CN112033762A - Portable air sampler and sampling method thereof - Google Patents
Portable air sampler and sampling method thereof Download PDFInfo
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- CN112033762A CN112033762A CN202010228846.6A CN202010228846A CN112033762A CN 112033762 A CN112033762 A CN 112033762A CN 202010228846 A CN202010228846 A CN 202010228846A CN 112033762 A CN112033762 A CN 112033762A
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- 238000005070 sampling Methods 0.000 title claims abstract description 149
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 239000002245 particle Substances 0.000 claims description 23
- 238000005086 pumping Methods 0.000 claims description 2
- 238000012864 cross contamination Methods 0.000 abstract description 5
- 239000003570 air Substances 0.000 description 121
- 239000000523 sample Substances 0.000 description 9
- 239000013618 particulate matter Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 208000007407 African swine fever Diseases 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 238000002965 ELISA Methods 0.000 description 1
- 201000011001 Ebola Hemorrhagic Fever Diseases 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 238000007397 LAMP assay Methods 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 201000003176 Severe Acute Respiratory Syndrome Diseases 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a portable air sampler and a sampling method thereof, wherein the sampler comprises: the device comprises a host, a sampling head and a collecting pipe; the sampling head is provided with a sampling head air inlet and a sampling head air outlet, and an air outlet channel is arranged in the sampling head and is used for communicating the sampling pipe with the sampling head air outlet; the collecting pipe is of a tubular structure with one open end, and sampling liquid is arranged in the collecting pipe; the sampler provided by the invention can effectively improve the collection efficiency of the sampler, improve the concentration of the sample liquid, is convenient to carry and can be detachably replaced or cleaned, and the cross contamination of two adjacent samplings can be avoided; the sampling method of the invention has simple operation and high sampling speed.
Description
Technical Field
The invention relates to the technical field of particulate matter sampling, in particular to a portable air sampler and a sampling method thereof.
Background
In recent years, the problem of environmental air pollution in China is aggravated, the health of residents is seriously harmed, and the problem of monitoring and treating the environmental air is not moderate. There are a large number of particulate matter in the ambient air, such as bioaerosol (bacteria, viruses, fungi, etc.) particles and PM2.5 particles, among others. Studies have shown that many health problems are associated with air pollutants, especially with exposure to bioaerosols. The generation, diffusion and transmission of bioaerosols are likely to cause outbreaks of large-scale infectious diseases such as SARS, H1N1, Ebola, African swine fever, etc. The method can efficiently and quickly collect the microbial particles in the air, and is an important link for researching bioaerosol. With the development of rapid detection technologies, such as PCR, nucleic acid loop-mediated isothermal amplification technology, and enzyme-linked immunosorbent assay, rapid sampling equipment is urgently needed to sample bioaerosol and identify bioaerosol by matching with rapid detection equipment.
At present, Bertin Coriolis samplers based on a cyclone centrifugal principle and biosampler (SKC) samplers based on a liquid impact principle have the problems of inconvenience in carrying, use, disassembly, cleaning and the like, are long in sampling time and large in sample liquid amount, can perform subsequent detection only by concentration treatment, and are poor in timeliness.
Disclosure of Invention
In view of this, the invention provides a portable air sampler, which can effectively improve the collection efficiency of the sampler, improve the concentration of a sample solution, is convenient to carry, can be detachably replaced or cleaned, and can avoid cross contamination between two adjacent samplings.
