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1. 发明申请

US20230049510A1 GAS CHROMATOGRAPH 有权
公开(公告)号：US20230049510A1
公开(公告)日：2023-02-16
申请号：US17791849
申请日：2020-02-28
申请人： SHIMADZU CORPORATION
发明人： Masashi YAMANE , Kiyonori KOGA
IPC分类号： G01N30/26 , G01N30/24 , G01N30/32
摘要： A gas chromatograph is provided with: a sample gas generator (2) configured to generate a sample gas from an injected sample; a separation column (6) fluidly connected to an outlet of the sample gas generator, the separation column (6) being configured to separate components in the sample gas generated by the sample gas generator (2); a detector (8) fluidly connected to an outlet of the separation column (6), the detector (8) being configured to detect the components separated in the separation column (6); a plurality of gas supply sources (12A, 12B) each configured to supply a carrier gas for carrying the sample gas generated by the sample gas generator to the separation column (6); a switching unit (12A, 12B) fluidly connected to the plurality of gas supply sources, the switching unit being configured to switch such that one of the plurality of gas supply sources is fluidly connected to the sample gas generator (2); a regulator (16) interposed between the switching unit (14) and the sample gas generator (2), the regulator (16) being configured to regulate a gas supply pressure from the gas supply source (12A, 12B) and a gas supply flow rate to the sample gas generator (2); and a control unit (30) configured to control an operation of the regulator (16), wherein the control unit (30) is configured such that in a case where the gas supply source fluidly connected to the sample gas generation unit has been changed in order to shift to a standby state capable of performing subsequent sample analysis and that at least a gas type of the carrier gas supplied to the supply gas generation unit (2) has been changed, the control unit (30) performs a replacement promotion operation for putting the gas supply pressure, the gas supply flow rate, or a combination thereof to a state different from the standby state to promote a gas replacement in the flow path for the carrier gas.

2. 发明申请

US20220373523A1 Chromatographic Data System Processing Apparatus 有权
公开(公告)号：US20220373523A1
公开(公告)日：2022-11-24
申请号：US17878619
申请日：2022-08-01
申请人： Hitachi High-Tech Science Corporation
发明人： Masahito Ito , Katsutoshi Shimizu
IPC分类号： G01N30/86 , G01N30/24 , G01N30/74
摘要： 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.

3. 发明授权

US11366133B2 Sample plate and auto-sampler 有权
公开(公告)号：US11366133B2
公开(公告)日：2022-06-21
申请号：US16649099
申请日：2018-06-20
申请人： Shimadzu Corporation
发明人： Hiroyuki Minato , Takashi Inoue
IPC分类号： G01N35/10 , B01L3/00 , G01N30/24 , G01N35/02
摘要： The sample plate has a principal plane in which a plurality of wells is arranged. The sample plate has a plurality of through-holes each allowing a sampling needle to pass through in a region of the principal plane where the wells are not provided, and positions of the wells and positions of the through-holes are designed such that when two pieces of the sample plates are arranged up and down with a predetermined positional relationship in a state in which respective principal planes are arranged in parallel each other, the through-holes of the sample plate arranged on an upper side is arranged at positions directly above respective wells of the sample plate arranged on a lower side.

4. 发明申请

US20220146467A1 ANALYTICAL INSTRUMENT AND ANALYSIS SYSTEM 有权
公开(公告)号：US20220146467A1
公开(公告)日：2022-05-12
申请号：US17476651
申请日：2021-09-16
申请人： SHIMADZU CORPORATION
发明人： Masayuki Okada , Masahiro Kojima
IPC分类号： G01N30/24
摘要： To make a cable connected to an analytical instrument less likely to cause interference. An analytical instrument (2) includes an executing part (18) configured to execute an operation related to an analysis, and an electrical circuit (20) electrically connected to the executing part (18). The analytical instrument (2) constitutes an analysis system (1) together with an analysis device (100). A plurality of connection ports (10; 12) configured to receive a cable (200; 300) coming from outside of the analytical instrument (1) are provided at different positions in a manner that directions for receiving the cable (200; 300) are different from each other. The analytical instrument (1) is configured to connect electrically the electrical circuit (20) with the cable (200; 300) connected to a connection port which is optionally selected among the plurality of connection ports (10; 12).

5. 发明授权

US11320410B2 Chromatographic mass analysis device and control method 有权
公开(公告)号：US11320410B2
公开(公告)日：2022-05-03
申请号：US16304945
申请日：2016-06-16
申请人： Hitachi High-Technologies Corporation
发明人： Akira Maekawa
IPC分类号： G01N30/72 , G01N27/62 , G01N30/02 , G01N30/24 , G01N30/86 , G01N30/46
摘要： In the present invention, an analysis schedule is pre-created such that streams of a plurality of liquid chromatograms can operate in parallel and a mass spectrometer can collect data at the timing of each component elution. A control unit controls so as to: divide the time required to analyze each sample in a plurality of liquid chromatogram systems into pre-collection time, time during collection, and post-collection time; search and allocate time positions in which the time during collection in the liquid chromatogram units do not overlap; determine start times for the plurality of liquid chromatogram units to thereby create an analysis schedule; and thereafter perform analysis. The control unit further stores parameter sets for varying component elution times, adjusts analysis parameters so as to make data collection timings appropriate for creating an analysis schedule, and changes the component elution times.

