WO2022124187A1 - 自動分析装置の制御方法 - Google Patents

自動分析装置の制御方法 Download PDF

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Publication number
WO2022124187A1
WO2022124187A1 PCT/JP2021/044230 JP2021044230W WO2022124187A1 WO 2022124187 A1 WO2022124187 A1 WO 2022124187A1 JP 2021044230 W JP2021044230 W JP 2021044230W WO 2022124187 A1 WO2022124187 A1 WO 2022124187A1
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Prior art keywords
stream
sample
substitute
analysis
automated analyzer
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Ceased
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PCT/JP2021/044230
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English (en)
French (fr)
Japanese (ja)
Inventor
敏明 片野
和之 杉目
直人 坂本
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Hitachi High Tech Corp
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Hitachi High Tech Corp
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Priority to CN202180077014.1A priority Critical patent/CN116507910A/zh
Priority to US18/039,536 priority patent/US20230417781A1/en
Priority to EP21903291.9A priority patent/EP4261536A4/en
Priority to JP2022568231A priority patent/JP7574321B2/ja
Publication of WO2022124187A1 publication Critical patent/WO2022124187A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/38—Flow patterns
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/88—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/00584—Control arrangements for automatic analysers
    • G01N35/00594—Quality control, including calibration or testing of components of the analyser
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/00584—Control arrangements for automatic analysers
    • G01N35/0092—Scheduling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/00584—Control arrangements for automatic analysers
    • G01N35/0092—Scheduling
    • G01N35/0095—Scheduling introducing urgent samples with priority, e.g. Short Turn Around Time Samples [STATS]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N35/1095—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices for supplying the samples to flow-through analysers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/88—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
    • G01N2030/8804—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86 automated systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/88—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
    • G01N2030/8809—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86 analysis specially adapted for the sample
    • G01N2030/8813—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86 analysis specially adapted for the sample biological materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N2035/00465—Separating and mixing arrangements

