Title:
DEGASSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/077802
Kind Code:
A1
Abstract:
A degassing device is provided with: a degassing flow path; a vacuum chamber; a vacuum pump; an inlet flow path; an outlet flow path; a drain flow path; a downstream switching unit; and a control unit. The degassing flow path is formed from a gas-permeable, liquid-impermeable tube and is accommodated in the vacuum chamber. The inlet flow path is for guiding the mobile phase into the degassing flow path and the outlet flow path is for effecting outflow of the mobile phase subsequent to travel through the degassing flow path. The drain flow path is provided separately from the outlet flow path and is for effecting outflow of the mobile phase in the degassing flow path. The downstream switching unit is constituted so as to switch and connect the downstream end of the degassing flow path to either the outlet flow path or the drain flow path. The control unit controls the movement of the downstream switching unit and is constituted so as to connect the downstream end of the degassing flow path to the drain flow path and discharge the mobile phase through the drain flow path at a predefined timing at which feeding of the mobile phase by means of a liquid feed pump is stopped.
Inventors:
JINGU KUMIKO (JP)
Application Number:
PCT/JP2018/023551
Publication Date:
April 25, 2019
Filing Date:
June 21, 2018
Export Citation:
Assignee:
SHIMADZU CORP (JP)
International Classes:
B01D19/00; B01D61/00; B01D63/06; B01D65/06; G01N30/26
Foreign References:
| JPS50124995U | 1975-10-14 | |||
| JP2014062827A | 2014-04-10 | |||
| JP2017058148A | 2017-03-23 | |||
| JP2012093352A | 2012-05-17 | |||
| JP2010151671A | 2010-07-08 | |||
| JP2012161723A | 2012-08-30 |
Attorney, Agent or Firm:
NOGUCHI Daisuke (JP)
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