发明名称 Electrochemical sensors
摘要 An electrochemical system for determining the concentration of an analyte in a solution has a first electrode 6 for immersion in the solution 10 and transducer means 12 for oscillating the solution in a vertical direction relative to the first electrode 6. A bias voltage is applied between the first electrode 6 and a second electrode 13 which is also immersed in the solution. Phase sensitive detection means is provided and comprises a current to voltage converter coupled in series with the first and second electrodes. The output voltage provided by the converter is coupled to an input of a lock-in amplifier which also receives an input signal corresponding to an oscillating signal used to drive the transducer means 12. The lock-in amplifier provides an output signal which is proportional to the faradaic component flowing through that portion of the first electrode which is oscillating into and out of the solution.
申请公布号 GB2296975(B) 申请公布日期 1999.02.03
申请号 GB19960000467 申请日期 1996.01.10
申请人 * GLASGOW CALEDONIAN UNIVERSITY COMPANY LIMITED 发明人 ARTHUR * MCNAUGHTAN
分类号 G01N27/28;G01N27/416;(IPC1-7):G01N27/416 主分类号 G01N27/28
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