Potentiostatic circuits for electrochemical sensors
    22.
    发明公开
    Potentiostatic circuits for electrochemical sensors 审中-公开
    Potentiostatische Schaltungenfürelektrochemische Sensoren

    公开(公告)号:EP2860517A1

    公开(公告)日:2015-04-15

    申请号:EP14185456.2

    申请日:2014-09-18

    IPC分类号: G01N27/404 G01N27/49

    摘要: An electrochemical detector can be powered partly, or entirely by voltages generated by the sensor. Using either active circuits or a passive component which produces a predetermined voltage drop in the respective sensor, two electrode consumable anode oxygen sensors can be provided which do not evolve hydrogen during operation.

    摘要翻译: 电化学检测器可部分供电,或完全由传感器产生的电压供电。 使用在相应传感器中产生预定电压降的有源电路或无源部件,可以提供在操作期间不产生氢气的两个电极可消耗的阳极氧传感器。

    PULSED SIGNAL TESTING OF BIOLOGICAL FLUID
    23.
    发明公开
    PULSED SIGNAL TESTING OF BIOLOGICAL FLUID 审中-公开
    脉冲信号测试的生物液体

    公开(公告)号:EP2844990A1

    公开(公告)日:2015-03-11

    申请号:EP13720526.6

    申请日:2013-05-02

    摘要: A method of measuring a sample that includes at least one reactant that can be oxidised and reduced between at least one working electrode and a counter electrode. The method involves: applying across the working and counter electrodes a cycle of at least three pulses, and measuring current at the working electrode during each pulse, wherein the at least three pulses comprise at least one over-potential pulse that has an amplitude equal to or greater than an oxidation or a reduction peak potential of the reactant; at least one under-potential pulse of amplitude less than the at least one over-potential pulse, and at least one other over-potential pulse or under-potential pulse.

    Transient decay amperometry
    24.
    发明公开
    Transient decay amperometry 审中-公开
    瞬态衰减电流分析法

    公开(公告)号:EP2679150A2

    公开(公告)日:2014-01-01

    申请号:EP13184225.4

    申请日:2007-10-15

    摘要: A biosensor system determines an analyte concentration of a biological sample using an electrochemical process without Cottrell decay. The biosensor system generates an output signal having a transient decay, where the output signal is not inversely proportional to the square root of the time. The transient decay is greater or less than the -0.5 decay constant of a Cottrell decay. The transient decay may result from a relatively short incubation period, relatively small sample reservoir volumes, relatively small distances between electrode surfaces and the lid of the sensor strip, and/or relatively short excitations in relation to the average initial thickness of the reagent layer. The biosensor system determines the analyte concentration from the output signal having a transient decay.

    摘要翻译: 生物传感器系统使用没有Cottrell衰变的电化学过程来确定生物样品的分析物浓度。 生物传感器系统产生具有瞬态衰减的输出信号,其中输出信号不与时间的平方根成反比。 瞬态衰减大于或小于Cottrell衰变的-0.5衰减常数。 瞬时衰变可能由相对较短的温育时间,相对小的样品储存容积,电极表面与传感带盖之间的相对小的距离,和/或相对于试剂层的平均初始厚度的相对短的激发而引起。 生物传感器系统根据具有瞬时衰减的输出信号确定分析物浓度。

    DEVICE AND METHOD FOR MEASURING BIOMARKERS
    25.
    发明公开
    DEVICE AND METHOD FOR MEASURING BIOMARKERS 审中-公开
    设备和方法测量的生物标志物

    公开(公告)号:EP2641080A1

    公开(公告)日:2013-09-25

    申请号:EP11788608.5

    申请日:2011-11-18

    申请人: Senzair B.V.

