WO2022131091A1 - 液体クロマトグラフのオートサンプラ、およびこれを備えた液体クロマトグラフ - Google Patents
液体クロマトグラフのオートサンプラ、およびこれを備えた液体クロマトグラフ Download PDFInfo
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- WO2022131091A1 WO2022131091A1 PCT/JP2021/045055 JP2021045055W WO2022131091A1 WO 2022131091 A1 WO2022131091 A1 WO 2022131091A1 JP 2021045055 W JP2021045055 W JP 2021045055W WO 2022131091 A1 WO2022131091 A1 WO 2022131091A1
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- Prior art keywords
- sample
- autosampler
- point
- suction
- liquid chromatograph
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- 239000007788 liquid Substances 0.000 title claims abstract description 51
- 238000012546 transfer Methods 0.000 claims abstract description 51
- 238000005406 washing Methods 0.000 claims description 11
- 238000007781 pre-processing Methods 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 39
- 239000002699 waste material Substances 0.000 description 25
- 238000005259 measurement Methods 0.000 description 12
- 238000004140 cleaning Methods 0.000 description 11
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 238000005070 sampling Methods 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 239000012459 cleaning agent Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- 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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/24—Automatic injection systems
-
- 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
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
-
- 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
- G01N2030/022—Column chromatography characterised by the kind of separation mechanism
- G01N2030/027—Liquid chromatography
-
- 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
-
- 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
- G01N30/86—Signal analysis
-
- 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
Definitions
- the present invention relates to an autosampler for a liquid chromatograph and a liquid chromatograph equipped with the autosampler.
- An autosampler for a general liquid chromatograph sucks a sample received from a pretreatment unit (device or person) with a suction nozzle, injects it into the injection port of an injection valve, and a flow path including a column. Introduce to the system. After sample introduction, the needle, injection valve, injection port and flow path piping are thoroughly cleaned to reduce carryover.
- Patent Document 1 describes an autosampler for a liquid chromatograph, "The automatic sampling and reaction system has a microreactor that communicates fluidly with an external sampling valve.
- the external sampling valve is a start valve. It can be configured to draw a sample from the reactor or reactor stream.
- the microreactor is connected to the reagent valve and the infusion valve.
- the reagent valve is from the reagent reservoir.
- the starting valve can be configured to withdraw the fluid and drain it into the microreactor to react with the sample.
- the starting valve draws the cleaning agent from the cleaning agent reservoir and microreacts from the external sampling valve. It can be configured to drain the cleaning agent to an external sampling valve to move the sample to the reactor.
- the infusion valve is in fluid communication with the column or detector and is in the solvent composition stream. Discharge the secondary sample in. "(See summary).
- Patent Document 1 has not examined how to deal with such a case.
- An object of the present invention is to provide an autosampler for a liquid chromatograph that can manage a sample container even when the throughput of the pretreatment unit exceeds the throughput of the autosampler.
- the present application includes a plurality of means for solving the above problems, and one example thereof is an auto sampler for a liquid chromatograph, which is connected to a plurality of injection valves and the injection ports of the plurality of injection valves.
- the sample suction nozzle is provided with a sample suction nozzle, and the sample suction nozzle is a sample transfer means for sucking a sample from a sample container installed at each sample suction point and transferring the sample container to each sample suction point.
- the auto sampler is provided with a retreat portion capable of holding the sample container charged into the auto sampler and the sample container collected from the sample suction point.
- an autosampler for a liquid chromatograph that can manage a sample container even when the throughput of the pretreatment unit exceeds the throughput of the autosampler.
- FIG. 1 Top view of the autosampler of the liquid chromatograph according to the embodiment.
- the schematic diagram which shows the drive range of a sample suction mechanism and a washing tank.
- the figure which shows the sample supply pattern when there are two sample suction points.
- Time chart of the situation of (1) of FIG. Time chart of the situation of (3) of FIG.
- the time chart of the situation of (6) of FIG. A time chart when only one sample container can be discarded in one cycle in the situation of (6) in FIG.
- FIG. 1 is a schematic view of the autosampler 101 of the liquid chromatograph according to the embodiment.
- the autosampler 101 includes a sample container 102, a transfer mechanism 103, a sample transfer point 104, a sample transfer means 105, a sample suction mechanism 106, a sample suction nozzle 107, a washing tank 108, a sample suction point 109, a waste liquid suction mechanism 110, and a waste liquid suction point. 111, including the evacuation point 112.
- the sample container 102 is a container for holding a measurement object represented by a single sample or a mixture of a sample and a reagent.
- the transfer mechanism 103 is a mechanism for introducing the sample container 102 from the pretreatment section into the autosampler 101.
