ELECTROCHEMICAL DETECTOR AND ELECTROCHEMICAL DETECTION DEVICE

To provide an electrochemical detector and an electrochemical detection device capable of quickly and accurately detecting a detection target substance in a liquid to be measured including a measurement inhibitor by using a small amount of the liquid to be measured.SOLUTION: The electrochemical detector comprises: a measurement channel through which a liquid to be measured is passed; an inlet for injecting the liquid to be measured into the measurement channel; a liquid feed pump for feeding the liquid to be measured in the measurement channel; a plurality of electrochemical sensor electrodes provided in a path of the measurement channel; a reference electrode; and a potential control device for applying a potential between the electrochemical sensor electrode and the reference electrode and for controlling the applied potential. The electrochemical sensor electrode includes a cylindrical and straight pore path, and is formed by providing a conductive film on a filtration film with a plurality of pores of uniform bore diameter. One or more downstream electrochemical sensor electrodes of the plurality of electrochemical sensor electrodes detect the detection target substance electrochemically.SELECTED DRAWING: Figure 1 【課題】測定阻害物質を含む被測定液中の検出対象物質を、少量の被測定液を用いて迅速かつ正確に検出する電気化学検出器及び電気化学検出装置の提供。【解決手段】被測定液を通液させるための測定用流路と、測定用流路内に前記被測定液を注入する注入口と、測定用流路内の被測定液を送液するための送液ポンプと、測定用流路の経路に設けられた複数の電気化学センサー用電極と、参照電極と、電気化学センサー用電極と参照電極との間に電位を印加するとともに当該印加電位を制御する電位制御装置とを備え、前記電気化学センサー用電極は、孔道が円筒状かつ真直であり、均一な孔径の複数の孔を有するろ過膜の表面に導電膜を有して成り、前記複数の電気化学センサー用電極の下流側の前記電気化学センサー用電極の１つ以上で前記検出対象物質を電気化学的に検出する。【選択図】図１