    IPC分类号: G01N27/49 G01N33/497

    摘要: The invention relates to a device for the measurement of hydrogen peroxide and optionally other biomarkers in a gaseous mixture, and in particular to a microfabricated device. The device comprises hydrogen peroxide capturing means and an electromechanical sensor comprising a sensing element in direct contact with the capturing means. The device further comprises means to measure the potential of the sensing element and/or the current through it as a result of a changing hydrogen peroxide concentration in the gaseous mixture. The device also comprises cooling/heating means for cooling and/or heating the capturing means. The device is preferably applied for online measurement of the hydrogen peroxide content in exhaled air.

    METHODE DE DOSAGE DES NITRATES ET/OU DES NITRITES EN MILIEU NEUTRE
    27.
    发明公开
    METHODE DE DOSAGE DES NITRATES ET/OU DES NITRITES EN MILIEU NEUTRE 审中-公开
    硝酸盐和/或亚硝酸盐的方法配比在中性介质

    公开(公告)号:EP2502059A1

    公开(公告)日:2012-09-26

    申请号:EP10798172.2

    申请日:2010-11-17

    IPC分类号: G01N27/38 G01N27/49 G01N33/18

    CPC分类号: G01N27/38 G01N27/404

    摘要: The present invention relates to a method for proportioning nitrate and/or nitrite ions in a solution using a copper electrode, said method being characterized in that it is carried out in constant potential mode and moreover in that it includes the steps of: i. applying a first potential to the copper electrode so as to reduce the copper oxides present on the surface of the metal copper electrode; ii. applying a second potential to the copper electrode so as to oxidize the metal copper formed in Step i into cupric ions; iii. applying a third potential to the copper electrode so as to reduce the copper oxides possibly formed in Step ii, Steps i through iii being carried out in a support electrolyte; and iv. proportioning the nitrate and/or nitrite ions of a solution to be analyzed by means of immersing the copper electrode, obtained in Step iii, in said solution to be analyzed while applying a fourth potential to the copper electrode so as to reduce the nitrate and/or nitrite ions, the support electrolyte of Steps i through iii, and the solution to be analyzed in Step iv, having a substantially neutral pH.

    SENSOR COMPRISING VENT MEMBER
    28.
    发明公开
    SENSOR COMPRISING VENT MEMBER 有权
    出血元件传感器

    公开(公告)号:EP2494345A1

    公开(公告)日:2012-09-05

    申请号:EP10776021.7

    申请日:2010-10-28

    IPC分类号: G01N27/49 H01M2/10 H01M8/24

    CPC分类号: G01N27/304 G01N27/404

    摘要: A sensor includes a housing, at least two electrodes within the housing, an electrolyte providing ionic conductivity between the electrodes and a vent member including a first section including a portion extending through a passage in the housing. The vent member also includes at least one extending member connected to the first section that extends through at least a portion of an interior of the housing. The first section of the vent member is porous so that gas can diffuse from the interior of the housing to an exterior of the housing via the vent member.

    METHOD AND DEVICE FOR THE ELECTROCHEMICAL PSEUDO-TITRATION OF ANTIOXIDANT SUBSTANCES
    29.
    发明授权
    METHOD AND DEVICE FOR THE ELECTROCHEMICAL PSEUDO-TITRATION OF ANTIOXIDANT SUBSTANCES 有权
    方法和设备电化学PSEUDOTITRATION抗氧化剂的研究

    公开(公告)号:EP1856516B1

    公开(公告)日:2012-05-09

    申请号:EP05715983.2

    申请日:2005-03-11

    IPC分类号: G01N27/48 G01N27/49

    CPC分类号: G01N27/44 G01N33/48707

    摘要: The method according to the invention consists of generating an electrochemical signature of the analyzed substance(s), obtained by carrying out a numerical pseudo-titration and to express the result of the measurements in antioxidant power units. It involves the processing of a current-potential response of the oxidation of the analyzed substance(s) by a predefined mathematical dimensionless function representing a virtual and ideal oxidizing agent. The method is useful for the identification and/or detection and/or titration of antioxidant substances in the tested material, including directly on wet biological tissues.