CN115436561A - Full-automatic permanganate index tester and process - Google Patents
Full-automatic permanganate index tester and process Download PDFInfo
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- CN115436561A CN115436561A CN202210923974.1A CN202210923974A CN115436561A CN 115436561 A CN115436561 A CN 115436561A CN 202210923974 A CN202210923974 A CN 202210923974A CN 115436561 A CN115436561 A CN 115436561A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G01N21/79—Photometric titration
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- G—PHYSICS
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- 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
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- 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
- G01N35/0099—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor comprising robots or similar manipulators
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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Abstract
The invention discloses a full-automatic permanganate index tester and a process, which comprise a grabbing mechanism, an electric grabbing hand and a damping platform, wherein the grabbing mechanism moves in a first direction, a second direction and a third direction respectively, the first direction is an X axis, the second direction is a Y axis, the third direction is a Z axis, the grabbing mechanism is provided with the electric grabbing hand in the Z axis direction, the grabbing mechanism can grab sample cups at different positions through the direction control of the X axis, the Y axis and the Z axis, and the damping platform is provided with a constant temperature position for constant temperature reaction and a water bath kettle for heating and digestion; the device can shorten the time required by the permanganate index measuring process and carry out automatic treatment.
Description
Technical Field
The invention relates to the field of permanganate index measurement, in particular to a full-automatic permanganate index tester and a process.
Background
Most of the existing permanganate index testers are single-degree-of-freedom sample feeding devices and dropping liquid ratio monitoring, the occupied space is large, an external computer is needed, the titration position is replaced manually, and the replacement is complicated, and the invention patent with the publication number of CN 112129885A provides a simple full-automatic permanganate index tester structure, but because two water bath heating with different temperatures are involved in the configuration process, the temperature monitoring and the temperature rise and drop waiting are needed, and the solution configuration process is actually prolonged.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a full-automatic permanganate index tester and a process.
In order to achieve the purpose, the invention adopts the following technical scheme: a full-automatic permanganate index tester comprises a grabbing mechanism which moves along a first direction, a second direction and a third direction respectively, wherein the first direction is an X axis, the second direction is a Y axis, the third direction is a Z axis, the grabbing mechanism is provided with an electric grabbing hand in the Z axis direction, and the grabbing mechanism is controlled by the X axis, the Y axis and the Z axis so that the electric grabbing hand can grab sample cups at different positions;
the shock absorption platform is provided with a constant temperature position for constant temperature reaction and a water bath kettle for heating and digesting.
As a further description of the above technical solution: and a fixing frame is arranged below the grabbing mechanism and is arranged on the damping platform.
As a further description of the above technical solution: the upper surface of the damping platform is also provided with a liquid adding level, a sample grade, a drop positioning and a reagent bottle;
and a first stirring motor is arranged at the bottom of the liquid adding level and drives a magnetic stirrer to stir in the liquid adding level.
As a further description of the above technical solution: and the first liquid adding arm and the second liquid adding arm are positioned to the liquid adding level, and the first injection pump injects the first solution into a sample cup on the sample level through the first liquid adding arm.
As a further description of the above technical solution: and the peristaltic pump is connected with the reagent bottle and the first liquid adding arm, and is used for injecting the second solution into the sample cup, and the sample cup is at a liquid adding position and is stirred by the first stirring motor at the bottom.
As a further description of the above technical solution: and heating rods are arranged at the bottoms of the water bath kettle and the constant temperature position.
As a further description of the above technical solution: the first liquid adding arm can run to the drop positioning to titrate the first solution, and the fixed frame is provided with a camera to monitor the drop positioning.
