US 11,921,094 B2
Liquid chromatographic system
Tomohiro Gomi, Kyoto (JP); Daisuke Kitabayashi, Kyoto (JP); Shinya Imamura, Kyoto (JP); and Keisuke Ogawa, Kyoto (JP)
Assigned to Shimadzu Corporation, Kyoto (JP)
Appl. No. 17/438,418
Filed by SHIMADZU CORPORATION, Kyoto (JP)
PCT Filed Mar. 13, 2019, PCT No. PCT/JP2019/010217
§ 371(c)(1), (2) Date Sep. 11, 2021,
PCT Pub. No. WO2020/183638, PCT Pub. Date Sep. 17, 2020.
Prior Publication US 2022/0146473 A1, May 12, 2022
Int. Cl. G01N 30/86 (2006.01); G01N 30/32 (2006.01); G01N 30/02 (2006.01)
CPC G01N 30/8675 (2013.01) [G01N 30/32 (2013.01); G01N 2030/027 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A liquid chromatographic system comprising:
an analysis flow path connected to at least one liquid sending pump having a liquid sending mode and through which liquid flows that is sent by the liquid sending pump;
a sample injector configured to inject a sample into the analysis flow path;
a separation column configured to separate the injected sample into components;
a detector configured to detect the separated components;
a computer circuit, executing a program, configured to:
specify as a system configuration a count and a connection structure of the liquid sending pumps connected to the analysis flow path;
store, for each of a plurality of different types of system configurations, a preset condition for detecting a liquid sending failure of the liquid sending pump based on the liquid sending mode of the at least one liquid sending pump;
determine the stored preset condition for the specified system configuration and the liquid sending mode of the at least one liquid sending pump; and
detect a liquid sending failure of the liquid sending pump using the determined preset condition.