Definitions

  • the present invention relates to a control method for an automated analyzer.
  • a sample containing a component to be measured is added to the mobile phase sent to the column for separating the sample, the component of the sample is separated in the stationary phase, and each component separated into different time components is detected.
  • a liquid feeder sends a solvent under high pressure and is injected into an analysis flow path from a sample injection section installed downstream of the liquid feeder.
  • the sample is separated into each component on a separation column packed with a stationary phase.
  • the component is specified by detection using a detector such as an ultraviolet / visible absorbance photometer, a fluorescence photometer, and a mass spectrometer.
  • the detector is appropriately selected according to the purpose of analysis and the sample.
  • the liquid chromatograph mass spectrometer which combines a mass spectrometer and a liquid chromatograph to acquire mass information of the measurement target, introduces each component separated into time components from the measurement sample by the liquid chromatograph into the mass spectrometer and mass information. It is an analyzer to acquire.
  • This liquid chromatograph mass spectrometer is widely used for performing qualitative analysis and quantitative analysis.
  • a liquid chromatograph mass analyzer that automates the pretreatment process for purifying a sample from a human-derived sample such as serum or urine and automatically introduces the sample obtained by the pretreatment into a liquid chromatograph.
  • the number of flow paths (streams) provided with the separation column of the liquid chromatograph is 3 to 5 and the number of sample introduction ports to the detector is one for n analysis items. Therefore, it is important to create an analysis schedule so that not only the sample introduction to the stream but also the sample introduction timing to the detector does not overlap at the timing when the sample is received.
  • Patent Document 1 relates to a technique for creating an analysis schedule of a multi-stream liquid chromatograph mass spectrometer having a plurality of streams.
  • the document states, "Analysis schedules are created in advance so that each stream of multiple liquid chromatograms operates in parallel and the mass spectrometer can collect data at the timing of elution of each component.
  • the control unit creates multiple liquid chromatographs. Gram system The time required to analyze each sample is divided into pre-collection time, during-collection time, and post-collection time, and the time positions during which the collection-time in the liquid chromatogram section do not overlap are searched for and allocated.
  • the analysis schedule is created by determining the start time of the liquid chromatogram unit of the liquid chromatogram, and then the analysis is controlled. Furthermore, the control unit stores a parameter set that changes the component elution time and is suitable for creating the analysis schedule. The analysis parameters are adjusted so that the data collection timing is reached, and the component elution time is changed. ”(See summary).
  • Each stream in the multi-stream liquid chromatograph mass spectrometer consists of at least a liquid feed pump and a separation column.
  • An object of the present invention is to solve the above problems and provide a control method for an automatic analyzer that continues processing even when a stream becomes unavailable in a situation where the liquid chromatograph is equipped with a multi-stream. To do.
  • the sample is prepared by a pretreatment section for purifying the sample by pretreating the sample and a liquid chromatograph having a plurality of streams.
  • It is a control method of an automatic analyzer including a separation unit for separating and a detection unit for detecting a separated sample, and controlling the processing time of the sample in the separation unit and the detection unit based on an analysis schedule. If an abnormality in the stream is detected after the analysis schedule is set, the sample is searched for the existence of a substitute stream, and if the substitute stream exists, the sample scheduled to be introduced into the stream in which the abnormality is detected is selected.
  • the analysis schedule should be modified so that the sample is introduced into the substitute stream and the processing timing of the sample that has passed through the substitute stream and the sample that has passed through another normal stream do not overlap in the detection unit. It is a feature.
  • Conceptual diagram of analysis scheduling of a sample using one stream. A time chart of three analysis items, each using a different stream.
  • the flowchart which shows the rescheduling which concerns on embodiment.
  • Analysis time chart after rescheduling according to the embodiment. The figure which shows the stream setting table.
  • a liquid chromatograph HPLC
  • GC gas chromatograph
  • a liquid chromatograph mass spectrometer using a mass spectrometer as a detector of the liquid chromatograph is described, but a detector other than the mass spectrometer, for example, a visible / ultraviolet absorbance detector, or The present invention can also be applied to a photodiode array detector, a fluorescence detector, and the like.
  • FIG. 1 is a conceptual diagram of a multi-stream liquid chromatograph mass spectrometer according to an embodiment
  • FIG. 2 is a conceptual diagram of analysis scheduling of a sample using one stream.
  • FIG. 3 shows an outline of a time chart of each analysis of different analysis items A to C using different streams in consideration of FIG.
  • the multi-stream liquid chromatograph mass analyzer preprocesses a sample to purify the sample, a pretreatment system 102, a stream 103, a stream 107, a stream 111, a stream 103, and a stream 107.
  • Liquid chromatograph switching valve 115 for dispensing the sample obtained by the pretreatment system 102 to the stream 111, detector flow path switching valve 116, detector 117, pretreatment system 102, liquid chromatograph switching. It includes a valve 115 and a control unit 101 that controls a stream 103, a stream 107, a stream 111, a detector flow path switching valve 116, and a detector 117.
  • the stream 103 includes a liquid supply device (Pump, pump (delivery device)) 104 that sends a high-pressure liquid to the analysis flow path as a mobile phase solvent, and an injection valve that is connected to the liquid supply device 104 and introduces a sample into the analysis flow path. It has a 105 and a separation column (Column) 106 which is connected downstream of the injection valve 105, is supplied with a sample from the injection valve 105 via an analysis flow path, and separates the supplied sample into each component.
  • a liquid supply device Pulp, pump (delivery device)