The technical scheme of the portable air sampler is as follows: a portable air sampler comprising: the device comprises a host, a sampling head and a collecting pipe;
the sampling head is provided with a sampling head air inlet and a sampling head air outlet, and an air outlet channel is arranged in the sampling head and is used for communicating the sampling pipe with the sampling head air outlet;
the collecting pipe is of a tubular structure with one open end, and sampling liquid is arranged in the collecting pipe;
the connection relation of the sampler is as follows: one end of the sampling head is detachably butted with the open end of the collecting pipe, the butted part of the sampling head and the collecting pipe is sealed, more than one sampling head air inlet is formed in the sampling head, the sampling head air inlet is communicated with the interior of the collecting pipe through an air inlet channel, air doped with particles enters the collecting pipe from the sampling head air inlet and the air inlet channel, the particles are dissolved in a sampling solution, and the gas and the particles are separated and escape from the sampling solution; one end of the air outlet channel extending into the collecting pipe is an inlet end, the inlet end is lower than the lower end face of the air inlet channel and higher than the liquid level of the sampling liquid in the collecting pipe, and is detachably connected with the host through the air outlet of the sampling head, wherein the joint of the air outlet of the sampling head and the host is sealed; the main machine is used for pumping out the gas in the collecting pipe.
Preferably, the host includes: the air pump is connected with the air outlet of the main machine;
the air inlet of the host machine is arranged on the wall surface of the shell, the air inlet of the host machine is detachably connected with the air outlet of the sampling head so as to realize the connection of the sampling head and the host machine, the air guide pipe is arranged in the cavity in the shell, two ends of the air guide pipe are respectively communicated with the air inlet of the host machine and the air outlet of the host machine, the pipeline of the air guide pipe is provided with an air pump, and the air pump sucks the air in the collection pipe from the air inlet of the host; the control component is connected with the air pump and used for controlling the starting or the closing of the air pump and setting the working time of the air pump.
Preferably, the control assembly comprises: the device comprises a power supply, a circuit control board and a touch screen; the touch screen is arranged on the wall surface of the shell, and the power supply and the circuit control board are arranged in the inner cavity of the shell; the circuit control board is provided with a control circuit, and the power supply is connected with the control circuit and used for supplying power to the control circuit; the control circuit links to each other with the air pump, and the control circuit includes: the starting control circuit and the closing control circuit are respectively used for controlling the starting and the closing of the air pump; the touch screen is connected with the control circuit, and is provided with a start key, a close key and a display screen, wherein the start key is connected with the start control circuit, the close key is connected with the close control circuit, when the start key is pressed, the start control circuit on the circuit control board controls the air pump to start, and when the close key is pressed, the close control circuit on the circuit control board controls the air pump to close; the display screen is used for displaying the working time of the air pump from starting to closing or is used for setting the working time of the air pump after starting so as to control the air pump to be automatically closed.
Preferably, the host further comprises: the handle, handle and shell integrated into one piece make things convenient for the use and the carrying of sample thief.
Preferably, the end of the sampling head connected with the collection tube is of a cylindrical structure, so that the sampling head can be conveniently connected with the collection tube.
Preferably, the air inlet of the sampling head is arc-shaped, and the air inlet channel is spiral.
Preferably, the sampling head is further provided with a handle, and the handle is arranged on the sampling head and serves as a handheld operation end of the sampling head.
Preferably, the host further comprises: the tripod connecting piece is arranged at the bottom of the main machine and is used for being connected with a tripod.
Preferably, the collection tube is a transparent tube body, and the host is provided with a collection window for observing the sample liquid collected by the collection liquid in the collection tube in real time.
The invention provides a sampling method of a portable air sampler, which is simple to operate and high in sampling speed.
The technical scheme of the sampling method of the portable air sampler comprises the following steps: a sampling method of a portable air sampler comprises the following steps:
setting sampling time, starting a host machine to work, forming negative pressure in a collecting pipe, and enabling air doped with particles to enter sampling liquid of the collecting pipe from an air inlet of a sampling head;
air doped with particles enters the collecting pipe from the air inlet of the sampling head and the air inlet channel, the particles are dissolved in the sampling liquid, gas is separated from the particles, and the separated gas flows into the host machine from the air outlet of the sampling head through the air outlet channel and is discharged; and stopping the host machine until the sampling time is finished, and finishing one-time sampling.
