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    • 4. 发明申请
    • ELECTRO-CHEMICAL SENSOR
    • 电化学传感器
    • WO2010026456A2
    • 2010-03-11
    • PCT/IB2009006637
    • 2009-08-26
    • SCHLUMBERGER TECHNOLOGY BVSCHLUMBERGER HOLDINGSSCHLUMBERGER CA LTDSCHLUMBERGER SERVICES PETROLPRAD RES & DEV LTDSCHLUMBERGER SEACO INCROBINSON KAYLAWRENCE NATHANMEREDITH ANDREW
    • ROBINSON KAYLAWRENCE NATHANMEREDITH ANDREW
    • G01N27/26G01N27/74
    • G01N33/24
    • The present invention provides an electrochemical sensor having a solid electrically conductive substrate and a compound immobilized thereon which has binding affinity for an analyte species to be detected and also displays electrochemical behaviour which is modified upon binding of that analyte species, so that binding of an analyte species can be detected by measuring electrochemical properties, such as by voltammetry. Desirably the immobilised compound contains both a first moiety with binding affinity for the analyte and a separate second moiety which is a redox system whose electrochemical oxidation/reduction properties become modified when the first moiety binds the analyte. The analyte binding moiety may be a diol or polyol and preferably is a sugar. The electrochemical sensor finds use in methods of analysing reservoir and process fluids, particularly at a subterranean location. The electrochemical sensor may be a component of a downhole tool, adapted for deployment downhole.
    • 本发明提供了一种电化学传感器,其具有固体导电基体和固定在其上的化合物,该化合物对待检测的分析物种类具有结合亲和力,并且还显示出在结合该分析物种类时被修饰的电化学行为,从而使分析物 物种可以通过测量电化学性质,例如伏安法来检测。 理想地,固定的化合物含有对分析物具有结合亲和力的第一部分和分离的第二部分,该第二部分是当第一部分结合分析物时其电化学氧化/还原性质被改变的氧化还原系统。 分析物结合部分可以是二醇或多元醇,并且优选是糖。 电化学传感器可用于分析储层和过程流体的方法,特别是在地下位置。 电化学传感器可以是适用于井下部署的井下工具的部件。