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2. 发明授权

US4891102A Method of determining carbon dioxide in the presence of oxygen 失效
标题翻译：在氧存在下测定二氧化碳的方法
公开(公告)号：US4891102A
公开(公告)日：1990-01-02
申请号：US41636
申请日：1987-04-23
申请人： Wyndham J. Albery , Anthony J. M. Coombs , Humphrey J. J. Drummond , Clive Hahn
发明人： Wyndham J. Albery , Anthony J. M. Coombs , Humphrey J. J. Drummond , Clive Hahn
IPC分类号： G01N27/416 , G01N27/42 , G01N27/44
CPC分类号： G01N27/44 , G01N27/42
摘要： A method of determining one gas in the presence of another, where the one gas is reactive with an electrochemical product of the other, comprisesapplying the gases to one side of a membrane permeable to the two gases, the other side of the membrane retaining a solvent for both gases and for the electrochemical product,applying, for the predetermined duration through a working electrode in contact with the solvent, a potential which electrolyses (e.g. reduces) the (dissolved) other gas to form the said electrochemical product,applying, through the working electrode, a potential for reconverting the product to the dissolved gas,measuring, at a predetermined instant or integrated over a predetermined time slot, the current flowing at the reconversion potential, and,from the amount by which the measured current (or integrated current, i.e. charge) falls short of the current when the said one gas is absent, determining the concentration of the said one gas.Optionally, the said other gas is also determined, by measuring the current flowing at the first potential.The one gas may be carbon dioxide. The other gas may be oxygen. The solvent may be dimethylsulphoxide.
摘要翻译：在另一个气体的存在下确定一种气体的方法，其中一种气体与另一种气体的电化学产物反应，包括将气体施加到可渗透两种气体的膜的一侧，膜的另一侧保持用于两种气体和电化学产物的溶剂，通过与溶剂接触的工作电极施加预定的持续时间，电解（例如减少）其它气体（溶解）形成所述电化学产物的电位，通过工作电极，将产物重新转化为溶解气体的可能性，在预定时刻测量或在预定时间段内积分在回复电位下流动的电流，以及从测量电流（或积分电流，即电荷）在所述一种气体不存在时低于电流，确定所述一种气体的浓度。任选地，还通过测量在第一电位流动的电流来确定所述其它气体。一种气体可以是二氧化碳。其他气体可以是氧气。溶剂可以是二甲基亚砜。

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