CN216450593U - Movable adjusting type low-temperature plasma micro-reaction device - Google Patents
Movable adjusting type low-temperature plasma micro-reaction device Download PDFInfo
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- CN216450593U CN216450593U CN202122899622.0U CN202122899622U CN216450593U CN 216450593 U CN216450593 U CN 216450593U CN 202122899622 U CN202122899622 U CN 202122899622U CN 216450593 U CN216450593 U CN 216450593U
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- sealing plug
- sliding groove
- temperature plasma
- polytetrafluoroethylene sealing
- polytetrafluoroethylene
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Abstract
The utility model discloses a movable adjusting type low-temperature plasma micro-reaction device which comprises a bottom plate, wherein a lifting mechanism is arranged at the upper end of the bottom plate, a protective shell is fixed at the upper end of a top plate, a sliding groove is formed in the protective shell, a first polytetrafluoroethylene sealing plug is connected to one end of the sliding groove, a second polytetrafluoroethylene sealing plug is connected to the other end of the sliding groove, a corundum tube jointly penetrates through and is fixed on the second polytetrafluoroethylene sealing plug and the first polytetrafluoroethylene sealing plug, sealing rings are connected to one ends of the first polytetrafluoroethylene sealing plug and one end of the second polytetrafluoroethylene sealing plug, the sealing rings abut against the side wall of the sliding groove in one circle, and metal blocks are mounted on the sliding groove. The utility model utilizes low-temperature plasma based on dielectric barrier and high-voltage discharge as a basis, and innovatively adopts the movable slide block to adjust the discharge distance, so that gas components can be ionized in the corundum tube under different ionization conditions.
Description
Technical Field
The utility model relates to the field of instrument analysis, in particular to a movable adjusting type low-temperature plasma micro-reaction device.
Background
Ionization of a sample is the basis for mass spectrometry and is one of the most critical links in an analysis system. Various ionization techniques have been developed and applied in succession as the technology advances.
1. Electron bombardment ionization (EI)
Electrons with certain energy directly act on sample molecules to ionize the sample molecules, and ionized molecular fragments enter a mass spectrometer to obtain high sensitivity and high resolution. The ionization energy of organic compounds is about 10eV generally, when the electron bombardment energy is 70eV energy, a rich fingerprint spectrum can be obtained, the energy is defined as the ionization energy which is relatively common at present, and the electron bombardment ionization is also the most common ionization mode at present.
2. Chemical Ionization (CI)
The electron bombardment has the advantages of strong universality, rich ion fragments and weak or even undetectable molecular ion signals. Chemical ionization adopts the introduction of a certain amount of reaction gas, so that sample molecules and ionized ions do not directly act, and active reaction ions are utilized to realize ionization. Commercial mass spectrometers can also employ a combined EI/CI ion source. The reagent gas is generally methane gas, and N2, CO, Ar or mixed gas can also be used.
3. Atmospheric Pressure Chemical Ionization (APCI)
Both electron bombardment ionization and chemical ionization need to be performed under vacuum. Under atmospheric pressure, the chemical ionization reaction has higher speed and higher efficiency, and can generate richer ions. Early on was a source of Ni63 ionizing radiation ions, another design was corona discharge ionization, allowing carrier gas flow rates of up to 9L/S. While effective in reducing source wall adsorption and solvent molecular interference, scientists have now, by continuing improvements, been able to achieve atmospheric pressure chemical ionization under a variety of conditions.
4. Electrospray ionization (ESI)
Electrospray ionization adopts a strong electrostatic field (3-5KV) to form high-density charge mist small droplets, and single-charge ions or multi-charge ions are generated after repeated solvent volatilization and droplet splitting. Electrospray ionization, an ionization mode that is easily used in conjunction with chromatography, has gradually become the mainstream ionization mode for analyzing larger molecular polar compounds.
5. Matrix-assisted laser desorption ionization (MALDI)
Matrix-assisted laser desorption ionization (MALDI) is a novel soft ionization technique for analyzing larger molecules that are non-volatile or thermally unstable. The use of a solid matrix to disperse a sample to be measured is a major feature of MALDI techniques. The matrix is a substance which coexists with the sample to be measured and absorbs the incident laser light to prevent the direct irradiation thereof from causing the sample to be measured to be destroyed. The sample to be measured is dispersed in the matrix according to a high dilution ratio (matrix: sample: 10000: 1), and the matrix effectively absorbs the energy of pulse laser with a certain wavelength and then uniformly transmits the energy to the sample to be measured, so that the sample to be measured is instantaneously gasified and ionized. In addition, the large amount of matrix enables the sample to be detected to be effectively dispersed, thereby reducing the interaction among molecules of the sample to be detected. This technology allows the identification and spatial distribution studies of biomolecules (e.g., DNA, proteins, peptides, and sugars) and large synthetic organic molecules (e.g., polymers, dendrimers, and other macromolecules).