  • an injection valve that is connected to the liquid supply device 104 and introduces a sample into the analysis flow path. It has a 105 and a separation column (Column) 106 which is connected downstream of the injection valve 105, is supplied with a sample from the injection valve 105 via an analysis flow path, and separates the supplied sample into each component.
  • the stream 107 has the same configuration as the stream 103, and is connected to a liquid feeding device (Pump, pump) 108 for high-pressure feeding a solvent as a mobile phase and a liquid feeding device 108 to analyze a sample. It has an injection valve 109 to be introduced into the path and a separation column (Colum) 110 connected downstream of the injection valve 109 to separate the sample into each component.
  • a liquid feeding device Pulp, pump
  • Colum separation column
  • the stream 111 also has the same configuration as the stream 103, and is connected to a liquid feeding device (Pump, pump) 112 for high-pressure feeding a solvent as a mobile phase and a liquid feeding device 112 to analyze a sample. It has an injection valve 113 to be introduced into the path and a separation column (Column) 114 connected downstream of the injection valve 113 to separate the sample into each component.
  • a liquid feeding device Pulp, pump
  • the separation column 106 of the stream 103, the separation column 110 of the stream 107, and the separation column 114 of the stream 111 are connected in parallel to one detector (mass spectrometer) 117 via the detector flow path switching valve 116.
  • the pretreatment system 102 performs pretreatment of the sample, and then dispenses the sample to the injection valves 105, 109, 113 connected to the analysis flow path of the streams 103, 107, 111 via the liquid chromatograph switching valve 115.
  • the sample is introduced into the detector 117 by the detector flow path switching valve 116.
  • liquid chromatograph switching valve 115 may be provided with a nozzle so that a sample can be introduced into each stream instead of a plurality of valves or valves.
  • FIG. 1 shows one detector flow path switching valve 116
  • the number of detector flow path switching valves 116 may be plural.
  • a device equipped with streams 103, 107 and 111 is a multi-stream liquid chromatograph.
  • the cycle 201 is the minimum unit of the analysis schedule created by the control unit 101.
  • the control unit 101 cycles through the pretreatment process based on the nature of the item to be analyzed, the preparation of the mobile phase required for introduction to the separation unit and introduction, and the introduction of the separated sample into the detector. Create an analysis schedule for each unit and so that the timing of introduction to the detector does not overlap among multiple samples.
  • the liquid feeding device 104 for high-pressure feeding the solvent as the mobile phase prior to introducing the sample into the separation column 106 and the stream 107 are used.
  • the timing of introduction into the liquid chromatograph switching valve 115 in consideration of the operation timing of the liquid feeder 108 that sends the solvent as the mobile phase at high pressure, and the detector for those samples.
  • the control unit 101 must schedule so that the timings of introduction to the flow path switching valve 116 and the detector 117 do not overlap.
  • the scheduling timing 313 indicates the preparation timing of the analysis schedule
  • the preparation cycles 314, 315, 316 indicate the preparation time for pre-dispensing the sample into the container required for pretreatment.
  • Pretreatment cycles 301, 305, 309 indicate sample pretreatment in the pretreatment system 102
  • sample introduction cycles 302, 306, 310 indicate sample introduction into the liquid chromatograph switching valve 115 and injection valves 105, 109, 113. ..
  • the separation cycles 303, 307, 311 indicate the separation of the sample in the separation columns 106, 110, 114 and the introduction of the detector in the detector switching valve 115.
  • the detection cycles 304, 308, 312 indicate the detection timing in the detector 117.
  • the control unit 101 recognizes the samples to be analyzed at the scheduling timing 313 based on the figure, processes a series of the pretreatment cycle 301, the sample introduction cycle 302, the separation cycle 303, and the detection cycle 304 among the samples, and also processes the samples. Moreover, an analysis schedule is created so that the detection cycles 304, 308, 312 in the detector 117 do not overlap between the respective samples, and the subsequent analysis operation is performed.
  • FIG. 4 is a flowchart when rescheduling occurs.
  • FIG. 5 shows an analysis time chart after rescheduling.
  • the present invention is applicable to a multi-stream liquid chromatograph mass spectrometer having two or more streams.
  • control unit 101 creates an analysis schedule for Item A, Item B, and Item C. Here, it is assumed that the same item can be measured in each of the separation columns of Item A and Item B.
  • the pretreatment cycles 301, 305, 309 are performed in parallel.
  • the control unit 101 acquires the stream status for each cycle after the analysis scheduling is created and the preprocessing cycle is started (step S1).
  • step S2 it is checked whether the stream 103 is available, and if it is available, the process is continued.
  • step S3 When an abnormality in the stream 103 is detected in step S2, it is checked whether or not an alternative stream exists (step S3). If there is no alternative stream, the sample will not be processed.
  • step S3 If there is an alternative stream 107 in step S3, rescheduling is performed for Item A to use the stream 107 (step S4).
  • control unit 101 In response to the occurrence of rescheduling for Item A, the control unit 101 checks whether or not there is a sample scheduled to use the stream 107 at the time of scheduling timing 313 (step S5).
  • the rescheduling of Item A will cause a conflict in the processing timing of stream 107 as scheduled at the start of analysis, so stream 107 is planned to be used. Also for Item B, rescheduling is performed so that the sample introduction timing to the stream 107 and the sample introduction timing to the detector flow path switching valve 116 and the detector 117 do not overlap.
  • the sample is introduced into the rescheduled Test A stream, and then the sample is introduced into Test B in sequence.
  • a standby cycle will occur for the Test B sample whose timing from the completion of preprocessing to the introduction of the stream has been changed due to rescheduling.
  • an empty position in the preprocessing system 102 may be used, or a position dedicated to standby may be provided in the preprocessing system 102.
  • Item A is designated as Item A', which is the pre-scheduling pre-processing cycle 502, the post-rescheduling sample introduction cycle 503, the re-scheduling post-separation cycle 504, and the post-rescheduling detection cycle.