Has the advantages that:
(1) the portable air sampler provided by the invention can effectively improve the collection efficiency of the sampler, improve the concentration of the sample liquid, is convenient to carry, can be detachably replaced or cleaned, and can avoid cross contamination of two adjacent samplings.
(2) The sampling method of the portable air sampler is simple to operate and high in sampling speed.
Drawings
FIG. 1 is a schematic diagram of a sampler according to the present invention.
FIG. 2 is a schematic view of the structure of the sampling head and the collection tube in the sampler of the present invention.
The device comprises a main machine air inlet, a main machine air guide pipe, a triangular frame connecting piece, an air pump, a main machine air outlet, a power supply, a circuit control board, a touch screen, a handle, a sampling head, a collecting pipe, a sealing ring, a sampling head air inlet, a handle, a sampling pipe, a sealing ring, a sampling head air inlet, a sampling head air outlet, a sampling head air inlet, a sampling.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
Example 1:
the embodiment provides a portable air sampler, can effectively improve sample thief collection efficiency, improves sample liquid concentration, and sample thief portable can dismantle change or wash, can avoid the cross contamination of adjacent twice sampling.
As shown in fig. 1 and 2, the sampler includes: the main machine comprises a main machine, a sampling head 10 and a collecting pipe 11;
the host computer includes: the device comprises a shell, a host air inlet 1, an air guide pipe 2, an air pump 4, a host air outlet 5, a power supply 6, a circuit control board 7, a touch screen 8 and a handle 9;
the sampling head 10 is provided with a sampling head air inlet 13, a handle 14 and a sampling head air outlet 16, and an air outlet channel 15 is arranged in the sampling head and is used for communicating the collecting pipe 11 with the sampling head air outlet 16;
the collection tube 11 is a tubular structure with an opening at one end, and sampling liquid is arranged in the collection tube.
The connection relation of the sampler is as follows: one end of the sampling head 10 is of a cylindrical structure, the other end of the sampling head is provided with a handle 14, and the handle 14 is used for providing a handheld operation end so as to facilitate the disassembly and assembly of the sampling head 10 and the collection tube 11; the end of the cylindrical structure of the sampling head 10 is detachably butted with the open end of the collecting pipe 11, a sealing ring 12 is arranged at the butt joint of the end and the open end to realize sealing, more than one arc-shaped sampling head air inlet 13 is arranged on the upper end surface of the cylindrical structure of the sampling head 10 along the circumferential direction, the sampling head air inlet 13 is communicated with the interior of the collecting pipe 11 through an air inlet channel (which is spiral), air doped with particles enters from the sampling head air inlet 13 and flows into the collecting pipe 11 through the air inlet channel, the particles are dissolved in the sampling liquid, and the gas and the particles are separated and escape from the sampling liquid; the gas outlet channel 15 is arranged along a central axis of the end where the cylindrical structure of the sampling head 10 is located, the inlet end (lower than the plane of the gas inlet 13 of the sampling head and higher than the liquid level of the sampling liquid in the collection tube 11, so that the sampling liquid in the collection tube 11 is prevented from being sucked out from the gas outlet channel 15 and gas is ensured to flow out from the gas outlet channel 15 during sampling) of the gas outlet channel 15 extends into the collection tube 11, the outlet end (higher than the plane of the gas inlet 13 of the sampling head) is communicated with the gas guide tube 2 through the gas outlet 16 of the sampling head and the gas inlet 1 of the host machine in sequence and is used for guiding the gas in the collection tube 11 into the host machine, wherein the gas outlet 16 of the sampling head is detachably connected with the gas inlet 1;
