Title:
AUTO SAMPLER
Document Type and Number:
Japanese Patent JP2016138744
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent a liquid from being ejected from the tip of a needle when the needle is pulled out of an injection port.SOLUTION: An auto sampler is provided with a pressure release actuation unit which, by controlling a needle drive mechanism and the operation of a switching mechanism, switches the switching mechanism before the tip of a needle is pulled out of an injection port while a sampling passage is interposed between a liquid sending device and an analytical column so that the sampling passage does not exist between the liquid sending device and the analytical column and a system including the sampling passage is left open, and stands by until the pressure inside the sampling passage returns to atmospheric pressure.SELECTED DRAWING: Figure 2
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Inventors:
NAKAMURA YASUAKI
Application Number:
JP2015011913A
Publication Date:
August 04, 2016
Filing Date:
January 26, 2015
Export Citation:
Assignee:
SHIMADZU CORP
International Classes:
G01N30/24; G01N30/26; G01N30/32
Domestic Patent References:
| JP2001255316A | 2001-09-21 | |||
| JP2012529016A | 2012-11-15 | |||
| JP2014095613A | 2014-05-22 |
Foreign References:
| US20100288025A1 | 2010-11-18 | |||
| US20120132013A1 | 2012-05-31 | |||
| WO2009041441A1 | 2009-04-02 | |||
| US20100326215A1 | 2010-12-30 |
Attorney, Agent or Firm:
Shigeo Noguchi
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