Title:
MICRO ANALYSIS CHIP, ELECTROLYTE CONCENTRATION MEASURING SYSTEM, AND ELECTROLYTE CONCENTRATION MEASURING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/054095
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a micro analysis chip with which it is possible to ensure a sufficient contact surface area between a specimen and an ion-selective membrane and a sufficient quantity of the specimen that reacts with the ion-selective membrane, and which has excellent measuring sensitivity and ion selectivity. The following micro analysis chip is provided in order to solve this problem. That is, the micro analysis chip has a flow passage region that is enclosed by a flow passage wall provided inside a porous substrate, wherein: the flow passage region includes a first flow passage chamber, a second flow passage chamber, and a flow passage joining the first flow passage chamber and the second flow passage chamber; the first flow passage chamber includes a reference electrode; the second flow passage chamber includes a working electrode; the working electrode is covered by an ion-selective membrane that includes a component having ion selectivity; and an exposed surface of the ion-selective membrane constitutes a dispensing portion onto which the specimen is dispensed.
Inventors:
IKAMI YASUKAZU (JP)
FUKATSU MAKOTO (JP)
MIURA JUN (JP)
TANAKA MASANORI (JP)
MAEDA HARUNOBU (JP)
ENOKIDO FUKA (JP)
MATSUKAWA AKIHISA (JP)
ABE KATSUICHI (JP)
MIYAZAKI KEIJI (JP)
YAMAMOTO TAKESHI (JP)
FUKATSU MAKOTO (JP)
MIURA JUN (JP)
TANAKA MASANORI (JP)
MAEDA HARUNOBU (JP)
ENOKIDO FUKA (JP)
MATSUKAWA AKIHISA (JP)
ABE KATSUICHI (JP)
MIYAZAKI KEIJI (JP)
YAMAMOTO TAKESHI (JP)
Application Number:
PCT/JP2022/035105
Publication Date:
April 06, 2023
Filing Date:
September 21, 2022
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
G01N27/333; G01N27/28; G01N27/30; G01N27/416
Foreign References:
| US20160033438A1 | 2016-02-04 | |||
| JP2008026145A | 2008-02-07 | |||
| JP2002039990A | 2002-02-06 | |||
| US20120181184A1 | 2012-07-19 | |||
| JP2021039095A | 2021-03-11 | |||
| JP6415827B2 | 2018-10-31 | |||
| JP2021158507A | 2021-10-07 |
Other References:
RUECHA NIPAPAN, CHAILAPAKUL ORAWON, SUZUKI KOJI, CITTERIO DANIEL: "Fully Inkjet-Printed Paper-Based Potentiometric Ion-Sensing Devices", ANALYTICAL CHEMISTRY, AMERICAN CHEMICAL SOCIETY, US, vol. 89, no. 19, 3 October 2017 (2017-10-03), US , pages 10608 - 10616, XP093053067, ISSN: 0003-2700, DOI: 10.1021/acs.analchem.7b03177
NIPAPAN RUECHAORAWON CHAILAPAKULKOJI SUZUKIDANIEL CITTERIO: "Fully Inkjet-Printed Paper-Based Potentiometric Ion-Sensing Devices", ANALYTICAL CHEMISTRY, vol. 89, 29 August 2017 (2017-08-29), pages 10,608 - 10,616
NIPAPAN RUECHAORAWON CHAILAPAKULKOJI SUZUKIDANIEL CITTERIO: "Fully Inkjet-Printed Paper-Based Potentiometric Ion-Sensing Devices", ANALYTICAL CHEMISTRY, vol. 89, 29 August 2017 (2017-08-29), pages 10,608 - 10,616
Attorney, Agent or Firm:
OKABE Yuzuru et al. (JP)
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