在微管道两端施加一定的电压时，置于这个电场中的金属或半导体带与溶液的界面电势差达到一定的数值后，就会引起溶液电活性物质在其两端发生氧化还原反应，该金属或半导体带即称为双极电极（BPE）. BPE与电致化学发光（ECL）技术的完美结合有诸多优点，如浓度富集、灵敏度高、成本低、装置轻便且不需要外加光源等，极适合生物分析检测. 本文综述了双极电极-电致化学发光技术在生物分析中的应用，并展望相关发展趋势.

Bipolar electrodes (BPEs) are electronic conductors which are usually embedded into microchannels. The potential difference at the BPE/solution interface is obtained by applying a voltage at the two ends of the microchannel. When it reaches a critical value, the redox reaction takes place at both poles of the BPE simultaneously. Compared with other detection methods, the electrochemiluminescence (ECL) platform based on BPE possesses the advantages of concentration enrichment, high sensitivity, low cost, portable sensor system, no need for a light source, which is quite suitable for bioanalysis. This paper reviews the ECL-BPE strategy for bioanalysis and proposes the future research trends.