6. 发明申请

US20220128521A1 AUTOSAMPLER FOR CHROMATOGRAPH 有权
公开(公告)号：US20220128521A1
公开(公告)日：2022-04-28
申请号：US17436918
申请日：2019-03-13
申请人： SHIMADZU CORPORATION
发明人： Takaaki FUJITA
IPC分类号： G01N30/24 , G01N30/46 , G01N30/20 , G01N30/88
摘要： 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.

7. 发明授权

US11243191B2 Liquid chromatograph and dissolution test system 有权
公开(公告)号：US11243191B2
公开(公告)日：2022-02-08
申请号：US16631508
申请日：2017-08-25
申请人： SHIMADZU CORPORATION
发明人： Taichi Tomono , Takayuki Iriki , Tomohiro Shagawa , Satoru Watanabe
IPC分类号： G01N30/24 , G01N35/10 , G01N30/02 , G01N35/00
摘要： 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.

8. 发明申请

US20220026401A1 AUTO-SAMPLER FOR CHROMATOGRAPHS 有权
公开(公告)号：US20220026401A1
公开(公告)日：2022-01-27
申请号：US17295985
申请日：2018-12-12
申请人： SHIMADZU CORPORATION
发明人： Shotaro ANDO , Takashi INOUE , Kenichi YASUNAGA
IPC分类号： G01N30/24
摘要： The auto-sampler for chromatographs includes a needle for sampling configured to move while a tip end thereof faces vertically downward; a switching valve having a plurality of ports to which channels constituting a chromatograph are connected, the switching valve switching between port connecting conditions to switch between channel configurations; and an injection port including an opening at an upper surface thereof through which a tip end of the needle is inserted to make the needle fluidically communicate with a pipe connected to one port of the switching valve, and a needle seal configured to get into contact with an outer circumferential surface of the tip end portion to make the needle fluidically communicate with the pipe in a liquid-tight manner when the tip end of the needle is inserted through the opening.

9. 发明申请

US20210389283A1 AUTOSAMPLER 有权
公开(公告)号：US20210389283A1
公开(公告)日：2021-12-16
申请号：US17285532
申请日：2018-10-23
申请人： SHIMADZU CORPORATION
发明人： Shotaro ANDO , Takashi INOUE
IPC分类号： G01N30/24 , G01N35/10
摘要： An autosampler includes an injection port for supplying a sample to an analysis device, a needle that collects the sample stored in a vial and injects the sample into the injection port, a cleaning unit that cleans the needle and a gas exhaust fan. The cleaning unit includes a cleaning container which stores a cleaning liquid and into which the needle is inserted, and a unit main body that has a space for storing the cleaning container and receiving the cleaning liquid overflowing from the cleaning container, and a unit gas exhaust passage for exhausting gas in the space outwardly of the cleaning unit. The unit main body has a unit opening through which the needle passes when accessing the cleaning container. The autosampler includes a boundary portion that separates a first region in which the injection port, the needle and the unit opening are arranged from a second region in which the gas exhaust fan is arranged, and a gas exhaust region which is connected to the unit gas exhaust passage via a gas exhaust opening provided at the boundary portion and into which gas exhausted from the space flows due to a negative pressure generated by the gas exhaust fan.

10. 发明授权

US11143668B2 Sampler device 有权
公开(公告)号：US11143668B2
公开(公告)日：2021-10-12
申请号：US16490987
申请日：2018-03-06
申请人： DANI ANALITICA S.R.L.
发明人： Massimiliano Saini Fasanotti , Roberto Taschini , Michela Barbara Gasperini
IPC分类号： G01N35/10 , G01N30/24 , G01N35/02 , G01N1/24 , G01N30/02
摘要： A sampler device for gas chromatography includes a first unit that supports and moves a second, single instrument holding unit carrying at least two instruments with respective control plungers for taking/inserting samples to be analyzed, and a third unit that actuates the plungers simultaneously. The first unit is mounted on a base and moves the second and third units along horizontal and vertical directions and between a first and a second station, at least one of which is defined beyond the plan encumbrance of the base. A control unit automatically controls the movement of the first unit between the first station, with the third unit controlled by the control unit to simultaneously take the samples to be analyzed by the two instruments, and the second station, with the third unit controlled by the control unit to simultaneously insert the previously taken samples within two distinct injectors of a gas chromatograph.

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