CN117949682A - Full-automatic sample injection-cleaning device for cavity enhanced Raman spectrum detection - Google Patents
Full-automatic sample injection-cleaning device for cavity enhanced Raman spectrum detection Download PDFInfo
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- CN117949682A CN117949682A CN202311701878.3A CN202311701878A CN117949682A CN 117949682 A CN117949682 A CN 117949682A CN 202311701878 A CN202311701878 A CN 202311701878A CN 117949682 A CN117949682 A CN 117949682A
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- 238000001514 detection method Methods 0.000 title claims abstract description 77
- 238000001237 Raman spectrum Methods 0.000 title claims abstract description 63
- 238000004140 cleaning Methods 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 57
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 39
- 238000007599 discharging Methods 0.000 claims abstract description 28
- 239000002699 waste material Substances 0.000 claims abstract description 24
- 150000003839 salts Chemical class 0.000 claims abstract description 6
- 239000012086 standard solution Substances 0.000 claims description 19
- 238000001069 Raman spectroscopy Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000011033 desalting Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 abstract description 13
- 239000007924 injection Substances 0.000 abstract description 13
- 239000000523 sample Substances 0.000 description 70
- 239000000243 solution Substances 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000012488 sample solution Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000010612 desalination reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention relates to the technical field of Raman spectrum automatic detection, in particular to a full-automatic sample injection-cleaning device for cavity enhanced Raman spectrum detection, which comprises an automatic sample injection unit, a peristaltic pump, a Raman spectrum detection pool and an automatic sample discharge unit, wherein the automatic sample injection unit comprises a sample bottle, a salt removal bottle and a first control device, the sample bottle is connected with the first control device through a pipeline, and the salt removal bottle is connected with the first control device through a pipeline; the peristaltic pump is connected with the first control device through a pipeline; the sample inlet of the Raman spectrum detection pool is connected with a peristaltic pump through a pipeline; the automatic sample discharging unit is connected with the sample discharging port of the Raman spectrum detection pool through a pipeline, and is used for discharging the sample waste liquid in the pipeline of the detection device.
Description
Technical Field
The invention relates to the technical field of Raman spectrum automatic detection, in particular to a full-automatic sample injection-cleaning device for cavity enhanced Raman spectrum detection.
Background
The cavity enhanced Raman spectrum is used as a high-sensitivity enhanced form of the Raman spectrum, has stronger signal intensity and lower detection limit, can be used for rapid detection and analysis of trace substances, however, in the practical application of the cavity enhanced Raman spectrum, the problems of sample injection operation and system cleaning are still bottlenecks for restricting the automatic application of the cavity enhanced Raman spectrum, and the traditional sample injection method generally needs manual operation, is time-consuming and is easily influenced by human errors, so that the experimental efficiency and consistency are limited. Secondly, in the traditional experimental process, residual solution in the Raman spectrum detection pool may influence the accuracy of subsequent tests, and meanwhile, a capillary tube possibly used in the cavity enhanced Raman spectrometer may cause the problem of unsmooth liquid discharge, so that residual liquid cannot be effectively discharged, and the accuracy of the subsequent tests is influenced.
Disclosure of Invention
The invention aims to provide a full-automatic sample injection-cleaning device for cavity enhanced Raman spectrum detection, so as to solve the problems. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the application provides a full-automatic sample injection-cleaning device for cavity enhanced Raman spectrum detection, which comprises an automatic sample injection unit, a peristaltic pump, a Raman spectrum detection pool and an automatic sample discharge unit, wherein the automatic sample injection unit comprises a sample bottle, a desalting water bottle and a first control device, the sample bottle is connected with the first control device through a pipeline, and the desalting water bottle is connected with the first control device through a pipeline; the peristaltic pump is connected with the first control device through a pipeline; the sample inlet of the Raman spectrum detection tank is connected with the peristaltic pump through a pipeline; the automatic sample discharging unit is connected with a sample discharging port of the Raman spectrum detection pool through a pipeline and is used for discharging sample waste liquid in a pipeline of the detection device.