- the sample transfer point 104 is a position for holding the sample container 102, and is a place for placing the sample container 102 when it is introduced into the autosampler 101 from the pretreatment unit.
- the sample transfer point 104 is installed in the transfer mechanism 103. Therefore, the sample container 102 containing the pretreated sample can be introduced into the autosampler 101 by installing the sample container 102 at the sample transfer point 104 and introducing the transfer mechanism 103 into the autosampler 101.
- the transfer mechanism 103 and the sample transfer location 104 do not necessarily have to be configured as described above.
- the sample container 102 may be installed at the sample transfer point 104 installed in the autosampler 101 by using a human hand as the transfer mechanism 103.
- the sample transfer means 105 is a mechanism for transferring the sample container 102 to another place.
- a mechanism for gripping the sample container 102 is used, but a mechanism for pushing out or pulling in the sample container 102 with an arm, a hook, or the like, or a non-contact sample transfer means using electromagnetic force or the like may be used.
- the sample suction mechanism 106 is a mechanism that sucks the sample in the sample container 102 using the sample suction nozzle 107 and sends it to an analysis unit such as a column or a photometer.
- the cleaning tank 108 is a mechanism for cleaning the outer wall of the sample suction nozzle 107 before or in contact with the sample, and is used to make the internal state of the sample suction nozzle 107 the same for each measurement or the sample suction nozzle 107. It also has a function of discharging the waste liquid that has passed through the sample suction nozzle 107 for cleaning the inside. This mechanism will be described in detail with reference to FIG.
- the sample suction point 109 is a position for holding the sample container 102 and sucking the sample by the sample suction mechanism 106.
- the waste liquid suction mechanism 110 is a mechanism for sucking and discarding the sample in the sample container.
- the waste liquid suction point 111 is a position for holding the sample container 102 and sucking the sample by the waste liquid suction mechanism 110.
- the evacuation point 112 is a position for holding the sample container 102 and receiving the sample container 102 that has no place to store because the sample in one sample container 102 is sucked by a plurality of sample suction mechanisms 106. Further, when the autosampler 101 cannot confirm whether or not the sample transfer means 105 holds the sample container 102 because the autosampler 101 stops due to an error, the sample container 102 is installed at the evacuation site 112 to cause the loss of the sample. Can be prevented.
- FIG. 2 is a schematic view focusing on the sample suction mechanism 106 and the washing tank 108.
- FIG. 2 includes an outside washing point 201 and a waste liquid discharging point 202.
- the outer washing point 201 is a mechanism for mainly cleaning the outer wall of the sample suction nozzle 107 before sucking the sample or in contact with the sample.
- the cleaning portion of the method in which the cleaning liquid springs out from below is used, but a method of discharging the cleaning liquid to the sample suction nozzle may also be used. Further, when a plurality of types of cleaning liquids are used, the number of external washing points 201 may be increased.
- the waste liquid discharge point 202 is a mechanism for discharging the waste liquid that has passed through the sample suction nozzle 107 in order to make the state inside the sample suction nozzle 107 the same for each measurement and for cleaning the inside of the sample suction nozzle 107. It is connected to the flow path.
- the sample suction nozzle 107 can rotate about the rotation center 203 of the sample suction nozzle.
- the sample suction point 109, the outer washing point 201, and the waste liquid discharge point 202 so as to be on the trajectory 204 of the sample suction nozzle, the sample can be moved on a plane to all positions accessed by the sample suction nozzle 107 in one cycle. It can be completed with one driving element provided in the suction mechanism 106.
- the sample container 102 is introduced into the autosampler 101 from the pretreatment section.
- the sample container 102 placed at the sample transfer point 104 is installed at the sample suction point 109 by using the sample transfer means 105.
- the sample is introduced from the sample container 102 at the sample suction point 109 to an analysis unit such as a column or a photometer via the sample suction nozzle 107.
- the sample container 102 is carried to the waste liquid suction point 111 by the sample transfer means 105, and the sample in the sample container is sucked by the waste liquid suction mechanism.
- the sample container 102 is moved again to the sample transfer point 104 by the sample transfer means 105, and is returned to the pretreatment section by the transfer mechanism 103.
- FIG. 3 is a diagram showing the position and information of the sample container 102 immediately before the sample container 102 is transferred from the sample transfer point 104 to the sample suction point 109.
- the state is one of (1) to (4) in FIG.
- (3) and (4) may be regarded as the same because the order of measurement can be changed depending on the type of the sample to be supplied later.
- (3) is in any of the states (6) to (9).
- (6) returns to the initial state of (5) at the start of the next cycle.
