Patent ID: 9057688
Filing Date: 2015-06-16
Classification: G01N

Abstract:
1. A detection device which photoelectrochemically detects a test substance that releases electrons by photoexcitation, comprising: an optically permeable working electrode body which accepts electrons from the test substance; a counter electrode; a light source which irradiates excitation light on the test substance on the working electrode body; a reflective part which reflects the excitation light that is emitted from the light source; wherein the reflective part is provided separately from the counter electrode and is provided at a position where the reflective part reflects the excitation light which passes through the working electrode body, toward the test substance on the working electrode body; wherein the detection device produces an increased signal while suppressing an increase in noise, as compared to when the excitation light transmitted through the working electrode body is not reflected, and the counter electrode is provided at a position where the excitation light emitted from the light source is not irradiated.