Optionally, the first control device is connected with at least two standard solution bottles, and the standard solution bottles are connected with the first control device through pipelines.
Optionally, the first control device is a four-way valve, and four inlets of the four-way valve are respectively connected with the standard solution bottle, the sample bottle and the desalination water bottle.
Optionally, a second control device and an air pump are arranged between the peristaltic pump and the sample inlet of the raman spectrum detection tank, and the air pump is connected with the second control device through a pipeline.
Optionally, the second control device is a first two-way valve, and the peristaltic pump and the air pump are connected with two inlets of the first two-way valve through a pipeline.
Optionally, the upper outlet of the raman spectrum detection tank is connected with a liquid level sensor and a third control device, the liquid level sensor is arranged between the upper outlet of the raman spectrum detection tank and the third control device, one end of the third control device is connected with the liquid level sensor, and the other end of the third control device is connected with the external environment of the detection device.
Optionally, the third control device is a normally open electromagnetic two-way valve.
Optionally, the automatic sample outlet unit comprises a fourth control device, a diaphragm pump and a waste liquid bottle, wherein the fourth control device is connected with a sample outlet of the raman spectrum detection tank through a pipeline, and the diaphragm pump is connected with the waste liquid bottle through a pipeline and the fourth control device.
Optionally, the fourth control device is a second two-way valve, two inlets of the second two-way valve are respectively connected with the waste liquid bottle and the diaphragm pump, one end of the diaphragm pump is connected with the second two-way valve, and the other end of the diaphragm pump is connected with the waste liquid bottle.
Optionally, the automatic sample feeding unit, the automatic sample discharging unit, the peristaltic pump and the raman spectrum detection tank are electrically connected with a control terminal, and the control terminal is used for controlling actions of the automatic sample feeding unit, the automatic sample discharging unit, the peristaltic pump and the raman spectrum detection tank.
The beneficial effects of the invention are as follows:
According to the invention, an operator can flexibly select a sample, a standard solution or a cleaning solution to sample according to the experimental requirement by arranging the automatic sample injection unit, so that the experimental operation flow is greatly simplified, the convenience and the efficiency of operation are improved, the sample output by the automatic sample injection unit is input into the Raman spectrum detection pool to operate by the peristaltic pump, the cleaning or experimental sample waste liquid in the whole system is discharged by the automatic sample discharge unit, the cleanliness of the whole system in the next experiment is ensured, the problems of complicated sample injection operation, no liquid level repetition, sample injection residues and the like in the cavity-enhanced Raman spectrum experiment of the traditional manual sample injection mode are solved, the automation degree of the device is improved, and the experimental preparation time is reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a full-automatic sample injection-cleaning device for cavity-enhanced raman spectroscopy according to an embodiment of the present invention.
The marks in the figure: 1. a sample bottle; 2. desalting water bottle; 3. a standard solution bottle; 4. a first control device; 5. a peristaltic pump; 6. an air pump; 7. a second control device; 8. a raman spectrum detection cell; 9. fourth control means; 10. a diaphragm pump; 11. a waste liquid bottle; 12. a liquid level sensor; 13. and a third control device.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the embodiment provides a full-automatic sample injection-cleaning device for cavity enhanced raman spectrum detection, which comprises an automatic sample injection unit, a peristaltic pump 5, a raman spectrum detection tank 8 and an automatic sample discharge unit, wherein the automatic sample injection unit comprises a sample bottle 1, a salt removal bottle 2 and a first control device 4, the sample bottle 1 is connected with the first control device 4 through a pipeline, and the salt removal bottle 2 is connected with the first control device 4 through a pipeline; the peristaltic pump 5 is connected with the first control device 4 through a pipeline; the sample inlet of the Raman spectrum detection tank 8 is connected with the peristaltic pump 5 through a pipeline; the automatic sample discharging unit is connected with the sample discharging port of the Raman spectrum detection tank 8 through a pipeline, the automatic sample discharging unit is used for discharging sample waste liquid in the pipeline of the detection device, in the prior art, residual solution in the Raman spectrum detection tank 8 may influence the accuracy of subsequent tests, meanwhile, the problems of unsmooth liquid discharge caused by a thin pipe which needs to be used in the cavity enhanced Raman spectrometer affect the degree of automation of the cavity enhanced Raman spectrometer, therefore, an operator can flexibly select samples, standard solutions or cleaning solutions for sample feeding according to experimental needs by arranging the automatic sample discharging unit, the experimental operation flow is greatly simplified, the cleaning or experimental sample waste liquid in the whole system is discharged through the automatic sample discharging unit, the cleanliness of the whole system in the next experiment is ensured, and the degree of automation of the device is effectively improved.