- the sample container is placed at the sample suction point 2, and the sample container is about to be placed from the sample transfer point to the sample suction point 2.
- the time chart of the situation of (1) in FIG. 3 is shown in FIG. As an initial state, the sample transfer means is at the sample transfer location and does not grip the sample container, the sample suction mechanism and the waste liquid suction mechanism are at the cleaning position, and the transfer mechanism is in the device unit while holding the sample container.
- the sample transfer means grips the sample container at the sample transfer point and moves to the sample suction point 1 at 3s.
- the sample container is installed and then moved to the waste liquid suction point.
- the sample suction mechanism 106 which was being washed, accesses the sample suction point at 7s, sucks the sample at 8s, and introduces the sample into the analysis unit at 10s. After the introduction, the cleaning operation is performed.
- the sample transfer means moves to the waste liquid suction point at 6s, grips the sample container used in the previous cycle at 7s, and installs the sample container at the sample transfer point at 10s.
- the transfer mechanism moves the received sample container to the pretreatment section and discards it at the pretreatment section.
- the sample transfer means moves to the sample suction point 1 at the time of 12s, grabs the sample container used for the measurement, and moves it to the waste liquid suction point. Further, at 19s, the residual liquid is sucked by the waste liquid suction mechanism.
- FIG. 4 The time chart of the situation of (3) in FIG. 3 is shown in FIG. In FIG. 4, the sample container is carried to the waste liquid suction point after the measurement is completed, and in this situation, it is moved to the sample suction point 2.
- FIG. 7 is a time chart when there is no margin. Take advantage of the evacuation site and carry over one sample container to the next cycle.
- FIG. 6 The time chart of the situation of (6) in FIG. 3 is shown in FIG. In FIG. 6, after the measurement is completed, the sample container at the sample suction point 1 is carried to the waste liquid suction point. In this situation, the sample container is moved to the sample suction point 2.
- the auto sampler of the liquid chromatograph has a plurality of sample suction nozzles for sucking a sample from a sample container installed at each sample suction point, and a sample transfer means for transferring the sample container to each sample suction point. It is provided with a gripper), a sample container (received from the sample pretreatment section) charged into the auto sampler, and a retracting point for holding the sample container collected from the sample suction point.
- a disposal site for example, a pretreatment unit.
- a shelter as a place to store.
- the sample transfer means holds the sample container, such as when an error occurs, by performing the operation of installing the sample container at the evacuation site, the operation can be stopped without losing the sample, or the situation. It is possible to confirm.
- the sample delivery with the pretreatment section is automatically performed. It is possible.
- the sample transfer means holds the sample container as a place to put the evacuation site until it is returned to the place where the sample container that has been inspected is discarded (for example, the pretreatment unit), or the device stops due to an error.
- the sample transfer means operates to install the sample container at the evacuation site, so that the operation can be stopped or the status can be checked without losing the sample. be.
- the movement on the plane to all the positions accessed by the suction nozzle in one cycle can be completed with one driving element.
- the occupied area can be reduced as compared with the turntable type sample suction point arrangement.
- the number of driving elements of the sample transfer means can be reduced by one as compared with the arrangement in which the sample is arranged in a grid pattern on a plane.
- Space saving here means reducing the area used and the number of drive elements by arranging the suction points in a straight line and covering the place where the suction nozzle should be accessed with one drive element. It is a structure.
- Preventing a decrease in throughput due to multiple measurements of one sample here means that it can be operated to prevent a decrease in throughput even when performing multiple analyzes in one sample container. It is to provide a storage place for a sample container that has no place to put it when performing a plurality of analyzes with one sample container, that is, when it is necessary to sequentially install and suck at a plurality of sample suction points.
- the "simple structure" here means that the number of motors is reduced by arranging the suction points in a straight line and covering the places where the suction nozzles should be accessed with one drive element. That is.
- Prevention of sample loss means that the operation can be stopped without loss of the sample when the device cannot confirm whether the sample transfer means holds the sample container due to the device stopping due to an error. You can check the situation.
- the autosampler 101 of the liquid chromatograph was used in the examples, the present invention can also be applied to an automatic analyzer and an analyzer such as DNA.
