CN107991278A - Heating sampling structure based on fluorescent quenching technology trace explosive detector - Google Patents
Heating sampling structure based on fluorescent quenching technology trace explosive detector Download PDFInfo
- Publication number
- CN107991278A CN107991278A CN201711453432.8A CN201711453432A CN107991278A CN 107991278 A CN107991278 A CN 107991278A CN 201711453432 A CN201711453432 A CN 201711453432A CN 107991278 A CN107991278 A CN 107991278A
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- Prior art keywords
- heating
- sampling structure
- consumptive material
- sampling
- fluorescent quenching
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 63
- 238000005070 sampling Methods 0.000 title claims abstract description 58
- 239000002360 explosive Substances 0.000 title claims abstract description 35
- 238000010791 quenching Methods 0.000 title claims abstract description 20
- 230000000171 quenching effect Effects 0.000 title claims abstract description 20
- 238000005516 engineering process Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 43
- 230000000694 effects Effects 0.000 claims abstract description 10
- 238000004220 aggregation Methods 0.000 claims abstract description 9
- 230000002776 aggregation Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
-
- 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
-
- 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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N2021/6432—Quenching
Landscapes
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Pathology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of heating sampling structure based on fluorescent quenching technology trace explosive detector, including sampling structure, heating structure and consumptive material, the heating structure to be actively set on the outer wall of sampling structure；In the consumptive material activity insertion heating structure；Perforation is provided with three hole circular passages in the sampling structure, and the bottom of three hole circular passages is provided with water conservancy diversion aggregation infrastructure；The bottom of the sampling structure is provided with the concave station for coordinating consumptive material to be inserted into；Screw threads for fastening structure is provided between the sampling structure and heating structure；The centre position perforation of the consumptive material is provided with consumptive material passage, and consumptive material passage staggers with three hole circular passages.The installation of heating sampling structure, cleaning, the maintenance of the present invention is simple efficient, adds the collection area of explosive molecules, substantially increases the collection efficiency of explosive molecules；Eliminate the risk that ambient light is emitted directly toward consumptive material passage；Quenching efficiency of the explosive molecules to consumptive material is improved, improves the detection limit of detection indirectly.
Description
Technical field
The present invention relates to one kind to heat sampling structure, more particularly to one kind is based on fluorescent quenching technology trace explosive detector
Heating sampling structure.
Background technology
In place of existing heating sampling structure comes with some shortcomings：1) aperture of sample introduction is smaller so that collectable explosive
Molecular amounts are few；2) there are the risk of optics light leak；3) difficult clean and maintenance；4) gas circuit buffering structure is lacked.Therefore, it is necessary to one
Kind is improved to heat sampling structure to solve above-mentioned shortcoming.
The content of the invention
In order to solve the above technical problems, the present invention proposes a kind of heating based on fluorescent quenching technology trace explosive detector
Sampling structure, which solves existing the defects of heating sampling structure.
In order to achieve the above object, technical scheme is as follows：One kind is visited based on fluorescent quenching technology trace explosive
The heating sampling structure of device is surveyed, including sampling structure, heating structure and consumptive material, the heating structure are actively set on sampling structure
On outer wall；In the consumptive material activity insertion heating structure；Perforation is provided with three hole circular passages, three orifice rings in the sampling structure
The bottom of shape passage is provided with water conservancy diversion aggregation infrastructure；The bottom of the sampling structure is provided with recessed for coordinating consumptive material to be inserted into
Platform.
Preferably, screw threads for fastening structure is provided between the sampling structure and heating structure.
Preferably, circle sealing "O"-ring is provided with the inner wall of the concave station bottom.
Preferably, the bottom of the heating structure is provided with the heating plate for heating.
Preferably, the centre position of heating structure is inserted into activity to the consumptive material from below, and inserted through sealing "O"-ring
Enter in concave station.
Preferably, the centre position perforation of the consumptive material is provided with consumptive material passage, and consumptive material passage leads to three orifice ring shapes
Road staggers, not on same vertical line.
Preferably, interposition of the sampling structure by screw threads for fastening structure from top activity precession heating structure
Put.
In heating process, heating plate work, heats heating structure, is transferred heat to by screw threads for fastening structure
Sampling structure, is heated three hole circular passages, into normal working status.During sample introduction, the explosive that is evaporated out
Gas enters in sampling structure by three hole circular passages, explosive gas is buffered at water conservancy diversion aggregation infrastructure, and the gas is converged
Gather and be detected in consumptive material passage.
Beneficial effects of the present invention：The heating sampling structure based on fluorescent quenching technology trace explosive detector of the present invention
Design is uniformly distributed using three hole circular passages in sampling structure, adds the collection area of explosive molecules, and is greatly improved
The collection efficiencies of explosive molecules；Three hole circular passages of sampling structure and consumptive material passage are designed using cross structure, are eliminated
Ambient light is emitted directly toward the risk of consumptive material passage by three hole circular passages of sampling structure；Sampling structure bottom uses water conservancy diversion
Aggregation infrastructure, forms air-flow buffer passage, improves quenching efficiency of the explosive molecules to consumptive material, improve the detection of detection indirectly
Limit；Heating structure and sampling structure use separation design so that installation, cleaning, safeguard more simply efficiently.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram in section of the present invention；
Fig. 3 is the structure diagram of sampling structure of the present invention；
Fig. 4 is the present invention looks up structural representation of sampling structure of the present invention；
Wherein：1. sampling structure, 11 3 hole circular passages, 12. water conservancy diversion aggregation infrastructures, 2. heating structures, 3. consumptive materials, 31.
Consumptive material passage, 4. screw threads for fastening structures, 5. heating plates, 6. sealing "O"-rings.