As a further description of the above technical solution: a full-automatic permanganate index determination process comprises the following steps:
step 1: before the sample preparation is started, hardware reset is carried out, the mechanical arm is reset through the operation of a reset photoelectric switch and a motor, the position of the sample is set through software, and a heating rod is controlled to heat a water bath kettle and a constant temperature position to start the sample preparation;
step 2: the grabbing mechanism drives an electric grab to be positioned to a set sample grade, a sample cup filled with 100ml of sample and a magnetic stirrer is grabbed to a liquid adding level, a first stirring motor below the liquid adding level is started, and the magnetic stirrer is driven to stir the sample;
and step 3: positioning a first liquid adding arm and a second liquid adding arm to the liquid adding level, pumping 10ml of first solution by a first injection pump through a flow path system, and completely injecting the first solution into the sample cup through a pipeline on the first liquid adding arm;
and 4, step 4: starting a peristaltic pump, wherein a liquid inlet of the peristaltic pump is connected with a reagent bottle, the other end of the peristaltic pump is connected with a pipeline on the first liquid adding arm, 5ml of second solution is injected into the sample cup by the peristaltic pump, and the solution is uniformly mixed by a magnetic stirrer;
and 5: the grabbing mechanism drives the electric grabbing hand to grab the sample cup added with the solution into the water bath kettle, the sample cup is dissolved in boiling water bath for 30min, the software automatically counts time until the dissolution is completed, and the grabbing mechanism drives the electric grabbing hand to grab the sample cup to the liquid adding level;
step 6: the second liquid adding arm runs to the position of the liquid adding level sample, the software controls the injection pump to pump 10ml of third solution through the pipeline system, the second solution is completely injected into the sample cup through the pipeline on the second liquid adding arm, and the first stirring motor on the liquid adding level is started to drive the magnetic stirrer to mix the solutions;
and 7: grabbing the sample cup after liquid adding to a constant temperature position for constant temperature control, and grabbing the sample cup to a dripping position after the sample is constant in temperature and stable;
and 8: starting a second stirring motor below the drop positioning part to drive a magnetic stirrer to stir and mix the sample uniformly;
the first heating arm moves to the drop positioning, and the first solution is dripped into the sample cup drop by drop through the first injection pump and the corresponding flow path system to titrate the sample;
and step 9: and in the process of sample titration, starting a camera, shooting the state of a sample in the sample cup, analyzing the color change of a sample photo through software, carrying out shooting and software picture analysis while carrying out titration, stopping titration when the color of the sample is changed into a pink color, and recording the titration amount of the injection pump I to obtain detection data.
As a further description of the above technical solution: the first solution is a potassium permanganate solution; the second solution is a sulfuric acid solution; the third solution is a sodium oxalate solution.
As a further description of the above technical solution: the automatic control can be realized by a computer control system connected outside the tester, and the step 1-any step of the step 9 are carried out.
The technical scheme has the following advantages or beneficial effects:
1. simple structure snatchs the mechanism through the triaxial and drives electronic tongs and remove, titrates required device and all installs on mount and shock attenuation platform, saves space.
2. The constant temperature level and the water bath have heating functions, and can respectively carry out heating at different temperatures, so that the time for preparing the solution is saved.
3. The electric gripper is controlled by a computer system, so that different gripping forces can be realized for gripping.
4. The camera of accessible on fixing the mount is monitored, when guaranteeing stably, monitors, makes data more accurate.
5. The device can be connected to a computer control system and controlled by software, and can realize a full-automatic permanganate index measuring part.
Drawings
FIG. 1 is a perspective view of a fully automatic permanganate index meter according to the present invention;
FIG. 2 is a front view of a fully automatic permanganate index tester according to the present invention;
FIG. 3 is a top view of a fully automatic permanganate index ("GMI") meter according to the present invention;
FIG. 4 is a right side view of a fully automatic permanganate index meter according to the present invention;
FIG. 5 is a rear view of a fully automatic permanganate index meter according to the present invention
FIG. 6 is a left side view of a fully automatic permanganate index meter according to the present invention;
fig. 7 is a flow chart of a process of the full-automatic permanganate index tester provided by the invention.
