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    • 8. 发明申请
    • METHOD FOR MEASURING THE CONCENTRATION OR CHANGE IN CONCENTRATION OF A REDOX-ACTIVE SUBSTANCE AND CORRESPONDING DEVICE
    • 用于测量还原性物质和相关装置的浓度或浓度变化的方法
    • WO2005073708A3
    • 2005-10-27
    • PCT/EP2005050333
    • 2005-01-26
    • SIEMENS AGBARLAG HEIKEGUMBRECHT WALTERMUND KONRAD
    • BARLAG HEIKEGUMBRECHT WALTERMUND KONRAD
    • C12Q1/00G01N27/49
    • G01N27/3277G01N2333/916Y10T436/143333
    • In order to follow the change in concentration of a redox-active substance, potential suitable for a reducing process or oxidation process are applied to the working electrode of a measuring device. According to the invention, the potential of the working electrode is pulsed and measuring phases and relaxation phases are alternately produced, the pulse lengths of the measuring phase and relaxation phase being predetermined in a suitable manner. In this manner, a rapid relaxation of the concentration gradient is forced electrochemically so that the measurement can be carried out on simple transducer arrays. The device for carrying out the inventive method comprises a transducer array in addition to a suitable potentiostat. Said transducer array may comprise a planar metal substrate (1) on which at least one flexible insulator (2) having a firm connection between the metal surface and the insulator surface is located. The array is generated by suitably structuring the substrate.
    • 为了追求氧化还原活性物质浓度的变化,对测量装置的工作电极施加用于还原过程或氧化过程的合适电位。 根据本发明,工作电极的电位被脉冲化并且交替地形成测量相位和松弛相位,测量相位和松弛相位的脉冲长度以适当的方式被预先确定。 因此,浓度梯度的快速弛豫以电化学方式进行,从而可以在简单的换能器阵列上进行测量。 在用于执行该方法的装置中,除了合适的恒电位仪之外还存在换能器阵列。 换能器阵列可以由平面金属基板(1)构成,在所述平面金属基板(1)上设置有至少一个具有金属表面和绝缘体表面的固定连接的柔性绝缘体(2)。 该数组是通过适当的结构创建的。