In a specific embodiment of the disclosure, a first control device 4 is connected with at least two standard solution bottles 3, the standard solution bottles 3 are connected with the first control device 4 through pipelines, the first control device 4 is a four-way discharge valve, four inlets of the four-way discharge valve are respectively connected with the standard solution bottles 3, the sample bottles 1 and the desalting water bottles 2, and the accuracy of detection can be effectively improved by setting the standard solution bottles 3, and the specific process is as follows: step 1, opening an inlet of a four-way valve standard solution bottle 3, closing an automatic sample outlet unit, and inputting standard solution into a Raman spectrum detection pool 8 through a peristaltic pump 5 for detection operation; step 2, after the detection operation is finished, opening an automatic sample discharging unit to extract the Raman spectrum detection pool 8 and experimental waste liquid in the pipeline; step 3, opening an inlet of a desalting water bottle 2 of the four-way discharge valve, closing an automatic sample outlet unit, and inputting desalted water into a Raman spectrum detection pool 8 through a peristaltic pump 5 for cleaning operation; and 4, comparing and calibrating the sample experimental data with the standard solution experimental data, wherein if the standard solution experimental data with other concentrations are needed, opening the inlet of the standard solution 3 of the four-way valve, and repeating the steps.
In a specific embodiment of the disclosure, a second control device 7 and an air pump 6 are disposed between a peristaltic pump 5 and a sample inlet of a raman spectrum detection tank 8, the air pump 6 is connected with the second control device 7 through a pipeline, the second control device 7 is a first two-way exhaust valve, the peristaltic pump 5 and the air pump 6 are connected with two inlets of the first two-way exhaust valve through a pipeline, in this embodiment, after the desalted water cleaning operation of the detection device is completed, the four-way exhaust valve and the peristaltic pump 5 are further required to be closed, the inlet connected with the first two-way exhaust valve and the air pump 6 is opened, and meanwhile, the air pump 6 is opened to blow out residual liquid in the raman spectrum detection tank 8 and a liquid outlet pipeline, so that the accuracy of a test is ensured to be influenced by no residual liquid in the raman spectrum detection tank 8 and the pipeline.
In a specific embodiment of the disclosure, an upper outlet of the raman spectrum detection tank 8 is connected with a liquid level sensor 12 and a third control device 13, the liquid level sensor 12 is disposed between the upper outlet of the raman spectrum detection tank 8 and the third control device 13, one end of the third control device 13 is connected with the liquid level sensor 12, the other end of the third control device 13 is connected with an external environment of the detection device, the third control device 13 is a normally open electromagnetic two-way valve, in this embodiment, the liquid level sensor 12 can detect the liquid level in the raman spectrum detection tank 8, so that the start and stop of the peristaltic pump 6 can be judged through the liquid level height in the raman spectrum detection tank 8, after the electromagnetic two-way valve is opened, the liquid remaining in the raman spectrum detection tank 8 can be blown out by the air pump 6, so that the liquid is discharged to the external environment of the detection device, air cleaning is completed, and the experiment is prevented from being interfered.