Illustration of the drawings:
1. a grabbing mechanism; 2. an electric gripper; 3. a fixed mount; 4. a shock absorbing platform; 5. a constant temperature position; 6. adding liquid level; 7. sample grade; 8. positioning the drops; 9. a water bath kettle; 10. a reagent bottle; 11. a first stirring motor; 12. a first liquid adding arm; 13. a second liquid adding arm; 14. a first injection pump; 15. a first solution; 16. a sample cup; 17. a peristaltic pump; 18. a second solution; 19. a computer control system; 20. a camera; 21. a second injection pump; 22. a third solution; 23. and a second stirring motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, one embodiment provided by the present invention: the utility model provides a full-automatic permanganate index apparatus which characterized in that: the sample cup grabbing device comprises a grabbing mechanism 1 which moves along a first direction, a second direction and a third direction respectively, wherein the first direction is an X axis, the second direction is a Y axis, the third direction is a Z axis, an electric grabbing hand 2 is arranged in the Z axis direction of the grabbing mechanism 1, and the grabbing mechanism 1 can grab sample cups at different positions by the electric grabbing hand 2 through the direction control of the X axis, the Y axis and the Z axis;
the damping platform 4 is provided with a constant temperature position 5 for constant temperature reaction and a water bath 9 for heating and digesting.
The electric gripper 2 is controlled by the gripping mechanism 1 to grip a sample cup, the three-axis mechanical arm ensures flexible movement of the electric gripper 2 while reducing the movement space, and double heating positions are arranged, so that the waiting time for adjusting the temperature can be reduced during titration of the mixture ratio.
Further, the lower part of the grabbing mechanism 1 is provided with a fixing frame 3, the fixing frame 3 is installed on a damping platform 4, and the stability of the device can be ensured when solution is proportioned.
Further, the upper surface of the damping platform is also provided with a liquid adding level 6, a sample level 7, a titration level 8 and a reagent bottle 10;
add the bottom of liquid level 6 and be equipped with agitator motor 11, drive the magnetic stirrers and stir in the inside of liquid level 6, can realize directly stirring inside the container through the magnetic stirrers, it is more simple and convenient.
Further, the first liquid adding arm 12 and the second liquid adding arm 13 are positioned at the liquid adding position 6, the first injection pump 14 injects the first solution 15 into the sample cup 16 on the sample grade 7 through the first liquid adding arm 12, and the injection of the solution during proportioning can be realized.
Furthermore, a peristaltic pump 17 is connected with the reagent bottle 10 and the first liquid adding arm 12, the second solution 18 is injected into the sample cup 16, and the bottom of the sample cup 16 is connected with a first stirring motor 11 for stirring, so that the solution with the mixture ratio can be added, stirred and uniformly mixed.
Furthermore, the bottom of the water bath 9 and the constant temperature position 5 is provided with a heating rod, so that the heating can be controlled to different temperatures, and the solution proportioning time is shortened.
Furthermore, the first liquid adding arm 12 can run to the titration position 8 to titrate the first solution 15, and the camera 20 is mounted on the fixing frame 3, so that the titration position 8 can be monitored.
As shown in fig. 7, a full-automatic permanganate index measurement process includes:
step 1: before a sample is made, hardware reset is carried out, the mechanical arm is reset through the operation of a reset photoelectric switch and a motor, the position of the sample is set through software, a heating rod is controlled to heat a water bath 6 and a constant temperature position 5, water in the water bath 6 is heated to boiling, the constant temperature position is heated to 80 ℃, and the constant temperature is kept, so that the sample is made;
step 2: the grabbing mechanism 1 drives the electric grabbing hand 2 to be positioned to the set sample position 7, a sample cup 16 filled with 100ml of sample and a magnetic stirrer is grabbed to the liquid adding position 6, a stirring motor I11 below the liquid adding position 6 is started, the magnetic stirrer is driven to stir the sample, and the internal stirring of the container can be realized uniformly;
and 3, step 3: the first adding arm 12 and the second adding arm 13 are positioned to the adding position 6, the first injection pump 14 pumps 10ml of the first solution 15 through the flow path system, and the first solution 15 is completely injected into the sample cup 16 through the pipeline on the first adding arm 12;
