chamber, an inlet port, an outlet port, an electrode port, and a counter electrode. The inlet port is configured to allow flow of a liquid into the chamber and through an inlet opening toward the working electrode, and the outlet port is configured to allow flow of a liquid out of the chamber and through an outlet opening. The device is configured so that a force applied to the working electrode slides the first end face of the working electrode to a distance from a face of the inlet opening due to the balancing force of a fluid flowing out of the inlet opening. The device may be used in a method for analyzing an analyte, such as one or more amino acids in a liquid sample.

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