A substance in liquid detection device using the same and a substance in liquid detection sensor

摘要

Providing a liquid substance detection apparatus using the liquid substance detection sensor is used makes it possible to accurately measure the target substance in a liquid of small volume, a surface acoustic wave device. Recess 2c, 2d are provided on the upper surface of the base substrate 2, SAW elements 4 and 5 are mounted recess 2c, and 2d, so as to expose the sensing portion of the upper surface of the SAW elements 4, the opening resin layer 3 provided 3b, is 3c is formed, provided on the SAW device of at least one of the SAW elements 4 and 5 the reaction film made of a material which binds with the target substance so as to cover the sensing portion surface has been, the target substance-containing liquid is supplied opening 3b, from 3c, a substance in liquid detection sensor 1.