and 4, step 4: starting the peristaltic pump 17, wherein a liquid inlet of the peristaltic pump 17 is connected with the reagent bottle 10, the other end of the peristaltic pump 17 is connected with a pipeline on the liquid adding arm I12, the peristaltic pump 17 injects 5ml of the second solution 18 into the sample cup 16, and the solution is uniformly mixed through a magnetic stirrer;
and 5: the grabbing mechanism 1 drives the electric hand grip 2 to grab the sample cup 16 added with the solution into the water bath pot 9, the sample cup 16 is dissolved in boiling water bath for 30min, the software automatically counts time until the dissolution is completed, and the grabbing mechanism 1 drives the electric hand grip 2 to grab the sample cup 16 to the liquid adding level 6;
step 6: the second liquid adding arm 13 runs to the sample position of the liquid adding position 6, the second injection pump 21 is controlled by software to pump 10ml of third solution 22 through the flow path system, the second solution 18 is completely injected into the sample cup 16 through the pipeline on the second liquid adding arm 13, and the first stirring motor 11 on the liquid adding position 6 is started to drive the magnetic stirrer to mix the solutions;
and 7: grabbing the sample cup 16 after adding liquid to a constant temperature position 5 for constant temperature control, and grabbing the sample cup 16 to a drop positioning position 8 after the sample is constant temperature and stable;
and 8: starting a second stirring motor 23 below the dripping positioning 8 to drive a magnetic stirrer to stir and mix the sample uniformly;
the first heating arm 12 moves to the titration position 8, and the first solution 15 is dripped into the sample cup 16 through the first injection pump 14 and the corresponding flow path system to perform titration on the sample;
and step 9: and in the sample titration process, the camera 20 is started, the state of the sample in the sample cup 16 is photographed, the color change of a sample photo is analyzed through software, the photographing and the software picture analysis are carried out while titration is carried out, the titration is stopped when the color of the sample becomes pink, and the titration amount of the first injection pump is recorded to obtain detection data.
Further, the first solution 15 is a potassium permanganate solution; the second solution 18 is a sulfuric acid solution; the third solution 22 is a sodium oxalate solution.
Furthermore, the automatic titration operation can be realized through the control of a computer control system 19 connected to the outer side of the measuring instrument in any step from step 1 to step 9.
The working principle is as follows: the computer control system 19 controls the grabbing mechanism 1 to drive the electric grabbing hand 2 to transfer the sample cup 16 to each position for adding and stirring the solution, controls each injection pump and peristaltic pump to add and titrate the solution, and monitors the titration through the camera 20 on the fixing frame 3.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a full-automatic permanganate index apparatus which characterized in that: the sample cup grabbing device comprises a grabbing mechanism (1) moving along a first direction, a second direction and a third direction respectively, wherein the first direction is an X axis, the second direction is a Y axis, the third direction is a Z axis, an electric grabbing hand (2) is arranged on the grabbing mechanism (1) in the Z axis direction, and the grabbing mechanism (1) is controlled by the X axis, the Y axis and the Z axis, so that the electric grabbing hand (2) can grab sample cups at different positions;
the damping platform (4) is provided with a constant temperature position (5) for constant temperature reaction and a water bath (9) for heating and digesting.
2. The automatic permanganate index meter according to claim 1, wherein: the lower part of the grabbing mechanism (1) is provided with a fixing frame (3), and the fixing frame (3) is installed on the damping platform (4).
3. The automatic permanganate index meter according to claim 2, wherein: the upper surface of the damping platform (4) is also provided with a liquid adding level (6), a sample level (7), a titration level (8) and a reagent bottle (10);
and a first stirring motor (11) is arranged at the bottom of the liquid adding level (6) and drives a magnetic stirrer to stir in the liquid adding level (6).
4. The automatic permanganate index meter according to claim 3, wherein: a first liquid adding arm (12) and a second liquid adding arm (13) are positioned to the liquid adding level (6), and a first injection pump (14) injects a first solution (15) into a sample cup (16) on the sample level (7) through the first liquid adding arm (12).
5. The automatic permanganate index tester according to claim 4, wherein the permanganate index tester comprises: the peristaltic pump (17) is connected with the reagent bottle (10) and the first liquid adding arm (12) and injects a second solution (18) into the sample cup (16), and the sample cup (16) is stirred at the liquid adding position (6) through a first stirring motor (11) connected with the bottom.