In a specific embodiment of the disclosure, the automatic sample discharging unit includes a fourth control device 9, a diaphragm pump 10 and a waste liquid bottle 11, the fourth control device 9 is connected to a sample outlet of the raman spectrum detection tank 8 through a pipeline, the diaphragm pump 10 is connected to the waste liquid bottle 11 through a pipeline and the fourth control device 9 is a second two-way discharge valve, two inlets of the second two-way discharge valve are respectively connected to the waste liquid bottle 11 and the diaphragm pump 10, one end of the diaphragm pump 10 is connected to the second two-way discharge valve, the other end of the diaphragm pump 10 is connected to the waste liquid bottle 11, when the sample discharging is required after the detection is completed, at this time, the diaphragm pump 10 and the second two-way discharge valve are opened to pump out the raman spectrum detection tank 8 and the residual waste liquid in the pipeline, and the sample discharged through the waste liquid bottle 11 is recovered, it should be noted that a complete sample detection flow is specifically: step 1, respectively filling a sample to be detected, desalted water and standard solution into corresponding bottles, and opening a control terminal power supply and control software, wherein the flow rates of the peristaltic pump 5 and the diaphragm pump 10 and the like can be preset on the software; step 2, opening an inlet of a sample bottle 1 with a four-way discharge valve, a first two-way discharge valve and an inlet of a peristaltic pump 5, starting the peristaltic pump 5, stopping the peristaltic pump 5 after a liquid level sensor 12 detects the liquid level, closing the four-way discharge valve, opening a second two-way discharge valve, opening a diaphragm pump 10, discharging the solution in a Raman spectrum detection pool 8, and finishing the rinsing of the Raman spectrum detection pool 8 with the sample solution; step 3, after the sample solution is rinsed in the Raman spectrum detection pool 8, closing a second two-way valve and a diaphragm pump 10, opening an electromagnetic two-way valve, and opening an air pump 6 to blow out residual liquid in the Raman spectrum detection pool 8 and a sample outlet part pipeline to finish air cleaning; step 4, after air cleaning is completed, opening an inlet of a sample bottle 1 and a peristaltic pump 5 of the four-way valve, measuring the liquid level state of liquid in a Raman spectrum detection pool 8 through a liquid level sensor 12, stopping the peristaltic pump 5 after the liquid level is full, closing the four-way valve, and starting a sample solution Raman detection experiment; step 5, after the sample solution detection experiment is completed, opening a diaphragm pump 10 and a second two-way discharge valve, and pumping out the Raman spectrum detection pool 8 and experimental waste liquid in a pipeline to complete the sample discharge; step 6, opening an inlet of a desalination water bottle 2 of a four-way discharge valve and an inlet of a peristaltic pump 5 of a first two-way discharge valve, closing a second two-way discharge valve, stopping the peristaltic pump 5 after the liquid level sensor 12 detects the liquid level, closing the four-way discharge valve, opening the second two-way discharge valve, opening a diaphragm pump 10, discharging waste liquid, and performing the same process again to finish the desalination water cleaning of the experimental device; closing the second two-way valve and the diaphragm pump 10 after cleaning is completed; and 7, closing the four-way discharge valve and the peristaltic pump 5, and opening the air pump 6 to blow out residual liquid in the Raman spectrum detection pool 8 and the liquid outlet pipeline.
In one embodiment of the present disclosure, the automatic sample feeding unit, the automatic sample discharging unit, the peristaltic pump 5 and the raman spectrum detection cell 8 are electrically connected with a control terminal, and the control terminal is used for controlling the actions of the automatic sample feeding unit, the automatic sample discharging unit, the peristaltic pump 5 and the raman spectrum detection cell 8.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. A full-automatic sample injection-cleaning device for cavity enhanced raman spectroscopy detection, comprising:
The automatic sample feeding unit comprises a sample bottle (1), a salt removing bottle (2) and a first control device (4), wherein the sample bottle (1) is connected with the first control device (4) through a pipeline, and the salt removing bottle (2) is connected with the first control device (4) through a pipeline;
a peristaltic pump (5), wherein the peristaltic pump (5) is connected with the first control device (4) through a pipeline;
The sample inlet of the Raman spectrum detection pool (8) is connected with the peristaltic pump (5) through a pipeline; and
The automatic sample discharging unit is connected with a sample discharging port of the Raman spectrum detection pool (8) through a pipeline and is used for discharging sample waste liquid in a pipeline of the detection device.
