CN203587602U - Liquid supply device for liquid taking operation of automatic sampler - Google Patents
Liquid supply device for liquid taking operation of automatic sampler Download PDFInfo
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- CN203587602U CN203587602U CN201320744313.9U CN201320744313U CN203587602U CN 203587602 U CN203587602 U CN 203587602U CN 201320744313 U CN201320744313 U CN 201320744313U CN 203587602 U CN203587602 U CN 203587602U
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- liquid
- automatic sampler
- arm
- pipeline
- reservoir
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- 239000007788 liquid Substances 0.000 title claims abstract description 190
- 239000012530 fluid Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 12
- 239000004809 Teflon Substances 0.000 claims description 8
- 229920006362 Teflon® Polymers 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 5
- 239000003960 organic solvent Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000005297 pyrex Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010876 biochemical test Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- -1 imbibition Substances 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The utility model discloses a liquid supply device for a liquid taking operation of an automatic sampler. The liquid supply device comprises an automatic sampler base plate, a first liquid pipeline, a reservoir, a cleaning tank, a mechanical check valve, a second liquid container, an X/Y arm and a Z arm of the automatic sampler, a second liquid pipeline, an aspirating needle, a suction pump, a noncontact bubble sensor and a screw motor, wherein one end of the first liquid pipeline is arranged at the bottom end of the first liquid container; the reservoir and the cleaning tank are arranged on the base plate; the mechanical check valve is arranged on the first liquid pipeline; the second liquid container is arranged on the base plate; the X/Y arm and the Z arm of the automatic sampler are arranged on the base plate; the second liquid pipeline is arranged on the Z arm of the automatic sampler; the aspirating needle is arranged at one end of the second liquid pipeline; the suction pump and the noncontact bubble sensor are arranged on the second liquid pipeline; the screw motor is arranged on the Z arm of the automatic sampler. The liquid supply device is compact in structure, high in cost performance, and applicable to kinds of liquid to automatically look for liquid levels by matching with the sensor, a certain volume of liquid is automatically absorbed by matching with the suction pump; the residual liquid inside the reservoir does not flow back after quantitative liquid absorption is finished, and the liquid in the first liquid container is prevented from being polluted by backflow of the liquid.
Description
Technical field
The utility model relates to a kind of equipment for biochemical test, particularly a kind of fluid Supplying apparatus of getting liquid operation for automatic sampler.
Background technology
The primary structure of automatic sampler comprises: automatic sampler chassis, X/Y arm and Z arm.Wherein, Z arm is provided with aspirating needle, and aspirating needle can move in X, Y, tri-directions of Z.Suction pumps provides the power of liquid flow, and common suction pumps mainly comprises: syringe-type syringe pump, ceramic pump, peristaltic pump or gear-type pump.By cooperatively interacting of suction pumps, aspirating needle and automatic sampler, can realize the operation to liquid, such as: imbibition, liquid feeding, to move liquid, dilution etc. fluid operated.Because different liquid shares an aspirating needle, therefore need to clean aspirating needle.
The traditional method that aspirating needle is got liquid has two kinds of modes: the first, directly get liquid pattern.Aspirating needle is first moved to bottom of liquid container, and what then start that suction pumps carries out certain volume gets liquid operation, after getting liquid, aspirating needle is lifted away to liquid container, directly gets liquid operate to next liquid container.The second, the auxiliary liquid pattern of getting of multi-channel electromagnetic valve.Suction pumps is connected with pipeline with the common port of multi-channel electromagnetic valve, and other interface is connected with pipeline from different liquid containers.Switching by multi-channel electromagnetic valve matches with suction pumps, thereby realizes the different liquids of drawing certain volume.Two kinds of above aspirating needles are got liquid mode respectively relative merits: the first, and advantage is that cost is minimum, technical difficulty is minimum.Shortcoming is that some liquid container volume is excessive, and cross pollution is large, and liquid container is different, and actual use is upper and unreasonable.The second, advantage is that cross pollution is little, to liquid container type, requires lower.Shortcoming be multi-channel electromagnetic valve common mostly be ten passages most, limited amount, price is high, to the clean level of liquid, requires high.While especially needing to adopt a plurality of suction pumps, a plurality of aspirating needle to draw same liquid, it is complicated that system becomes, and cost increases greatly.
In view of this, for solving the problems of the technologies described above, the research and development of the inventor based on association area, and through constantly test and improvement, and then have generation of the present utility model.