the air inlet 1 of the host is arranged on the wall surface of the shell, and the handle 9 and the shell are integrally formed, so that the sampler is convenient to carry; the air guide pipe 2 is arranged in the cavity inside the shell, two ends of the air guide pipe are respectively communicated with the air inlet 1 and the air outlet 5 of the host machine, the pipeline of the air guide pipe 2 is provided with an air pump 4, the inlet end of the air pump 4 is communicated with the air inlet 1 of the host machine, the outlet end of the air pump 4 is communicated with the air outlet 5 of the host machine, and the air pump 4 is used for sucking the air in the collection pipe 11 into the air guide pipe and discharging the air from the air outlet;
the wall surface of the shell is also provided with a touch screen 8, and the inner cavity of the shell is also provided with a power supply 6 and a circuit control board 7; the circuit control board 7 is provided with a control circuit, and the power supply 6 is connected with the control circuit and used for supplying power to the control circuit; the control circuit is connected with the air pump 4, and the control circuit includes: the start control circuit and the close control circuit are respectively used for controlling the start and the close of the air pump 4; the touch screen 8 is connected with the control circuit, and is provided with a start key, a close key and a display screen, wherein the start key is connected with the start control circuit, the close key is connected with the close control circuit, when the start key is pressed, the start control circuit on the circuit control board 7 controls the air pump 4 to start, and when the close key is pressed, the close control circuit on the circuit control board 7 controls the air pump 4 to close; the display screen is used for displaying the working time of the air pump 4 from starting to closing or is used for setting the working time (corresponding to the sampling time of the sampling device) of the air pump 4 after starting so as to control the air pump 4 to automatically close.
The working principle of the sampler is as follows: due to the detachable connection of the host, the sampling head 10 and the collection tube 11, the disassembly and assembly of the sampler are convenient, the sterilization of the sampling part (the sampling head 10 and the collection tube 11) is convenient, and the cross contamination of two adjacent samplings is avoided; after the air pump 4 starts, take out the gas in air duct 2 and the collection pipe 11, form the negative pressure in the collection pipe 11, the air that is doped with the particulate matter passes through sampling head air inlet 13 and gets into collection pipe 11 and forms whirl A (rotatory air current), the overwhelming majority of whirl A is the spiral downward flow along the pipe wall of collection pipe 11, particulate matter in whirl A produces centrifugal force at rotatory in-process, throw the particulate matter that density is greater than gas to the pipe wall, it is rotatory along with whirl A to gather collection liquid in the pipe 11, pipe wall at collection pipe 11 forms whirl B (rotatory liquid), whirl B that particulate matter collision collection liquid in whirl A formed is caught by the collection liquid, gas is taken out by air pump 4 after looping through outlet channel 15 and air duct 2.
Example 2:
on the basis of embodiment 1, the host further includes: the tripod connecting piece 3, the tripod connecting piece 3 sets up in the host computer bottom for be connected with the tripod, need not additionally set up the tripod connecting piece, use more convenient and fast.
Example 3:
on the basis of embodiment 1 or 2, the power supply 6 adopts a rechargeable lithium battery, and can charge the power supply at any time to ensure continuous power supply.
Example 4:
on the basis of embodiment 1 or 2 or 3, the selection principle of the air pump 4 follows: the flow is big, the velocity of flow is stable, small, light in weight and be convenient for integrate etc. and specific control range is: the flow is 15-30L/min, the voltage is 12-24V, and the current is 2-5A, so that the requirements of stable and efficient work and convenient integration can be met.
Example 5:
on the basis of the embodiment 1 or 2 or 3 or 4, the collection tube 11 is a transparent tube body, and the host is provided with a collection window for observing the sample liquid collected by the collection liquid in the collection tube 11 in real time.
Example 6:
on the basis of the embodiment 1 or 2 or 3 or 4 or 5, the whole machine is made of plastic, so that the whole machine is light in weight, light and portable.
Example 7:
the embodiment provides a sampling method of a portable air sampler, and the sampling method is simple to operate and high in sampling speed.