- 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 Auto sampler
- 102 Specimen container
- 103 Transfer mechanism
- 104 Specimen transfer point
- 105 Specimen transfer means
- 106 Specimen suction mechanism
- 107 Specimen suction nozzle
- 108 Washing tank
- 109 Specimen suction point
- 110 Waste liquid suction mechanism
- 111 Waste liquid suction point
- 112 Evacuation point
- 201 Outer wash point
- 202 Waste liquid discharge point
- 203 Center of rotation of sample suction nozzle
- 204 Trajectory of sample suction nozzle
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Abstract
Description
Claims (4)
- 液体クロマトグラフのオートサンプラであって、
各々の検体吸引箇所に設置された検体容器から検体を吸引する複数の検体吸引ノズルと、
前記各々の検体吸引箇所へ前記検体容器を移送する検体移送手段と、
当該オートサンプラに投入された検体容器と前記検体吸引箇所から回収した検体容器とを保持可能な退避箇所と、を備えた液体クロマトグラフのオートサンプラ。 - 請求項1に記載の液体クロマトグラフのオートサンプラであって、
1つの駆動要素を動かすことによりアクセス可能な位置に、前記検体吸引箇所と洗浄箇所とを配置した液体クロマトグラフのオートサンプラ。 - 請求項2に記載の液体クロマトグラフのオートサンプラであって、
前記検体吸引箇所を直線上に配置した液体クロマトグラフのオートサンプラ。 - 請求項1乃至3のいずれか1項に記載の液体クロマトグラフのオートサンプラを備えた液体クロマトグラフ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US18/253,987 US20230408459A1 (en) | 2020-12-16 | 2021-12-08 | Autosampler of liquid chromatograph and liquid chromatograph including the same |
JP2022569903A JP7576102B2 (ja) | 2020-12-16 | 2021-12-08 | 液体クロマトグラフのオートサンプラ、およびこれを備えた液体クロマトグラフ |
EP21906454.0A EP4266060A1 (en) | 2020-12-16 | 2021-12-08 | Liquid chromatograph autosampler and liquid chromatograph comprising same |
CN202180078626.2A CN116472462A (zh) | 2020-12-16 | 2021-12-08 | 液相色谱仪的自动取样器以及具备该自动取样器的液相色谱仪 |
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JP2020-208191 | 2020-12-16 | ||
JP2020208191 | 2020-12-16 |
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WO2022131091A1 true WO2022131091A1 (ja) | 2022-06-23 |
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US (1) | US20230408459A1 (ja) |
EP (1) | EP4266060A1 (ja) |
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WO (1) | WO2022131091A1 (ja) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08313538A (ja) * | 1995-05-22 | 1996-11-29 | Mitsubishi Corp | 自動分析装置 |
JP2009042226A (ja) * | 2007-07-18 | 2009-02-26 | Hitachi High-Technologies Corp | キャピラリ電気泳動装置、及びサンプルトレイ |
JP2016170079A (ja) * | 2015-03-13 | 2016-09-23 | 株式会社島津製作所 | 前処理装置及びこれを備えた分析システム |
US20170145373A1 (en) * | 2015-11-19 | 2017-05-25 | Alexander Lee Lianides | Automated system for cultivating transgenic c. elegans |
WO2020090159A1 (ja) * | 2018-11-02 | 2020-05-07 | 株式会社島津製作所 | 試料前処理装置、該装置を備えた分析システム、及びオートサンプラ |
WO2020217732A1 (ja) * | 2019-04-26 | 2020-10-29 | 株式会社日立ハイテク | 自動分析装置および自動分析装置の設計方法 |
-
2021
- 2021-12-08 WO PCT/JP2021/045055 patent/WO2022131091A1/ja active Application Filing
- 2021-12-08 CN CN202180078626.2A patent/CN116472462A/zh active Pending
- 2021-12-08 EP EP21906454.0A patent/EP4266060A1/en active Pending
- 2021-12-08 US US18/253,987 patent/US20230408459A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08313538A (ja) * | 1995-05-22 | 1996-11-29 | Mitsubishi Corp | 自動分析装置 |
JP2009042226A (ja) * | 2007-07-18 | 2009-02-26 | Hitachi High-Technologies Corp | キャピラリ電気泳動装置、及びサンプルトレイ |
JP2016170079A (ja) * | 2015-03-13 | 2016-09-23 | 株式会社島津製作所 | 前処理装置及びこれを備えた分析システム |
US20170145373A1 (en) * | 2015-11-19 | 2017-05-25 | Alexander Lee Lianides | Automated system for cultivating transgenic c. elegans |
WO2020090159A1 (ja) * | 2018-11-02 | 2020-05-07 | 株式会社島津製作所 | 試料前処理装置、該装置を備えた分析システム、及びオートサンプラ |
WO2020217732A1 (ja) * | 2019-04-26 | 2020-10-29 | 株式会社日立ハイテク | 自動分析装置および自動分析装置の設計方法 |
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US20230408459A1 (en) | 2023-12-21 |
CN116472462A (zh) | 2023-07-21 |
EP4266060A1 (en) | 2023-10-25 |
JPWO2022131091A1 (ja) | 2022-06-23 |
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