Shimadzu Corporation

Tomohiro Shagawa

Satoru Watanabe

Takayuki Iriki

Soichiro Tamaoki

Taichi Tomono

Shiori Ueda

Tomoyuki Yamazaki

Shohei Sato

Iori Otomo

Saki Yoshino

A preparative liquid chromatograph for separating and extracting components in a sample, the preparative liquid chromatograph including a separation channel () through which a mobile phase flows, an injector () that injects the sample into the mobile phase, a separation column () for separating components in the sample injected into the mobile phase, the separation column () being provided downstream of the injector () on the separation channel (), a detector () for detecting peaks of the components separated by the separation column (), a fraction collector () configured to collect an eluate from the separation column () into a plurality of collection containers () at a downstream of the detector () while fractionating the eluate, and a controller () for controlling operation of the fraction collector (), wherein the fraction collector () is provided with peak collection containers () and waste liquid collection containers (), each peak collection container () is used for collecting a peak portion including a collection target peak detected by the detector () in the eluate, and each waste liquid collection container () is used for collecting a waste liquid portion not including the collection target peak in the eluate, and the controller () is configured to collect the peak portion including the collection target peak detected by the detector () in the eluate in the peak collection container (), and to collect at least a part of the waste liquid portion in the waste liquid collection container ().

Preparative liquid chromatograph

A separation column (), an injector () that injects a sample into a mobile phase flowing through a flow path () leading to the separation column (), at least one detector () that is fluidly connected downstream of the separation column (), and generates a plurality of detector signals different from each other derived from a component in a sample separated by the separation column (), a fraction collector () for fractionating and collecting a portion containing a component separated by the separation column () in an eluate from the separation column () into an individual collection container, and a controller () that detects a component peak in a plurality of chromatograms based on each of a plurality of the detector signals and controls operation of the fraction collector () based on a result of the detection are included. The controller () includes a fractionating collection part () configured to execute fractionating collection in which a portion detected as a component peak only in one chromatogram of a plurality of the chromatograms and a portion detected as a component peak in all of a plurality of the chromatograms are collected separately in collection containers different from each other.

A liquid chromatography separation system includes a separator, a collector, a switch valve and a collection controller. The collector has at least one sample loop and connects the sample loop to a position farther downstream than the separator and collect an eluate including a desired sample component among sample components obtained by separation in the separator in the sample loop. The switch valve switches between a state in which the separator is connected the sample loop and a state in which the separator is not connected to the sample loop. The collection controller is configured to control an operation of switching the switch valve and collect a predetermined amount, which is equal to or smaller than a volume of the sample loop, of an eluate including a desired sample component obtained by separation in the separator in the sample loop from a peak-beginning point of the sample component.

Liquid chromatography separation system

An autosampler fora chromatograph includes a sample injector (), an information inputter (), a sequence data creator () that creates operating instruction sequence data based on an input injecting condition and saves each of an initial injection sequence, a repetitive injection sequence and a duplicate of the repetitive injection sequence in each of a first data region, a second data region and a third data region, a controller () that causes the sample injector () to execute a successive injecting operation, a sequence changer () that changes a duplicate of the repetitive injection sequence in the third data region based on a changed injecting condition when the changed injecting condition in regard to a repetitive injecting operation is input through the information inputter (), and a sequence re-writer () that rewrites the repetitive injection sequence in the second data region with the repetitive injection sequence in the third data region when the repetitive injection sequence is executed repeatedly.

Autosampler for chromatograph

An online HPLC dissolution test system includes a dissolution tester and a liquid chromatograph. An autosampler of the liquid chromatograph includes at least one flow vial, a sampling needle and an injection port. the flow vial is connected to the dissolution tester via a pipe and is for storing a sample solution supplied from the dissolution tester therein. The sampling needle is for collecting the sample solution by sucking from the flow vial. The injection port is for injecting the sample solution from the sampling needle into the analysis channel. The controller of the liquid chromatograph includes an immediate analyzing execution part configured to cause the autosampler to execute immediate analyzing operation for sucking the sample solution in the flow vial with the sampling needle and directly injecting the sample solution into the injection port when the sample solution is supplied from the dissolution tester to the flow vial.

Liquid chromatograph and dissolution test system

An online HPLC dissolution test system includes a dissolution tester and a liquid chromatograph. An autosampler of the liquid chromatograph includes at least one flow vial, a sampling needle and an injection port. The flow vial is connected to the dissolution tester via a pipe and is for storing a sample solution supplied from the dissolution tester therein. The sampling needle is for collecting the sample solution by sucking from the flow vial. The injection port is for injecting the sample solution from the sampling needle into the analysis channel. The controller of the liquid chromatograph includes an immediate analyzing execution part configured to cause the autosampler to execute immediate analyzing operation for sucking the sample solution in the flow vial with the sampling needle and directly injecting the sample solution into the injection port when the sample solution is supplied from the dissolution tester to the flow vial.

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Kyoto, Japan

Tomohiro Shagawa