Utility model content
The utility model is in order to address the above problem, reach good result of use and economic benefit, with more common Mechanism Combination together, a kind of compact conformation, applicable all kinds liquid container are provided, have not used expensive multi-channel electromagnetic valve, can have coordinated sensor automatically to look for liquid level, and the device of quantitative imbitition.
For reaching above-mentioned purpose, the utility model provides a kind of fluid Supplying apparatus of getting liquid operation for automatic sampler, and it comprises:
Automatic sampler chassis;
First liquid container;
First liquid pipeline, wherein one end is positioned at first liquid container bottom;
Reservoir, is positioned on automatic sampler chassis, and the other end of first liquid pipeline is connected with reservoir, and after aspirating needle inserts, reservoir can be airtight, and the liquid that suction pumps is drawn from first liquid container can be stored in reservoir temporarily;
Mechanical check valve, is located on first liquid pipeline, and mechanical check valve is located between first liquid container and reservoir;
Second liquid container, is positioned on automatic sampler chassis;
Automatic sampler X/Y arm, is set up on described automatic sampler chassis;
Automatic sampler Z arm, is located on automatic sampler X/Y arm;
Second liquid pipeline, be fixed on automatic sampler Z arm and the two ends of second liquid pipeline respectively to downward-extension;
Aspirating needle, is located at wherein one end of second liquid pipeline;
Suction pumps, is located on second liquid pipeline;
Contactless air bubble sensor, also be located on second liquid pipeline, and contactless air bubble sensor is located between aspirating needle and suction pumps, described contactless air bubble sensor is used for monitoring reservoir liquid levels position, and auxiliary suction pumps is full of liquid by reservoir, that carries out predetermined gets liquid operation.
Described gets the fluid Supplying apparatus of liquid operation for automatic sampler, wherein, also comprises rinse bath, and rinse bath is located on described automatic sampler chassis.
Described gets the fluid Supplying apparatus of liquid operation for automatic sampler, wherein, also comprises spindle motor, is located on automatic sampler Z arm and for controlling aspirating needle and rises or decline.
Described gets the fluid Supplying apparatus of liquid operation for automatic sampler, and wherein, what described liquid line adopted is Teflon(Teflon, contains a series of fluoropolymers) pipe.
Described gets the fluid Supplying apparatus of liquid operation for automatic sampler, and wherein, described first liquid container and second liquid container adopt the material of anticorrosive property.
Described gets the fluid Supplying apparatus of liquid operation for automatic sampler, and wherein, described first liquid container and second liquid container adopt Pyrex material or Teflon material.
Described gets the fluid Supplying apparatus of liquid operation for automatic sampler, and wherein, described aspirating needle adopts the material of acid and alkali-resistance, organic solvent-resistant.
Described gets the fluid Supplying apparatus of liquid operation for automatic sampler, and wherein, described aspirating needle adopts stainless steel.
Described gets the fluid Supplying apparatus of liquid operation for automatic sampler, and wherein, described spindle motor adopts linear stepping motor, and the initial position of motor is by optocoupler or Hall orientation.
Described gets the automatic liquid dispenser with liquid level detector of liquid operation for automatic sampler, and wherein, described suction pumps adopts syringe-type syringe pump or ceramic volume pump.
The utility model has following advantage compared with prior art:
1, the utility model device, by contactless air bubble sensor and suction pumps, can judge accurately and reliably liquid levels position in reservoir, and make reservoir be full of liquid.
2, the utility model device, by rinse bath, reservoir and mechanical check valve, has replaced the use of multi-channel electromagnetic valve, simplifies the structure, and has reduced cost.
3,, than directly getting liquid pattern, the utility model device, by rinse bath, reservoir and mechanical check valve, reduces cross pollution to greatest extent.
4, than multi-channel electromagnetic valve is auxiliary, get liquid pattern, the volume of the utility model device is little, and space availability ratio is high, is more prone to upgrade to the device that many aspirating needles are drawn same liquid simultaneously.
5, than multi-channel electromagnetic valve is auxiliary, get liquid pattern, the circuit of the utility model device and mechanical aspects technical difficulty are little, and degree of ripeness is high, and reliability is higher, more easily realize with universal.
Accompanying drawing explanation
Fig. 1 is the stereographic map of fluid Supplying apparatus of the present utility model;
Fig. 2 is the schematic diagram before quantitative liquid getting of the present utility model;
Fig. 3 is the schematic diagram in quantitative liquid getting of the present utility model.
