PARTICULATE CONCENTRATION MEASURING CHIP, MEASURING APPARATUS, AND MEASURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a particulate concentration measuring chip which does not require an apparatus to detect a liquid sample or an apparatus and control to control supply of a liquid sample, but allows a predetermined minute amount of liquid sample to certainly pass through an aperture part. SOLUTION: In a particulate concentration measuring chip 1: a microchannel 4 connected to a sample introduction part is formed; an aperture part 5 is provided in a part of the microchannel 4 which is narrower than the other parts of the microchannel so as to detect the number of particulates when a liquid containing the particulates passes through it; a passage part 4b connected downstream of the aperture part 5 has a predetermined capacity; a stop valve 6 is connected to the aperture part 5 via the passage part 4b; and the liquid containing the particulates is stopped at the stop valve 6. COPYRIGHT: (C)2009,JPO&INPIT