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81. 发明申请

US20210003529A1 pH MEASUREMENT OF AN AQUEOUS SAMPLE 有权
公开(公告)号：US20210003529A1
公开(公告)日：2021-01-07
申请号：US16459300
申请日：2019-07-01
申请人： Hach Company , University of Warwick
发明人： Zoë Duncan , Julie Victoria Macpherson , Samuel James Cobb
IPC分类号： G01N27/416 , G01N27/30
摘要： An embodiment provides a device for measuring pH in an aqueous sample, including: at least one measurement electrode comprising a first carbon region, wherein the carbon region comprises a single pH sensitive carbon region, wherein the single pH sensitive carbon region of the measurement electrode is a sp2 carbon region of a boron doped diamond-based pH electrode; at least one reference electrode; at least one auxiliary electrode; and a memory storing instructions executable by a processor to identify a pH of an aqueous sample by measuring an electrical potential between the at least one measurement electrode and the at least one reference electrode. Other aspects are described and claimed.

82. 发明授权

US10859528B2 Gas sensor 有权
公开(公告)号：US10859528B2
公开(公告)日：2020-12-08
申请号：US16297943
申请日：2019-03-11
申请人： NGK INSULATORS, LTD.
发明人： Taku Okamoto
IPC分类号： G01N27/407 , G01N27/30 , G01N27/409
摘要： A mixed-potential type gas sensor includes: a first sensing electrode containing a Pt—Au alloy and a second sensing electrode containing Pt, both sensing electrodes being provided on the surface of a sensor element made of an oxygen-ion conductive solid electrolyte; a reference electrode provided inside the sensor element to be made contact with air; a first protective layer group covering the first sensing electrode; a second protective layer group covering the second sensing electrode; and concentration identification element configured to identify the concentration of a sensing target gas component based on potential differences between both of the first sensing electrode and the second sensing electrode and the reference electrode. The response times of the first and second sensing electrodes are both equal to or shorter than 10 seconds, and the response time difference therebetween is 2 seconds or shorter.

83. 发明申请

US20200340939A1 FLUID ANALYZER FOR MEASURING MAGNESIUM IONS AND METHOD OF CALIBRATING POTENTIOMETRIC MAGNESIUM ION SENSOR THEREIN 审中-公开
公开(公告)号：US20200340939A1
公开(公告)日：2020-10-29
申请号：US16924898
申请日：2020-07-09
申请人： Siemens Healthcare Diagnostics Inc.
发明人： Wei Zhang , Brian Holman , Kevin Horan
IPC分类号： G01N27/333 , G01N33/84 , C12Q1/25 , G01N27/416 , G01N33/50 , G01N33/49 , G01N27/30
摘要： A fluid analyzer for analyzing fluid samples comprising one or more analytes and a method of calibrating such. The fluid analyzer includes a control system to control at least one automated valve to pass at least three calibration reagents through a fluid channel to a secondary ion selective electrode, a primary ion selective electrode, and a reference electrode, and determine calibration information using calibration logic from signals generated by a meter, control the at least one automated valve to selectively pass different subsets of the at least three calibration reagents through the fluid channel to the secondary ion selective electrode, the primary ion selective electrode, and the reference electrode, and determine re-calibration information using the signals generated by the meter and at least one of the calibration information and re-calibration logic.

84. 发明申请

US20200333285A1 ELECTRIC REACTION MEASURING APPARATUS, ELECTRIC REACTION PROCESSING METHOD, AND RECORDING MEDIUM 审中-公开
公开(公告)号：US20200333285A1
公开(公告)日：2020-10-22
申请号：US16920356
申请日：2020-07-02
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： YUMIKO KATO , KIYOTAKA TSUJI
IPC分类号： G01N27/416 , G01N27/30 , C12M1/34
摘要： An electric reaction measuring apparatus measures a potential of each of measurement electrodes, which are respectively disposed in chambers in a culture vessel, with respect to at least one reference electrode. The electric reaction measuring apparatus includes at least one control circuit. A measurement object is disposed in each of the chambers. The at least one control circuit calculates at least one principal component for each of the measurement electrodes by performing principal component analysis of the potential of each of the measurement electrodes; estimates, for each of the measurement electrodes, a potential corresponding to the principal component from the principal component of the measurement electrode, and synthesizes the estimated potential; subtracts the synthesized potential of the measurement electrode from a potential measured at the measurement electrode; and outputs a potential after subtraction.

85. 发明申请

US20200319134A1 MULTI-ENZYMATIC BIOSENSORS AND STABILIZATION OF MULTI-ENZYMATIC BIOSENSORS AT ROOM TEMPERATURE 审中-公开
公开(公告)号：US20200319134A1
公开(公告)日：2020-10-08
申请号：US16429922
申请日：2019-06-03
申请人： Instrumentation Laboratory Company
发明人： Clarke Xu , Prasad Pamidi , Jose Cervera
IPC分类号： G01N27/327 , G01N27/30
摘要： Disclosed are multi-enzyme biosensors that are stable at ambient temperature, and methods of making thereof.