The sampling method adopts the sampler in the embodiment 1, and the sampling method comprises the following steps:
setting sampling time through the touch screen 8, clicking a start key, starting the air pump 4 by the control circuit to work, forming negative pressure in the collection pipe 11 by the air pump 4 through the air guide pipe 2, and allowing air doped with particulate matters to enter sampling liquid of the collection pipe 11 from the air inlet 13 of the sampling head;
the particles in the air doped with the particles are separated from the gas (the particles are dissolved in the sampling liquid, and the gas is not dissolved in the sampling liquid), the gas flows into the main machine of the sampler from the gas outlet 16 of the sampling head through the gas outlet channel 15, and then is discharged through the gas guide tube 2 and the gas pump 4 in sequence; and (4) controlling the air pump 4 to stop by the control circuit until the sampling time is finished, and finishing the one-time sampling.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A portable air sampler, comprising: the device comprises a host, a sampling head (10) and a collecting pipe (11);
the sampling head (10) is provided with a sampling head air inlet (13) and a sampling head air outlet (16), and an air outlet channel (15) is arranged in the sampling head and is used for communicating the collecting pipe (11) with the sampling head air outlet (16);
the collecting pipe (11) is of a tubular structure with one open end, and sampling liquid is arranged in the collecting pipe;
the connection relation of the sampler is as follows: one end of the sampling head (10) is detachably butted with the open end of the collecting pipe (11), the butted position of the sampling head and the collecting pipe is sealed, more than one sampling head air inlet (13) is formed in the sampling head (10), the sampling head air inlet (13) is communicated with the interior of the collecting pipe (11) through an air inlet channel, air doped with particles enters the collecting pipe (11) from the sampling head air inlet (13) and the air inlet channel, the particles are dissolved in a sampling solution, and gas is separated from the particles and escapes the sampling solution; one end of the air outlet channel (15) extending into the collection pipe (11) is an inlet end, the inlet end is lower than the lower end face of the air inlet channel and higher than the liquid level of the sampling liquid in the collection pipe (11), and is detachably connected with the host machine through a sampling head air outlet (16), wherein the connection part of the sampling head air outlet (16) and the host machine is sealed; the main machine is used for pumping out the gas in the collection pipe (11).
2. The portable air sampler of claim 1, wherein the host comprises: the device comprises a shell, a main machine air inlet (1), an air guide pipe (2), an air pump (4), a main machine air outlet (5) and a control assembly;
the air inlet (1) of the host is arranged on the wall surface of the shell, the air inlet (1) of the host is detachably connected with the air outlet (16) of the sampling head so as to realize the connection of the sampling head (10) and the host, the air duct (2) is arranged in the cavity inside the shell, the two ends of the air duct are respectively communicated with the air inlet (1) of the host and the air outlet (5) of the host, the pipeline of the air duct (2) is provided with an air pump (4), and the air pump (4) sucks the air in the collecting pipe (11) from the air inlet (1) of the host and discharges the air from the air outlet (5; the control component is connected with the air pump (4) and is used for controlling the starting or the closing of the air pump (4) and setting the working time of the air pump (4).
3. The portable air sampler of claim 2, wherein the control assembly comprises: the device comprises a power supply (6), a circuit control board (7) and a touch screen (8); the touch screen (8) is arranged on the wall surface of the shell, and the power supply (6) and the circuit control board (7) are arranged in an inner cavity of the shell; the circuit control board (7) is provided with a control circuit, and the power supply (6) is connected with the control circuit and used for supplying power to the control circuit; the control circuit is connected with the air pump (4), and the control circuit comprises: the starting control circuit and the closing control circuit are respectively used for controlling the starting and the closing of the air pump (4); the touch screen (8) is connected with the control circuit, a start key, a close key and a display screen are arranged on the touch screen, the start key is connected with the start control circuit, the close key is connected with the close control circuit, when the start key is pressed, the start control circuit on the circuit control board (7) controls the air pump (4) to start, and when the close key is pressed, the close control circuit on the circuit control board (7) controls the air pump (4) to close; the display screen is used for displaying the working time of the air pump (4) from starting to closing or is used for setting the working time of the air pump (4) after starting so as to control the air pump (4) to be automatically closed.