2. The full-automatic sample injection-cleaning device for cavity enhanced raman spectroscopy according to claim 1, wherein: the first control device (4) is connected with at least two standard solution bottles (3), and the standard solution bottles (3) are connected with the first control device (4) through pipelines.
3. The full-automatic sample injection-cleaning device for cavity enhanced raman spectroscopy according to claim 2, wherein: the first control device (4) is a four-way discharge valve, and four inlets of the four-way discharge valve are respectively connected with the standard solution bottle (3), the sample bottle (1) and the desalting water bottle (2).
4. The full-automatic sample injection-cleaning device for cavity enhanced raman spectroscopy according to claim 1, wherein: a second control device (7) and an air pump (6) are arranged between the peristaltic pump (5) and the sample inlet of the Raman spectrum detection tank (8), and the air pump (6) is connected with the second control device (7) through a pipeline.
5. The full-automatic sample injection-cleaning device for cavity enhanced raman spectroscopy according to claim 4, wherein: the second control device (7) is a first two-way discharge valve, and the peristaltic pump (5) and the air pump (6) are connected with two inlets of the first two-way discharge valve through a pipeline.
6. The full-automatic sample injection-cleaning device for cavity enhanced raman spectroscopy according to claim 1, wherein: the upper outlet of the Raman spectrum detection tank (8) is connected with a liquid level sensor (12) and a third control device (13), the liquid level sensor (12) is arranged between the upper outlet of the Raman spectrum detection tank (8) and the third control device (13), one end of the third control device (13) is connected with the liquid level sensor (12), and the other end of the third control device (13) is connected with the external environment of the detection device.
7. The full-automatic sample injection-cleaning device for cavity enhanced raman spectroscopy according to claim 6, wherein: the third control device (13) is a normally open electromagnetic two-way valve.
8. The full-automatic sample injection-cleaning device for cavity enhanced raman spectroscopy according to claim 1, wherein: the automatic sample discharging unit comprises a fourth control device (9), a diaphragm pump (10) and a waste liquid bottle (11), wherein the fourth control device (9) is connected with a sample discharging port of the Raman spectrum detection tank (8) through a pipeline, and the diaphragm pump (10) is connected with the waste liquid bottle (11) through a pipeline and the fourth control device (9).
9. The full-automatic sample-and-wash device for cavity enhanced raman spectroscopy according to claim 8, wherein: the fourth control device (9) is a second two-way exhaust valve, two inlets of the second two-way exhaust valve are respectively connected with the waste liquid bottle (11) and the diaphragm pump (10), one end of the diaphragm pump (10) is connected with the second two-way exhaust valve, and the other end of the diaphragm pump (10) is connected with the waste liquid bottle (11).
10. The full-automatic sample injection-cleaning device for cavity enhanced raman spectroscopy according to claim 1, wherein: the automatic sample feeding unit, the automatic sample discharging unit, the peristaltic pump (5) and the Raman spectrum detection pool (8) are electrically connected with a control terminal, and the control terminal is used for controlling the automatic sample feeding unit, the automatic sample discharging unit, the peristaltic pump (5) and the Raman spectrum detection pool (8) to act.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311701878.3A CN117949682A (en) | 2023-12-12 | 2023-12-12 | Full-automatic sample injection-cleaning device for cavity enhanced Raman spectrum detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311701878.3A CN117949682A (en) | 2023-12-12 | 2023-12-12 | Full-automatic sample injection-cleaning device for cavity enhanced Raman spectrum detection |
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| Publication Number | Publication Date |
|---|---|
| CN117949682A true CN117949682A (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311701878.3A Pending CN117949682A (en) | 2023-12-12 | 2023-12-12 | Full-automatic sample injection-cleaning device for cavity enhanced Raman spectrum detection |
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| Country | Link |
|---|---|
| CN (1) | CN117949682A (en) |
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2023
- 2023-12-12 CN CN202311701878.3A patent/CN117949682A/en active Pending
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