6. The automatic permanganate index meter according to claim 1, wherein: and heating rods are arranged at the bottoms of the water bath pot (9) and the constant temperature position (5).
7. The automatic permanganate index meter according to claim 4, wherein: the first liquid adding arm (12) can run to the drop positioning (8) to titrate the first solution (15), and the fixed frame (3) is provided with a camera (20) to monitor the drop positioning (8).
8. A full-automatic permanganate index measurement process is characterized in that: the method comprises the following steps:
step 1: before the sample preparation is started, hardware reset is carried out, the mechanical arm is reset through the operation of a reset photoelectric switch and a motor, the position of the sample is set through software, a heating rod is controlled to heat a water bath pot (6) and a constant temperature position (5), and the sample preparation is started;
step 2: the grabbing mechanism (1) drives the electric grab (2) to be positioned at the set sample position (7), a sample cup (16) filled with 100ml of sample and a magnetic stirrer is grabbed to the liquid adding level (6), a first stirring motor (11) below the liquid adding level (6) is started, and the magnetic stirrer is driven to stir the sample;
and step 3: positioning a first adding arm (12) and a second adding arm (13) to the adding level (6), drawing 10ml of a first solution (15) through a flow path system by a first syringe pump (14), and completely injecting the first solution (15) into the sample cup (16) through a pipeline on the first adding arm (12);
and 4, step 4: starting a peristaltic pump (17), wherein a liquid inlet of the peristaltic pump (17) is connected with the reagent bottle (10), the other end of the peristaltic pump is connected with a pipeline on the first liquid adding arm (12), 5ml of second solution (18) is injected into the sample cup (16) by the peristaltic pump, and the solutions are uniformly mixed by a magnetic stirrer;
and 5: the grabbing mechanism (1) drives the electric grabbing hand (2) to grab the sample cup (16) added with the solution into the water bath pot (9), the sample cup (16) is dissolved in boiling water bath for 30min, the software automatically counts time until the dissolution is completed, and the grabbing mechanism (1) drives the electric grabbing hand (2) to grab the sample cup (16) to the liquid adding level (6);
step 6: the second liquid adding arm (13) runs to the sample position of the liquid adding level (6), the second injection pump (21) is controlled by software to pump 10ml of third solution (22) through a flow path system, the second solution (18) is completely injected into the sample cup (16) through a pipeline on the second liquid adding arm (13), and a first stirring motor (11) on the liquid adding level (6) is started to drive a magnetic stirrer to mix the solutions;
and 7: grabbing the sample cup (16) after liquid adding to a constant temperature position (5) for constant temperature control, and grabbing the sample cup (16) to a drop positioning position (8) after the sample is constant in temperature and stable;
and 8: a second stirring motor (23) below the drop positioning part (8) is started to drive a magnetic stirrer to stir and uniformly mix the sample;
a first heating arm (12) runs to the drop positioning (8), and a first solution (15) is dripped into the sample cup (16) through a first syringe pump (14) and a corresponding flow path system to perform titration of a sample;
and step 9: and in the sample titration process, a camera (20) is started, the state of the sample in the sample cup (16) is photographed, the color change of a sample photo is analyzed through software, the photographing and the software picture analysis are carried out while titration is carried out, the titration is stopped when the color of the sample becomes pink, and the titration amount of the injection pump I is recorded to obtain detection data.
9. The process of claim 8, wherein the permanganate index is measured by a full-automatic permanganate index measuring apparatus comprising: the first solution (15) is a potassium permanganate solution; the second solution (18) is a sulfuric acid solution; the third solution (22) is a sodium oxalate solution.
10. The process of claim 8, wherein the permanganate index is measured by a full-automatic permanganate index measuring apparatus comprising: the automatic control can be realized by a computer control system (19) connected outside the measuring instrument, and the step 1-any step of the step 9 are realized.
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CN117761242A (en) * | 2024-02-22 | 2024-03-26 | 北京理工大学 | explosive acid value detection device capable of automatically dissolving sample |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN117761242A (en) * | 2024-02-22 | 2024-03-26 | 北京理工大学 | explosive acid value detection device capable of automatically dissolving sample |
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