公开(公告)号：US20220128521A1

公开(公告)日：2022-04-28

申请号：US17436918

申请日：2019-03-13

Applicant: SHIMADZU CORPORATION

Inventor： Takaaki FUJITA

IPC: G01N30/24 ,  G01N30/46 ,  G01N30/20 ,  G01N30/88

Abstract: An autosampler for a chromatograph includes a first injection port through which a sample is injected into a first analysis flow path of the chromatograph, a second injection port through which a sample is injected into a second analysis flow path of the chromatograph, a needle that is movable to both of the first injection port and the second injection port, and injects a sample into the first injection port and the second injection port, a first sample loop that stores a sample to be injected into the first analysis flow path, a second sample loop that stores a sample to be injected into the second analysis flow path, and a metering pump that loads a sample in the first sample loop and the second sample loop.

公开(公告)号：US20220170955A1

公开(公告)日：2022-06-02

申请号：US17437295

申请日：2019-03-13

Applicant: SHIMADZU CORPORATION

Inventor： Takaaki FUJITA

IPC: G01N35/04

Abstract: A plate changer that supplies a plate storing a sample to an autosampler included in an analyzer includes a storage that stores the plate, and a plate transporter that transports the plate by holding the plate, the plate transporter receiving the plate from a first plate changer provided at one side of the plate changer and also transferring the plate received from the first plate changer to a second plate changer or the autosampler provided at another side of the plate changer or transferring the plate stored in the storage to the second plate changer or the autosampler.

公开(公告)号：US20210148869A1

公开(公告)日：2021-05-20

申请号：US17047022

申请日：2019-01-16

Applicant: SHIMADZU CORPORATION

Inventor： Yusuke YOKOI ,  Takaaki FUJITA ,  Takashi INOUE ,  Kenichi YASUNAGA

IPC: G01N30/24 ,  G01N30/32

Abstract: An autosampler is switched selectively between an injecting mode where a sampling flow path is incorporated into an analysis flow path of a liquid chromatograph and a loading mode where the sampling flow path is not incorporated into the analysis flow path and injects a sample into the analysis flow path at a position farther upstream than a separation column by being switched to the injecting mode with the sample held in the sampling flow path, and includes a clog determiner configured to acquire a sending liquid pressure of a liquid sending pump that sends a mobile phase in the analysis flow path, obtain a variation value of the liquid sending pressure when the injecting mode and the loading mode are switched and determine presence or absence of a clog in a system incorporated into the analysis flow path in the injecting mode based on the obtained variation value.