US 11,988,648 B2
Liquid chromatograph
Daisuke Nakayama, Kyoto (JP)
Assigned to SHIMADZU CORPORATION, Kyoto (JP)
Appl. No. 16/760,632
Filed by Shimadzu Corporation, Kyoto (JP)
PCT Filed Jul. 25, 2018, PCT No. PCT/JP2018/027880
§ 371(c)(1), (2) Date Apr. 30, 2020,
PCT Pub. No. WO2019/111438, PCT Pub. Date Jun. 13, 2019.
Claims priority of application No. 2017-232579 (JP), filed on Dec. 4, 2017.
Prior Publication US 2020/0348270 A1, Nov. 5, 2020
Int. Cl. G01N 30/24 (2006.01); G01N 30/34 (2006.01); G01N 30/02 (2006.01)
CPC G01N 30/24 (2013.01) [G01N 30/34 (2013.01); G01N 2030/027 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A liquid chromatograph comprising:
a feeding unit configured to feed a mobile phase prepared for an analysis;
an analysis flow path provided with an analytical column for separating a sample and a detector for detecting sample components separated with the analytical column;
a sample injection part configured to inject the sample into the analysis flow path;
a measurement flow path provided separately from the analysis flow path and provided with a measuring instrument for measuring a preparation state of the mobile phase; and
a status switching unit disposed between the feeding unit and the measurement instrument, the status switching unit configured to selectively switch between an analysis state in which all of the mobile phase from the feeding unit flows through the analysis flow path and a measurement state in which at least a part of the mobile phase from the feeding unit flows through the measurement flow path.