Method for electrochemically detecting analyte

摘要

In order to provide a method for electrochemically detecting an analyte which can detect an analyte with high detection sensitivity, when detecting an analyte S trapped on a working electrode, a label binding substance 90 in which a labeling substance 93 and a first binding substance 92 which traps the analyte S are at least retained on a support 91 composed of polypeptide is brought into contact with the analyte. Alternatively, a complex containing the analyte S and a label binding substance 290 in which a labeling substance 293 is retained on a binding substance 291 which binds to the analyte S via a modulator 292 is formed. Then, the labeling substance present on the working electrode is electrochemically detected.