4. The portable air sampler of claim 2, wherein the host further comprises: the handle (9) and the shell are integrally formed, so that the sampler is convenient to use and carry.
5. The portable air sampler of claim 1 wherein the end of the sampling head (10) connected to the collection tube (11) is of cylindrical configuration to facilitate its connection to the collection tube (11).
6. The portable air sampler of claim 5 wherein the sampling head air inlet (13) is arcuate and the air inlet passage is helical.
7. The portable air sampler as recited in claim 1, further comprising a handle (14) disposed on the sampling head (10), the handle (14) being disposed on the sampling head (10) as a hand-held operative end of the sampling head (10).
8. The portable air sampler of claim 1, wherein the host further comprises: the tripod connecting piece (3) is arranged at the bottom of the main machine and used for being connected with a tripod.
9. The portable air sampler as recited in claim 1, wherein the collection tube (11) is a transparent tube, and the main body is provided with a collection window for real-time observation of the sample liquid collected by the collection liquid in the collection tube (11).
10. A sampling method of a portable air sampler, characterized in that it uses the portable air sampler of any one of claims 1-9 by:
setting sampling time, starting a host machine to work, forming negative pressure in a collecting pipe (11), and enabling air doped with particles to enter sampling liquid of the collecting pipe (11) from a sampling head air inlet (13);
air doped with particles enters the collecting pipe (11) from the air inlet (13) and the air inlet channel of the sampling head, the particles are dissolved in the sampling liquid, gas is separated from the particles, and the separated gas flows into the host machine from the air outlet (16) of the sampling head through the air outlet channel (15) and is discharged; and stopping the host machine until the sampling time is finished, and finishing one-time sampling.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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CN202010076687 | 2020-01-23 | ||
CN2020100766872 | 2020-01-23 | ||
CN2020201463707 | 2020-01-23 | ||
CN202020146370 | 2020-01-23 |
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CN112033762A true CN112033762A (en) | 2020-12-04 |
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CN202010228846.6A Withdrawn CN112033762A (en) | 2020-01-23 | 2020-03-27 | Portable air sampler and sampling method thereof |
CN202020416437.4U Active CN213022494U (en) | 2020-01-23 | 2020-03-27 | Portable air sampler |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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CN202020416437.4U Active CN213022494U (en) | 2020-01-23 | 2020-03-27 | Portable air sampler |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113390689A (en) * | 2021-07-14 | 2021-09-14 | 北京汇丰隆经济技术开发有限公司 | Detachable aerosol sampling device and sampling method |
CN115508158A (en) * | 2022-11-02 | 2022-12-23 | 江苏华创检测技术服务有限公司科技研发中心 | Portable foul gas fast sampler |
CN116410851A (en) * | 2023-06-08 | 2023-07-11 | 至美时代生物智能科技(北京)有限公司 | Eddy current sampling device and sampling method |
-
2020
- 2020-03-27 CN CN202010228846.6A patent/CN112033762A/en not_active Withdrawn
- 2020-03-27 CN CN202020416437.4U patent/CN213022494U/en active Active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113390689A (en) * | 2021-07-14 | 2021-09-14 | 北京汇丰隆经济技术开发有限公司 | Detachable aerosol sampling device and sampling method |
CN115508158A (en) * | 2022-11-02 | 2022-12-23 | 江苏华创检测技术服务有限公司科技研发中心 | Portable foul gas fast sampler |
CN115508158B (en) * | 2022-11-02 | 2024-02-06 | 江苏华创检测技术服务有限公司科技研发中心 | Portable malodorous gas rapid sampler |
CN116410851A (en) * | 2023-06-08 | 2023-07-11 | 至美时代生物智能科技(北京)有限公司 | Eddy current sampling device and sampling method |
CN116410851B (en) * | 2023-06-08 | 2023-09-08 | 至美时代生物智能科技(北京)有限公司 | Eddy current sampling device and sampling method |
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CN213022494U (en) | 2021-04-20 |
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