Description of reference numerals: 1-first liquid container; 2-first liquid pipeline; 3-mechanical check valve; 4-second liquid container; 5-reservoir; 6-rinse bath; 7-automatic sampler chassis; 8-aspirating needle; 9-automatic sampler X/Y arm; 10-automatic sampler Z arm; 11-spindle motor; 12-second liquid pipeline; The contactless air bubble sensor of 13-; 14-suction pumps;
Embodiment
Below in conjunction with accompanying drawing explanation, further introduce the utility model.
Shown in Fig. 1, Fig. 2 and Fig. 3, be the stereographic map of automatic liquid dispenser with liquid level detector of the present utility model, the schematic diagram before quantitative liquid getting and the schematic diagram in quantitative liquid getting; The structure of the utility model device forms and comprises: first liquid container 1, first liquid pipeline 2, mechanical check valve 3, second liquid container 4, reservoir 5, rinse bath 6, automatic sampler chassis 7, aspirating needle 8, automatic sampler X/Y arm 9, automatic sampler Z arm 10, spindle motor 11, second liquid pipeline 12, contactless air bubble sensor 13 and suction pumps 14.
Described first liquid container 1 user can select suitable position to place according to actual conditions, and for example, first liquid container 1 can be positioned on automatic sampler chassis 7 or a side.Second liquid container 4 is positioned on described automatic sampler chassis 7, and position coordinates is fixed.In addition, described automatic sampler X/Y arm 9 is set up on automatic sampler chassis 7, automatic sampler Z arm 10 is located on automatic sampler X/Y arm 9, described first liquid pipeline 2 two ends are connected with reservoir 5 with first liquid container 1 respectively, described mechanical check valve 3 is fixed on first liquid pipeline 2, described second liquid pipeline 12 is fixed on automatic sampler Z arm 10, and the two ends of second liquid pipeline 12 are respectively to downward-extension, wherein, wherein one end of second liquid pipeline 12 is provided with aspirating needle 8, the other end of second liquid pipeline 12 points to second liquid container 4, and on second liquid pipeline 12, be also provided with contactless air bubble sensor 13 and suction pumps 14, contactless air bubble sensor 13 is located between aspirating needle 8 and suction pumps 14.On described automatic sampler Z arm 10, be also provided with spindle motor 11, for controlling aspirating needle 8, rise or decline.In addition, described automatic sampler chassis 7 is provided with rinse bath 6.
Directly over described reservoir 5, be provided with the through hole of corresponding aspirating needle 8, when aspirating needle 8 inserts in reservoir 5,5 one-tenth air-tight states of reservoir.
Wherein, what described first liquid pipeline 2 and second liquid pipeline 12 adopted is Teflon pipe, and Teflon pipe has very strong tolerance to corrosive soda acid and organic solvent.
Described first liquid container 1, second liquid container 4 adopts the material of anticorrosive properties, in the present embodiment, employing be Pyrex material or Teflon material container, liquid is used corrosive inorganic or organic reagent.
Described aspirating needle 8 is the material of acid and alkali-resistance, organic solvent-resistant, and what adopt in the present embodiment is stainless steel.As the spindle motor 11 that drives aspirating needle 8 to move up and down, are high-precision linear stepping motors.The initial position of motor is by optocoupler or Hall orientation.
Described contactless air bubble sensor 13 can simple, fastly be arranged on liquid line 12, judges whether liquid flows through pipeline, and determine liquid levels position with this signal by photoelectric switching signal.
Described suction pumps 14 adopts syringe-type syringe pump or ceramic volume pump, and suction pumps requires that corrosive soda acid and organic solvent are had to very strong tolerance.
Wherein, after suction pumps 14 metering volume finish, the spindle motor 11 on automatic sampler Z arm 10 is lifted away from reservoir 5 by aspirating needle 8.Automatic sampler X/Y arm 9 moves to rinse bath 6 positions by aspirating needle 8 and cleans.Then prepare to carry out automatic quantitative liquid taking operation next time.
Wherein, suction pumps 14 provides the power of liquid flow, drive liquid in first liquid container 1 flow through successively first liquid pipeline 2, mechanical check valve 3, reservoir 5, aspirating needle 8, second liquid pipeline 12, contactless air bubble sensor 13 and suction pumps 14, finally arrive the second liquid container 4 that will go.
Wherein, after suction pumps 14 is started working, contactless air bubble sensor 13 can Real-Time Monitoring liquid line 12.During reservoir 5 underfill liquid, contactless air bubble sensor 13 can not respond.
