申请人:Roche Diagnostics Operations, Inc.
公开号:US10590458B2
公开(公告)日:2020-03-17
A method of detecting at least one analyte in a test sample is provided comprising a) contacting the test sample (i) to an active chemistry matrix changing at least one electrochemical property dependent on an enzymatic activity active in the presence of the analyte, the active chemistry matrix contacting a first electrode; and (ii) to an inactive chemistry matrix, the inactive chemistry matrix contacting a second electrode, b) closing an electrical circuit including the first electrode, the second electrode, and the active chemistry matrix and inactive chemistry matrix, followed by determining a first value of the at least one electrochemical property, c) inverting electrical polarity of the electrical circuit of b), followed by determining a second value of the at least one electrochemical property, and d) detecting the at least one analyte based on the first value and on the second value.
本发明提供了一种检测测试样品中至少一种分析物的方法,包括 a) 将测试样品 (i) 与活性化学基质接触,改变至少一种依赖于分析物存在时活性酶活性的电化学性质,活性化学基质与第一电极接触;以及 (ii) 与非活性化学基质接触,非活性化学基质与第二电极接触;b) 闭合包括第一电极、第二电极、活性化学基质和非活性化学基质的电路;b) 闭合包括第一电极、第二电极、活性化学基质和非活性化学基质的电路,然后确定至少一种电化学性质的第一值, c) 反转 b) 电路的极性,然后确定至少一种电化学性质的第二值, d) 根据第一值和第二值检测至少一种分析物。