Embodiment
The present invention will be further described in detail with reference to the specific embodiments.
As shown in Figure 1, be a kind of heating sampling structure based on fluorescent quenching technology trace explosive detector of the present invention,
Including sampling structure 1, heating structure 2 and consumptive material 3, the heating structure 2 is actively set on the outer wall of sampling structure 1；The consumption
In the activity insertion heating structure 2 of material 3；As shown in Figures 3 and 4, perforation is provided with three hole circular passages 11 in the sampling structure 1,
The bottom in three holes circular passage 11 is provided with water conservancy diversion aggregation infrastructure 12；The bottom of the sampling structure 1 is provided with for coordinating consumption
The concave station 13 that material 3 is inserted into.
As shown in Fig. 2, it is provided with screw threads for fastening structure 4 between the sampling structure 1 and heating structure 2.
Circle sealing "O"-ring 6 is provided with the inner wall of 13 bottom of concave station.
The bottom of the heating structure 2 is provided with the heating plate 5 for heating.
The centre position of heating structure 2 is inserted into activity to the consumptive material 3 from below, and is inserted into concave station through sealing "O"-ring 6
In 13.
The centre position perforation of the consumptive material 3 is provided with consumptive material passage 31, and 31 and three hole circular passage 11 of consumptive material passage
Stagger, not on same vertical line, ambient light has been cut off into the light path of consumptive material passage 31 with this, has completely cut off ambient light to detection
Influence.
The sampling structure 1 is by screw threads for fastening structure 4 from the centre position of top activity precession heating structure 2.Pass through
Screw threads for fastening structure 4 can easily be such that sampling structure 1 is taken apart from heating structure 2, facilitate cleaning and maintenance.
The course of work of the heating sampling structure based on fluorescent quenching technology trace explosive detector of the present invention includes adding
Thermal process and sample introduction process, specific work process are as follows：
In heating process, the heating plate 5 of 2 bottom of heating structure works, and heating structure 2 is heated, heating structure 2
Sampling structure 1 is transferred heat to by screw threads for fastening structure 4, three hole circular passages 11 in sampling structure 1 is also heated,
Into normal working status.
During sample introduction, heated after three hole circular passages 11 and into the explosive gas for after working status, being evaporated out
Three hole circular passages 11 will be passed through to enter in sampling structure 1, delayed at the water conservancy diversion aggregation infrastructure 12 of three hole circular passages, 11 bottom
Rush explosive gas, and will be detected in consumptive material passage 31 that the gas is converged in consumptive material 3.In the process, it is evaporated out
The explosive gas come substantially increases the utilization rate for the explosive gas for being evaporated out behind three hole circular passages 11；Explosive
Steam converges in the consumptive material passage 31 in consumptive material 3 again after being buffered at water conservancy diversion aggregation infrastructure 12, reduces the stream of explosive steam
Speed, improves quenching efficiency of the explosive steam to consumptive material, improves the detection limit of detection indirectly.
The heating sampling structure of the present invention adds the collection area of explosive molecules, and substantially increases the receipts of explosive molecules
Collect efficiency；Eliminate the risk that ambient light is emitted directly toward consumptive material passage；Quenching efficiency of the explosive molecules to consumptive material is improved,
Connect the detection limit for improving detection；And make installation, cleaning, safeguard more simply efficiently.
Claims (7)
1. a kind of heating sampling structure based on fluorescent quenching technology trace explosive detector, it is characterised in that including sample introduction knot
Structure (1), heating structure (2) and consumptive material (3), the heating structure (2) are actively set on the outer wall of sampling structure (1)；The consumption
In material (3) activity insertion heating structure (2)；Perforation is provided with three hole circular passages (11), three orifice rings in the sampling structure (1)
The bottom of shape passage (11) is provided with water conservancy diversion aggregation infrastructure (12)；The bottom of the sampling structure (1) is provided with for coordinating consumption
The concave station (13) of material (3) insertion.
2. the heating sampling structure according to claim 1 based on fluorescent quenching technology trace explosive detector, its feature
It is, screw threads for fastening structure (4) is provided between the sampling structure (1) and heating structure (2).
3. the heating sampling structure according to claim 1 based on fluorescent quenching technology trace explosive detector, its feature
It is, circle sealing "O"-ring (6) is provided with the inner wall of concave station (13) bottom.
4. the heating sampling structure according to claim 2 based on fluorescent quenching technology trace explosive detector, its feature
It is, the bottom of the heating structure (2) is provided with the heating plate (5) for heating.
5. the heating sampling structure according to claim 1 based on fluorescent quenching technology trace explosive detector, its feature
It is, the centre position of heating structure (2) is inserted into activity to the consumptive material (3) from below, and is inserted into through sealing "O"-ring (6)
In concave station (13).
6. the heating sampling structure according to claim 6 based on fluorescent quenching technology trace explosive detector, its feature
It is, the centre position perforation of the consumptive material (3) is provided with consumptive material passage (31), and consumptive material passage (31) and three hole circular passages
(11) stagger, not on same vertical line.
7. the heating sampling structure according to claim 2 based on fluorescent quenching technology trace explosive detector, its feature
It is, the sampling structure (1) is by screw threads for fastening structure (4) from the centre position of top activity precession heating structure (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711453432.8A CN107991278B (en) | 2017-12-28 | 2017-12-28 | Heating sample injection structure of trace explosive detector based on fluorescence quenching technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711453432.8A CN107991278B (en) | 2017-12-28 | 2017-12-28 | Heating sample injection structure of trace explosive detector based on fluorescence quenching technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107991278A true CN107991278A (en) | 2018-05-04 |
| CN107991278B CN107991278B (en) | 2024-04-26 |
Family
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| CN107991278B (en) | 2024-04-26 |
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