  • Item B becomes Item B', undergoes rescheduling pre-processing cycle 506, rescheduling post-wait cycle 513, then rescheduled sample introduction cycle 508, rescheduling post-separation cycle 509, and rescheduling post-detection cycle 510.
  • the scheduling that the introduction timing to the detector 117 does not overlap is performed between Test A'and Test B'that use the same stream and Test C that uses another stream.
  • clinical analyzers include general sample measurement, which processes samples in the order in which they are received, and emergency sample measurement, which preferentially processes samples.
  • the processing for the general sample is temporarily suspended, the measurement of the emergency sample is performed, and then the measurement of the general sample is continued again.
  • the priority of the sample being measured is acquired at the timing of rescheduling, and the sample with high priority is obtained. Rescheduling the sample, if any, to preferentially process it will lead to rapid reporting of measurement results.
  • the stream of the liquid chromatograph depends on the combination of the column type and analysis items such as the filler and the material and length of the column body, or the composition of the eluent used as the mobile phase and the combination of the analysis items.
  • the stream substitution criteria can be determined based on the combination of analysis items and columns, and analysis items and eluents.
  • the stream substitution may be defined in advance as a table in the device, or the user may arbitrarily set it on the operation screen.
  • Figure 6 shows an example of the stream definition table.
  • Test A of analysis item 601 is defined as stream 1 in the initial stream 604 by the eluent 602, column 603.
  • Test B of the analysis item 601 is defined as stream 2 in the initial stream 604 by the combination of the eluent 602 and the column 603, but the substitute stream 605 is streamed by the combination of the analysis item 601 and the eluent 602 and the column 603. 1 is also defined, and Test A of analysis item 601 is also defined as a substitute stream as stream 2, and both Test A and Test B are defined as substitute streams.
  • Test C, Test D, and Test E of the analysis item 601 have different initial streams 604 due to inconsistent combinations with the eluent 602 and the column 603, and there is no substitute stream 605.
  • Figure 7 shows an example of the stream definition screen.
  • the analysis item switching button 701, the eluent switching button 702, the column switching button 703, the initial stream switching button 704, and the substitute stream switching button 705 can be operated by the user, and the initial stream can be selected and input by selecting and inputting each item. It is possible to set a substitute stream. Since the substitute stream can be switched, even if the condition is satisfied, it can be set not to be a substitute.
  • the contents set on this screen are saved in the system by pressing the setting save button 706, and are discarded by pressing the cancel button 707 when no setting is made.
  • a pretreatment unit for purifying the sample by pretreating the sample a delivery device for sending the mobile phase to the analysis flow path, and a delivery device connected to the delivery device are connected to the pretreatment unit.
  • a multi-chromatography apparatus including a plurality of liquid chromatographs having an injection valve for introducing the sample obtained in the above into the analysis flow path and a separation column connected downstream of the injection valve to separate the sample into each component. And, separated by at least one sample dispensing mechanism for dispensing the sample to the injection valve of the multi-chromatography, a detector for analyzing the sample, and the separation column of any of the plurality of chromatograph devices.
  • Control to control the operation of the flow path switching valve for introducing the sample to the detector via the analysis flow path, the multichromatography, the sample dispensing mechanism, the flow path switching valve, and the detection unit.
  • the control unit is provided with a unit, and the control unit does not overlap the timing of sample introduction into the separation column of each of the plurality of chromatographs and sample introduction into the detector at the start of sample processing in the pretreatment unit. It is a control method of an automatic analyzer that creates an analysis schedule, and if an abnormality in any of the streams is detected after the analysis schedule is created at the time of sample reception, it is possible to search for a substitute stream and substitute it.
  • the sample that was planned to be introduced into the stream that detected the abnormality should be introduced into the substitute stream, and the sample that has passed through the substitute stream and the sample that has passed through other normal streams.
  • the analysis schedule is modified so that the processing timings in the detection unit do not overlap.
  • the analysis schedule can be reset to use the substitute stream. It is possible to avoid losses and delays in reporting time.
  • the present invention is not limited to the above-described embodiment, and includes various modifications.
  • the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations.
  • 101 Control unit, 102: Pretreatment system, 103, 107, 111: Liquid chromatograph, 104, 108, 112: Liquid feeder, 105, 109, 113: Injection valve, 106, 110, 114: Separation column, 115 : Liquid chromatograph switching valve, 116: Detector flow switching valve, 117: Detector, 201: Cycle, 301, 305, 309: Pretreatment cycle, 302, 306, 310: Sample introduction cycle, 303, 307, 311 : Separation cycle, 304,308, 312: Detection cycle, 313: Scheduling timing, 314, 315,316: Preparation cycle, 501: Rescheduling timing, 502,506: Rescheduling post-processing cycle, 503, 508: Rescheduling Post-sample introduction cycle, 513: Wait cycle after rescheduling, 504: 509: Separation cycle after rescheduling, 505, 510: Detect

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  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
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PCT/JP2021/044230 2020-12-11 2021-12-02 自動分析装置の制御方法 Ceased WO2022124187A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN202180077014.1A CN116507910A (zh) 2020-12-11 2021-12-02 自动分析装置的控制方法
US18/039,536 US20230417781A1 (en) 2020-12-11 2021-12-02 Method of controlling automatic analyzer
EP21903291.9A EP4261536A4 (en) 2020-12-11 2021-12-02 METHOD FOR CONTROLLING AUTOMATED ANALYSIS DEVICE
JP2022568231A JP7574321B2 (ja) 2020-12-11 2021-12-02 自動分析装置の制御方法

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JP2020205571 2020-12-11

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WO2025009341A1 (ja) * 2023-07-04 2025-01-09 株式会社日立ハイテク 液体クロマトグラフ装置、及び、その制御方法

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