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    • 5. 发明申请
    • Electrochemical Sensor
    • 电化学传感器
    • US20100133120A1
    • 2010-06-03
    • US12531093
    • 2008-03-17
    • Mark VarneyMicheal GarrettDeryk WilliamsFrancis Marken
    • Mark VarneyMicheal GarrettDeryk WilliamsFrancis Marken
    • G01N27/26G01N27/30
    • G01N33/497
    • An electrochemical sensor (40) is provided, the sensor comprising a working electrode (44); a counter electrode (46); and an ionic liquid medium extending between the working electrode and the counter electrode, the ionic liquid medium comprising an ionic liquid retained in a support material. The ionic liquid may comprise a cation selected from 1-alkyl-3-methylimidazolium ([CnMIM]), N-alkylpyridinium, tetraalkylammonium or tetraalkylphosphonium cations and an anion selected from hexafluorophosphate [PF6]; tetrafluoroborate [BF4]; trifluoromethylsulfonate [CF3SO3]; bis[(trifluoromethyl)sulfonyl]amide [(CF3SO2)2N]; trifluoroethanoate [CF3CO2]; acetate [CH3CO2]; nitrate, and halides, including fluoride [F] 1 chloride [Cl], and bromide [Br]. The sensor is particularly useful in the detection of gaseous components in the exhaled breath of a subject and for use in monitoring the lung function of the subject, for example to identify the onset of asthma and/or COPD.
    • 提供一种电化学传感器(40),该传感器包括工作电极(44); 对电极(46); 以及在工作电极和对电极之间延伸的离子液体介质,离子液体介质包含保留在支撑材料中的离子液体。 离子液体可以包含选自1-烷基-3-甲基咪唑鎓([CnMIM]),N-烷基吡啶鎓,四烷基铵或四烷基鏻阳离子的阳离子和选自六氟磷酸盐[PF6]的阴离子。 四氟硼酸盐[BF4]; 三氟甲磺酸盐[CF 3 SO 3]; 双[(三氟甲基)磺酰基]酰胺[(CF 3 SO 2)2 N]; 三氟乙酸盐[CF 3 CO 2]; 乙酸酯[CH3CO2]; 硝酸盐和卤化物,包括氟化物[F] 1氯化物[Cl]和溴化物[Br]。 传感器特别可用于检测受试者的呼出气中的气体组分并用于监测受试者的肺功能,例如用于鉴定哮喘和/或COPD的发作。
    • 7. 发明申请
    • Gas Sensor
    • 气体传感器
    • US20090272656A1
    • 2009-11-05
    • US12446046
    • 2007-10-17
    • Mark VarneyMichael GarrettDeryk Williams
    • Mark VarneyMichael GarrettDeryk Williams
    • G01N27/26G01N27/28
    • G01N27/4045A61B5/0836G01N33/004G01N33/497
    • A method for the determination of the carbon dioxide content of an exhaled gas stream is provided, the method comprising measuring the water vapour content of the exhaled gas stream, and determining the concentration of carbon dioxide in the exhaled gas stream from the measured water vapour content. A particular method comprises causing the gas stream to impinge on a sensing element comprising a working electrode and a counter electrode; applying an electric potential across the working electrode and counter electrode; measuring the current flowing between the working electrode and counter electrode as a result of the applied potential; and determining from the measured current flow an indication of the concentration of the water vapour in the gas stream. A sensor is also described.
    • 提供了一种用于确定呼出气体流的二氧化碳含量的方法,所述方法包括测量呼出气流的水蒸气含量,以及从测量的水蒸汽含量确定呼出气流中二氧化碳的浓度 。 一种特定的方法包括使气流冲击到包括工作电极和对电极的感测元件上; 在工作电极和对电极两端施加电位; 测量作为施加电位的结果在工作电极和对电极之间流动的电流; 并根据所测量的电流流量确定气流中水蒸气浓度的指示。 还描述了传感器。
    • 10. 发明申请
    • Electrochemical gas detection apparatus and method comprising a permeable membrane and an aqueous electrolyte
    • 电化学气体检测装置和方法,其包括可渗透膜和水性电解质
    • US20050247574A1
    • 2005-11-10
    • US11058084
    • 2004-12-09
    • Mark Varney
    • Mark Varney
    • G01N27/28G01N27/30G01N27/416G01N33/00G01N27/26
    • G01N27/4162G01N33/004
    • A method for the electrochemical detection of carbon dioxide, which comprises causing at least a portion of the carbon dioxide to pass through a permeable membrane and dissolve in an aqueous electrolyte containing a metal ion and an organic ligand to form in situ in the electrolyte an equilibrium between the dissolved carbon dioxide species, the metal ion and the ligand concentrations and measuring the varying metal ion concentration and hence calculating the corresponding carbon dioxide concentration by means of measuring a current passing between electrodes present in the electrolyte. Also a gas detection apparatus comprising a housing, a gas permeable membrane, an aqueous electrolyte inside the housing with electrodes. The concentration of the gas is determined amperometrically.
    • 一种用于电化学检测二氧化碳的方法,其包括使至少一部分二氧化碳通过可渗透膜并溶解在含有金属离子和有机配体的含水电解质中以在电解质中原位形成平衡 在溶解的二氧化碳物质,金属离子和配体浓度之间,并测量不同的金属离子浓度,从而通过测量存在于电解质中的电极之间的电流来计算相应的二氧化碳浓度。 还有一种气体检测装置,其包括壳体,透气膜,壳体内的含有电极的水性电解质。 气体的浓度由电流计确定。