SENSORS AND DEVICES FOR DETECTING HUMIC ACID

摘要

PURPOSE: A sensor and device for measuring the concentration of a humic acid is provided to enbale to massively produce by simplifying a structure and manufacturing and to selectively measure the concentration of a humic acid in a field. CONSTITUTION: A sensor and device for measuring the concentration of a humic acid comprises an actuating electrode, a salt mixture section, and a polymer film. The salt mixture section covers the electrode and contains salt selected from a group composed of LiCl, NaCl, KCl, CsCl, and a combination thereof. The polymer film covers the salt mixture section and contains a polymer film selected from a group composed of polyvinyl chloride, silicone rubber, polyurethane, poly-vinyl chloride carboxylate, and a combination thereof. A humic acid is moved from a specimen being supplied from to the salt mixture section through the polymer film so that the concentration of the humic acid is measured by using a potential difference generated in a high-molecular surface.