Wherein, when contactless air bubble sensor 13 responds and measures after liquid, suction pumps 14 quits work, and aspirating needle 8 moves to reservoir 5 bottoms, and suction pumps 14 works on, thereby completes quantitative liquid getting operation.
Next in conjunction with Fig. 2 and Fig. 3, elaborate four job steps of the present utility model.
The first step: aspirating needle 8 from the initial position on automatic sampler chassis 7 move to reservoir 5 directly over.First liquid container 1 user selects suitable position to place as required.Second liquid container 4 is positioned on automatic sampler chassis 7, and position coordinates is fixed, system is converted to the position coordinates setting the operational factor of automatic sampler X/Y arm 9 drive motor, then drive aspirating needle 8 on automatic sampler chassis 7 fast moving to reservoir 5.This process finishes.
Second step: aspirating needle 8 inserts reservoir 5 directly over reservoir 5, makes 5 one-tenth air-tight states of reservoir, and makes aspirating needle 8 needle points be positioned at reservoir 5 above 10mm places, bottom.Suction pumps 14 starts the flow velocity running according to system default, the liquid in first liquid container 1 will flow through successively first liquid pipeline 2, mechanical check valve 3, reservoir 5, aspirating needle 8, second liquid pipeline 12 and contactless air bubble sensor 13.When liquid is flowed through contactless air bubble sensor 13, contactless air bubble sensor 13 has the variation of photosignal, then feeds back to data processing centre (DPC) of the present utility model, and then, system can stop the operation of suction pumps 14.Now, liquid has been full of reservoir 5.Then aspirating needle 8 moves to reservoir 5 bottoms, and this process finishes.
The 3rd step: the volume that suction pumps 14 is set according to user and flow velocity are drawn the liquid of certain volume, and liquid finally flows to second liquid container 4.Suction pumps 14 is started working, the volume of setting according to user and flow velocity are drawn the liquid of certain volume, after completing, suction pumps 14 quits work, spindle motor 11 is lifted away from aspirating needle 8 to initial position directly over reservoir 5, then suction pumps 14 works on, and the liquid remaining in whole stream is all delivered to second liquid container 4.This quantitative liquid getting process finishes.
The 4th step, aspirating needle 8 moves to automatic sampler rinse bath 6 positions, and aspirating needle 8 is cleaned, and completes whole process, and the liquid of getting of preparing to carry out next time operates.Automatic sampler X/Y arm 9 drives aspirating needle 8 to move to rinse bath 6 positions, the spindle motor 11 of automatic sampler Z arm 10 is moved downward to aspirating needle 8 in rinse bath 6, wash pin operation, after washing pin and finishing, the spindle motor 11 of automatic sampler Z arm 10 is lifted away from rinse bath 6 by aspirating needle 8, and use nitrogen drying aspirating needle 8, after dry end, automatic sampler X/Y arm 9 drives aspirating needle 8 to move to the initial position on automatic sampler chassis 7, whole process finishes, and prepares to carry out liquid level next time and follows and get liquid operation.
The utility model can meet the restriction that liquid operation is not subject to first liquid Container Type of getting of automatic sampler.Can meet the position that aspirating needle coordinates liquid levels in contactless air bubble sensor Automatic-searching reservoir, and realize the effect of automatically getting liquid without cross pollution.
To description of the present utility model, be illustrative above; and it is nonrestrictive; those skilled in the art is understood, and can carry out many modifications, variation or equivalence to it, but they all will fall in protection domain of the present utility model in claim within the spirit limiting and scope.
Claims (10)
1. for automatic sampler, get a fluid Supplying apparatus for liquid operation, it is characterized in that, comprising:
Automatic sampler chassis;
First liquid container;
First liquid pipeline, wherein one end is positioned at first liquid container bottom;
Reservoir, is positioned on automatic sampler chassis, and the other end of first liquid pipeline is connected with reservoir;
Mechanical check valve, is located on first liquid pipeline, and mechanical check valve is located between first liquid container and reservoir;
Second liquid container, is positioned on automatic sampler chassis;
Automatic sampler X/Y arm, is set up on described automatic sampler chassis;
Automatic sampler Z arm, is located on automatic sampler X/Y arm;
Second liquid pipeline, be fixed on automatic sampler Z arm and the two ends of second liquid pipeline respectively to downward-extension;
Aspirating needle, is located at wherein one end of second liquid pipeline;
Suction pumps, is located on second liquid pipeline;
Contactless air bubble sensor, also be located on second liquid pipeline, and contactless air bubble sensor is located between aspirating needle and suction pumps, described contactless air bubble sensor is used for monitoring reservoir liquid levels position, and auxiliary suction pumps is full of liquid by reservoir, that carries out predetermined gets liquid operation.
