Title:
THREE-COMPONENT SIMULTANEOUS ANALYSIS DEVICE AND THREE-COMPONENT SIMULTANEOUS ANALYSIS METHOD
Document Type and Number:
WIPO Patent Application WO/2017/138646
Kind Code:
A1
Abstract:
This three-component simultaneous analysis device is a device for detecting three components, comprising methane gas, carbon dioxide and nitrous oxide, contained in atmospheric gas, which is an assay sample. The three-component simultaneous analysis device includes: a first gas flow passage (A); a second gas flow passage (B) and a third gas flow passage (C) located downstream of the first gas flow passage (A); and a switching valve (400) which is located between the first gas flow passage (A) and the second gas flow passage (B) and between the first gas flow passage (A) and the third gas flow passage (C), and which is used to switch between a first state in which the first gas flow passage (A) and the second gas flow passage (B) communicate with one another, and a second state in which the first gas flow passage (A) and the third gas flow passage (C) communicate with one another. The first gas flow passage (A) includes a first column (60) disposed in order to obtain a first gas phase including methane gas, and a second gas phase including carbon dioxide and nitrous oxide. The second gas flow passage (B) includes a hydrogen flame ionization detector (100). The third gas flow passage (C) includes: a second column (70) comprising a packed column; a third column (80) which is downstream of the second column (70), comprises a capillary column or a stainless steel column, and is disposed in order to obtain a third gas phase including carbon dioxide and a fourth gas phase including nitrous oxide; a thermal conductivity detector (200); and an electron capture detector (300).
Inventors:
SUDO SHIGETO (JP)
YAMAMOTO AKINORI (JP)
YAMAMOTO AKINORI (JP)
Application Number:
PCT/JP2017/004967
Publication Date:
August 17, 2017
Filing Date:
February 10, 2017
Export Citation:
Assignee:
NAT AGRICULTURE & FOOD RES ORGANIZATION (JP)
International Classes:
G01N30/88; G01N30/26; G01N30/46; G01N30/66; G01N30/68; G01N30/70; G01N30/78
Foreign References:
| JP2006275844A | 2006-10-12 | |||
| JP2010054240A | 2010-03-11 |
Other References:
SHIGETO SUDO: "Gas Chromatography ni yoru Dojo Yurai Onshitsu Koka Gas 3 Seibun no Keisoku Hoho no Shinten ni Tsuite", ABSTRACTS OF THE ANNUAL MEETING, JAPANESE SOCIETY OF SOIL SCIENCE AND PLANT NUTRITION, 9 September 2015 (2015-09-09), pages 183
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
Download PDF: