Hitachi-high-technologies Corporation

Hitachi, Ltd.

Hitachi High-tech Science Corporation

Other

Toyobo Co., Ltd.

Hitachi-science Systems, Ltd.

Hitachi Instruments Engineering Co., Ltd.

Masahito Ito

Kisaburo Deguchi

Hironori Kaji

Yoshio Fujii

Kunihiko Takao

Junkichi Miura

Hiroyuki Noda

Shoji Tomida

Shintaro Kubo

Hiroshi Satake

Yoshiaki Seki

Masato Fukuda

Kenji Hiraku

Yoshihiro Nagaoka

Kasumi Yoshida

Kimiyoshi Koda

Shinya Ito

Takaaki Suzuki

Hiroaki Nakagawa

Kiyotoshi Mori

Shinichiro Nishimura

Osamu Watabe

Kimihiko Ishii

Katsutoshi Shimizu

Mitsuo Ito

Toshimichi Aota

Takefumi Yokokura

Genzou Hirata

Chihiro Yoshioka

Shinichi Ozawa

Koji Yamamoto

Shigeru Matsui

Kenji Yasuda

Yasuhiko Sasaki

Isao Hayase

Masao Kamahori

Tomohiro Shoji

Satoshi Mitsuyama

Tomonari Morioka

Daizo Tokinaga

Susumu Nishiguchi

Kuriko Yamada

Hiroyuki Wada

Atsushi Toda

Masanori Takaki

Kosaku Toyosaki

Kenichiro Takahashi

Genzo Hirata

Fuzio Yamada

Yusuke Hosen

Norimasa Minamoto

Hiroyuki Tanai

Tomoki Oohashi

Ikuko Narimatsu

Kazuhiko Okuzawa

Hirofumi Toshima

Minling Pei

Kouichi Tagami

Fuminori Umesato

Fuminori Umesato, Deceased

Toshihiko Sakaide

Peter Grosshans

Yoshimi Kasai

Atsuki Morisaki

To enable appropriate analysis to easily be performed in accordance with an object to be analyzed, provided is an apparatus for determining a chromatograph analysis method includes: an input portion () configured to receive input of a sample name of a sample to be analyzed and a component name; a storage () configured to store an analysis method for a component corresponding to the component name in the sample corresponding to the sample name so that the analysis method is associated with the sample name and the component name; and a controller () configured to search the storage for the analysis method, which corresponds to the sample name and the component name input to the input portion, to read the analysis method from the storage, and present the analysis method to a user.

Chromatograph and apparatus for determining chromatograph analysis method

In order to obtain analysis conditions, there is provided a liquid chromatography data processing device which generates, based on data regarding analysis conditions of a chromatography device and data on separation performance, display data that displays a graph showing correspondence of data regarding analysis conditions of the chromatography device and separation performance, generating a first group of biaxial data regarding the above analysis conditions, second group of biaxial data obtained by calculation comprising multiplication and/or division of two data of the first group of biaxial data, and display data according to a graph showing correspondence of the data regarding separation performance, wherein at least each axis of the first group of biaxial data and the second group of biaxial data is represented as a logarithmic axis.

Liquid chromatography data processing device, and liquid chromatography device

A thermostatic apparatus thermostatically holds a sample container holding a sample. The thermostatic apparatus includes a sample rack which accommodates and holds a plurality of the sample containers and is attachable to and detachable from the thermostatic apparatus; and a heat conduction member which is controlled to a constant temperature and transfers heat to the sample container, in which an opening portion is formed in the sample rack, and when the sample rack is mounted on the thermostatic apparatus, a contact portion forming one part of the heat conduction member directly contacts the sample container by passing through the opening portion, or directly contacts the sample container protruding from the opening portion.

Thermostatic apparatus and analytical apparatus including the same

To reduce an arithmetic processing load or an influence of noise at the time of virtual curve calculation processing, provided is a data processing device for a chromatograph, which is configured to execute data processing based on plot data measured by using a chromatograph, the data processing device including a virtual curve calculation data generator configured to obtain a smaller number of pieces of virtual curve calculation data than a number of pieces of the measured plot data; and an arithmetic processor () functioning as a virtual curve calculator configured to obtain a virtual curve based on the virtual curve calculation data.

Data processing device for chromatograph, data processing method, and chromatograph

To make it easy to address the case in which a chromatograph does not appropriately operate. A chromatograph (liquid chromatograph) for analyzing a sample by supplying an eluent and the sample and separating a component contained in the sample to detect the component, the chromatograph including: a detection portion (controller) configured to detect a fault in the analysis; and an operation controller (controller) configured to cause a constituent element related to the analysis to perform at least one of an operation for identifying a factor of the fault and an operation for avoiding the fault.

Chromatograph having operation controller that causes automatic purging in a case of detection failure

A chromatographic data system processing apparatus includes a standard sample time table for prestoring a first retention time and a first allowable width of each peak of specific components of a standard sample, a determination unit for determining whether a number of peaks coincides with a specified number when a peak cannot be identified, an alteration unit for altering the standard sample time table by increasing the first allowable width of a specific component to an altered allowable width, an identification unit for identifying the peaks based on the altered standard sample time table when all peaks fall within a range of the altered allowable width, and a setting unit for acquiring an actually-measured retention time of the peaks, and setting a measurement sample time table based on the actually-measured retention time and a second allowable width when the peaks are identified based on the altered standard sample time table.

Chromatographic data system processing apparatus

A chromatographic data system processing apparatus includes a liquid feeder, a sample injector, a column that separates samples, a detector, a controller that processes a detected result of the detector, and a data processor that examines and sets operations of the liquid feeder, the column and the detector, and a measurement condition. The data processor generates a three-dimensional graph having three axes related to a pressure, a time, and a number of theoretical plates based on data or variables indicating a relationship between the number of theoretical plates and a flow rate, and data or variables indicating a relationship between the pressure and the flow rate. The chromatographic data system processing apparatus can easily obtain a separation condition for obtaining performance from a three-dimensional graph including a pressure drop, a hold-up time and a number of theoretical plates.

A chromatographic data system processing apparatus performs data processing based on plot data measured by a chromatograph. The chromatographic data system processing apparatus includes a virtual curve calculation portion which obtains a virtual curve based on the measured plot data, a tentative feature point acquisition portion which obtains a tentative feature point based on the obtained virtual curve, and an actual plot data feature point extraction portion which extracts an actual plot data feature point corresponding to the tentative feature point from the measured plot data.

Chromatographic data system, processing apparatus, chromatographic data system processing method, and chromatograph

In the present invention, differences in liquid feed properties between liquid chromatographic devices are determined, a liquid feed time table that takes these differences into account is acquired by way of system changes, and flow control is performed by a pump. Furthermore, the liquid feed time table after the system changes is divided into a plurality of intervals, and instructions are sent to the pump after approximate calculations are performed. Thus, by efficiently performing system change processes, the same measurement results can be obtained in a plurality of different liquid chromatograph devices, regardless of the differences in liquid feed properties.

Method of transmitting control data for system conversion among liquid chromatographs

A liquid chromatograph includes a liquid chromatograph unit that has a pump sending an eluent to a detector and a control unit that controls the liquid to be sent by the pump based on a predetermined time table. The control unit stores an elution response of the liquid chromatograph unit which is obtained when a predetermined command value is input and another elution response which is obtained when the same command value is input to another liquid chromatograph. The time table is converted in the control unit based on the elution response and the other elution response to obtain respective elution profiles. In this manner, even when a measuring method related to another liquid chromatograph is used, it is possible to provide a liquid chromatograph capable of obtaining measurement results which are the same as those obtained when the measuring method is used in the other liquid chromatograph.

Liquid chromatograph

In a liquid chromatograph, the disulfide adsorption of iron atoms in a filter for a column is avoided and thus peak tailing in a chromatogram is prevented to thereby prevent a lowering in the sample recovery rate. A liquid chromatograph column comprising a hollow tubular column body, a bead-shaped packing material which is packed in the hollow part of the column body, a filter provided with a mesh which has a mesh size smaller than the particle diameter of the packing material, and a cap which presses the filter against the packing material to thereby enclose the packing material within the column body, characterized in that the main component of the filter is nickel or hastelloy.

Liquid chromatograph, liquid chromatograph column and filter for liquid chromatograph column

A chromatograph analyzing device for automatically executing a base line setting process on an unseparated peak using preset base line conditions. The chromatograph analyzing device includes a separation unit for separating a component included in a sample, and a data processing device for identifying the component of the sample and the quantity of the component in the sample by using a chromatogram obtained from the separation.

Chromatograph analyzing device

Column oven for liquid chromatograph analyzer

Organizer for liquid chromatograph analyzer

Detector for liquid chromatograph analyzer

Growing community of inventors

Hitachinaka, Japan

Masahito Ito