2. the fluid Supplying apparatus of getting liquid operation for automatic sampler according to claim 1, is characterized in that, also comprises that rinse bath, rinse bath be located on described automatic sampler chassis.
3. the fluid Supplying apparatus of getting liquid operation for automatic sampler according to claim 1, is characterized in that, also comprises spindle motor, is located on automatic sampler Z arm and for controlling aspirating needle and rises or decline.
4. the fluid Supplying apparatus of getting liquid operation for automatic sampler according to claim 1, is characterized in that, what described first liquid pipeline and second liquid pipeline adopted is Teflon pipe.
5. the fluid Supplying apparatus of getting liquid operation for automatic sampler according to claim 1, is characterized in that, described first liquid container and second liquid container adopt the material of anticorrosive property.
6. the fluid Supplying apparatus of getting liquid operation for automatic sampler according to claim 5, is characterized in that, described first liquid container and second liquid container adopt Pyrex material or Teflon material.
7. the fluid Supplying apparatus of getting liquid operation for automatic sampler according to claim 1, is characterized in that, described aspirating needle adopts the material of acid and alkali-resistance, organic solvent-resistant.
8. the fluid Supplying apparatus of getting liquid operation for automatic sampler according to claim 7, is characterized in that, described aspirating needle adopts stainless steel.
9. the fluid Supplying apparatus of getting liquid operation for automatic sampler according to claim 1, is characterized in that, described spindle motor adopts linear stepping motor, and the initial position of motor is by optocoupler or Hall orientation.
10. the fluid Supplying apparatus of getting liquid operation for automatic sampler according to claim 1, is characterized in that, described suction pumps adopts syringe-type syringe pump or ceramic volume pump.
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CN201320744313.9U CN203587602U (en) | 2013-11-21 | 2013-11-21 | Liquid supply device for liquid taking operation of automatic sampler |
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CN201320744313.9U CN203587602U (en) | 2013-11-21 | 2013-11-21 | Liquid supply device for liquid taking operation of automatic sampler |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103969462A (en) * | 2014-05-29 | 2014-08-06 | 上海仪乐智能仪器有限公司 | Automatic detector for water sample |
CN106390492A (en) * | 2016-11-02 | 2017-02-15 | 北京莱伯泰科仪器股份有限公司 | Multichannel rotary evaporation and quantitative concentration device for processing dark-color and lightproof liquid |
CN107367766A (en) * | 2016-05-13 | 2017-11-21 | 深圳迈瑞生物医疗电子股份有限公司 | The liquid measure monitoring device and method of sample analyser |
CN109109460A (en) * | 2017-06-23 | 2019-01-01 | 灿美工程股份有限公司 | Pouring liquid equipment |
CN113403431A (en) * | 2021-06-30 | 2021-09-17 | 东莞太力生物工程有限公司 | Cell liquid taking control method, device, equipment and storage medium based on robot |
CN114545014A (en) * | 2022-04-22 | 2022-05-27 | 成都理工大学 | Double-channel sample introduction system |
-
2013
- 2013-11-21 CN CN201320744313.9U patent/CN203587602U/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103969462A (en) * | 2014-05-29 | 2014-08-06 | 上海仪乐智能仪器有限公司 | Automatic detector for water sample |
CN107367766A (en) * | 2016-05-13 | 2017-11-21 | 深圳迈瑞生物医疗电子股份有限公司 | The liquid measure monitoring device and method of sample analyser |
CN107367766B (en) * | 2016-05-13 | 2020-12-15 | 深圳迈瑞生物医疗电子股份有限公司 | Liquid amount monitoring device and method for sample analyzer |
CN106390492A (en) * | 2016-11-02 | 2017-02-15 | 北京莱伯泰科仪器股份有限公司 | Multichannel rotary evaporation and quantitative concentration device for processing dark-color and lightproof liquid |
CN109109460A (en) * | 2017-06-23 | 2019-01-01 | 灿美工程股份有限公司 | Pouring liquid equipment |
CN113403431A (en) * | 2021-06-30 | 2021-09-17 | 东莞太力生物工程有限公司 | Cell liquid taking control method, device, equipment and storage medium based on robot |
CN114545014A (en) * | 2022-04-22 | 2022-05-27 | 成都理工大学 | Double-channel sample introduction system |
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