86. 发明授权

US10794857B2 Gas detector 有权
公开(公告)号：US10794857B2
公开(公告)日：2020-10-06
申请号：US15796240
申请日：2017-10-27
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Kazuhiro Wakao , Keiichiro Aoki , Kazuhisa Matsuda
IPC分类号： G01N27/407 , G01N27/416 , G01N27/30 , G01N27/406
摘要： A gas detector includes a measurement control section that controls a voltage application section, obtains an output current flowing between a first electrode and a second electrode of an electrochemical cell, and detects a concentration of sulfur oxides in exhaust gas based on the output current. The measurement control section uses a minimum value of the output current obtained by using a current detection section in a period in which lowering sweep is executed and in which an applied voltage is a voltage within a detection voltage range that is equal to or lower than a decomposition initiation voltage of sulfur oxides as a parameter used for detection of the concentration of sulfur oxides.

87. 发明授权

US10794850B2 Apparatus for sensing environmental pH changes 有权
公开(公告)号：US10794850B2
公开(公告)日：2020-10-06
申请号：US14224468
申请日：2014-03-25
申请人： The Procter & Gamble Company
发明人： Grant Edward Striemer
IPC分类号： G01N27/30 , G01N27/416 , G01N27/12 , G01D9/00
摘要： A sensor comprises: an electrically comprises a switchable polymeric element. The polymeric element has at least a first electrical state and a second electrical state and is switchable between the first and second electrical states as a function of predefined environmental pH changes.The sensor comprises a pH sensitive polymeric matrix and a plurality of conductive particles embedded in the polymeric matrix.

88. 发明申请

US20200300836A1 SYSTEMS AND METHODS FOR POINT-OF-CARE DETECTION OF POTASSIUM 审中-公开
公开(公告)号：US20200300836A1
公开(公告)日：2020-09-24
申请号：US16601433
申请日：2019-10-14
申请人： POLYMER TECHNOLOGY SYSTEMS, INC.
发明人： Christopher Dailey , Gary L. Hughes , Keith Moskowitz
IPC分类号： G01N33/487 , G01N21/64 , G01N33/49 , G01N27/327 , G01N27/30
摘要： Systems and methods for point-of-care determination of blood potassium are provided. The approaches are based on the reaction of ADP and PEP in the presence of potassium ion and pyruvate kinase to produce pyruvate and ATP. In one method, the produced pyruvate is reacted with phosphate and mediator, in the presence of pyruvate oxidase, to yield acetylphosphate and reduced mediator, and the reduced mediator is used to determine the blood potassium using conventional electrochemical methods. In an alternative method, the produced pyruvate is reacted with phosphate and oxygen in the presence of pyruvate oxidase to yield acetylphosphate and hydrogen peroxide, and the hydrogen peroxide is measured optically in accordance with known methods.

89. 发明申请

US20200300799A1 REDUCING GAS SENSOR 审中-公开
公开(公告)号：US20200300799A1
公开(公告)日：2020-09-24
申请号：US16896832
申请日：2020-06-09
申请人： CANON KABUSHIKI KAISHA
发明人： Akira Tsuboyama , Koji Yano
IPC分类号： G01N27/30 , G01N27/04 , G01N33/00 , H01M8/04313 , C07F15/00
摘要： A pair of electrodes; and a reactive layer electrically in contact with the pair of electrodes are included. The reactive layer includes a palladium metal complex represented by General formula (1) below, and a change in electric conductivity between the pair of electrodes is measured to detect a reducing gas. The change is caused by an irreversible redox reaction between the palladium metal complex and the reducing gas. where each of OR1 to OR4 is a monodentate ligand, or forms a polydentate ligand by bonding to each other, or forms a bridging ligand by bonding to a palladium atom different from the palladium atom in General formula (1), and R1 to R4 each have one or more carbons and may be the same or different.

90. 发明授权

US10775334B2 Ruthenium alloys for biosensors 有权
公开(公告)号：US10775334B2
公开(公告)日：2020-09-15
申请号：US15817547
申请日：2017-11-20
申请人： Materion Corporation
发明人： Kevin V. Goodwin , Robert R. Newton , Ian S. Tribick , Ethan Fontaine
IPC分类号： G01N27/327 , C22C5/04 , C12Q1/00 , C23C14/35 , C23C14/20 , C22C27/00 , G01N27/30
摘要： The present disclosure relates to metal alloys for biosensors. An electrode is made from ruthenium metal or a ruthenium-based alloy. The resulting electrode has physical and electrical property advantages when compared with existing pure metal electrodes.

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