公开(公告)号：US20240192182A1

公开(公告)日：2024-06-13

申请号：US18286499

申请日：2022-02-03

Applicant: Hitachi High-Tech Corporation

Inventor： Yu IIJIMA ,  Yusuke SHIMIZU ,  Shuhei YAMAMURA ,  Yushi HARADA

IPC: G01N30/60 ,  G01N30/02 ,  G01N30/46

CPC classification number: G01N30/6043 ,  G01N30/466 ,  G01N2030/027

Abstract: An analyzer capable of preventing unintended removal of a separation column is provided. A liquid chromatograph includes: a plurality of separation columns, and that are connected in parallel and removable; a plurality of analysis flow passages that are respectively connected to the plurality of separation columns and configured to allow a sample to flow through each of the plurality of separation columns; a lock mechanism that is configured to restrict removal of the separation columns and other than the separation column to be removed; and a control device that is configured to control the lock mechanism.

公开(公告)号：US20240192181A1

公开(公告)日：2024-06-13

申请号：US18286590

申请日：2022-02-02

Applicant: HITACHI HIGH-TECH CORPORATION

Inventor： Yusuke SHIMIZU ,  Yu IIJIMA ,  Taichiro YAMASHITA ,  Ai MASUDA ,  Daichi FURUKAWA

IPC: G01N30/46 ,  G01N30/60

CPC classification number: G01N30/46 ,  G01N30/6043 ,  G01N30/6091

Abstract: A chromatograph allows easy replacement of a separation column while preventing an operator from contacting with a configuration related to the separation column. A column cartridge accommodates the separation column and is detachably provided in a predetermined column installation position. An upstream pipe is detachably provided on the column cartridge in a state of being installed at the column installation position, and supplies a mobile phase to the separation column of the column cartridge. A downstream pipe is detachably provided on the column cartridge in a state of being installed at the column installation position, and delivers the mobile phase that has passed through the separation column of the column cartridge. A cover integrally covers the column installation position, the upstream pipe, and the downstream pipe and has an insertion hole that allows the column cartridge to be installed from the outer side of the cover.

公开(公告)号：US20240060941A1

公开(公告)日：2024-02-22

申请号：US18265787

申请日：2021-11-26

Applicant: HITACHI HIGH-TECH CORPORATION

Inventor： Taichiro YAMASHITA ,  Shoji TOMIDA ,  Yusuke SHIMIZU ,  Yu IIJIMA ,  Ai MASUDA ,  Daichi FURUKAWA

IPC: G01N30/60

CPC classification number: G01N30/6047 ,  G01N30/606 ,  G01N30/6091 ,  G01N30/54

Abstract: A technique for replacing a separation column includes: a driving device supporting a first pipe along a first direction; a fixing member that fixes a second pipe to be opposed to the first pipe along the first direction; a column case between the first pipe and the second pipe, having a first and second holes communicating with the first and second pipes, respectively; and an interlocking mechanism that moves the column case in the first direction in conjunction with movement of the first pipe. The column case allows a column cartridge retaining a separation column to be connected and disconnected. The driving device moves the first pipe and the interlocking mechanism such that two states are reversibly taken; a closed state in which the separation column is between the first and second pipes and an open state in which the first and second pipes are positioned outside the column case.