The plasma is the fourth state of the substance after the solid state, the liquid state and the gas state, when the external voltage reaches the discharge voltage of the gas, the gas is broken down to generate a mixture comprising electrons, various ions, atoms and free radicals, and a device for exciting micro-reaction ionization by low-temperature plasma formed under the high-voltage discharge condition is not adopted at present, so that a movable adjustable low-temperature plasma micro-reaction device is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art, and provides a movable adjustable low-temperature plasma micro-reaction device.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a movable adjusting type low-temperature plasma micro-reaction device comprises a bottom plate, wherein a lifting mechanism is arranged at the upper end of the bottom plate, a protective shell is fixed at the upper end of a top plate, a sliding groove is formed in the protective shell, one end of the sliding groove is connected with a first polytetrafluoroethylene sealing plug, the other end of the sliding groove is connected with a second polytetrafluoroethylene sealing plug, a corundum tube is fixedly penetrated on the second polytetrafluoroethylene sealing plug and the first polytetrafluoroethylene sealing plug together, a sealing ring is connected to one end of each of the first polytetrafluoroethylene sealing plug and the second polytetrafluoroethylene sealing plug, the sealing ring is abutted against the side wall of one circle of the sliding groove, a metal block is installed on the sliding groove and penetrates through the corundum tube, an earth wire is connected to the upper end of the metal block, an opening is formed in the upper end of the sliding groove, the earth wire penetrates through the opening and extends to the upper end of the protective shell, one side of the upper end of the corundum tube is connected with a high-pressure adjusting block.
Preferably, the lifting mechanism comprises two folding frames respectively arranged at two sides of the bottom plate, the two folding frames in the same vertical direction are mutually and rotatably connected, the two sides of the upper end of the bottom plate are both fixed with a second baffle plate, one end of the folding frame positioned at the lower end in the same direction is rotatably connected to one side of the second baffle plate, the other end of the folding frame positioned at the lower end in the same direction is slidably connected to the other side of the second baffle plate, the rotary joint of the two folding frames is connected with two connecting rods, one of the connecting rods is in threaded sleeve connection with a screw rod, one end of the screw rod is fixed with a knob, the other end of the screw rod is rotationally connected with one side of the other connecting rod, wherein upper end one side of two folding legs rotates jointly and is connected with the roof, the lower extreme both sides of roof all are fixed with first baffle, and upper end one side sliding connection of two folding legs that are located the upper end is in one side of two first baffles.
Preferably, the folding leg is composed of two rotatably connected connecting plates.
Preferably, the protection shell is made of polytetrafluoroethylene.
Preferably, the length of the protective housing is-mm and the width of the protective housing is-mm.
Preferably, the length of the opening is-mm.
The utility model uses low-temperature plasma based on dielectric barrier and high-voltage discharge as a basis, innovatively adopts the movable slide block to adjust the discharge distance, so that gas components can be ionized in the corundum tube under different ionization conditions, and the beneficial effects are as follows: the discharge distance between the high-voltage discharge end and the low-voltage grounding end is adjustable, ionization of various gases can be realized by adjusting the upper voltage in a matching manner, ionization research and application of various media are facilitated, 2 the whole device is compact in structure, small in dead volume and beneficial to micro-reaction ionization, and 3 the device is provided with an adjustable lifting table and is beneficial to being used in combination with mass spectrums or other instruments with different heights.
Drawings
FIG. 1 is a schematic diagram of an internal structure of a movable adjustable low-temperature plasma micro-reaction device according to the present invention;
FIG. 2 is a schematic diagram of an external structure of a movable adjustable low-temperature plasma micro-reaction device according to the present invention;
FIG. 3 is a schematic side view of a movable adjustable low-temperature plasma micro-reaction device according to the present invention;
FIG. 4 is a top view of a protective housing of a movable adjustable low-temperature plasma micro-reaction device according to the present invention.
In the figure: the device comprises a high-pressure adjusting block 1, a first polytetrafluoroethylene sealing plug 2, a corundum tube 3, a protective shell 4, a top plate 5, a bottom plate 6, an opening 7, a grounding wire 8, a metal block 9, a second polytetrafluoroethylene sealing plug 10, a folding frame 11, a screw rod 12, a knob 13, a connecting rod 14, a sliding groove 15, a first baffle 16 and a second baffle 17.
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.
Referring to fig. 1-4, in the present invention, a bottom plate 6 is included, two folding frames 11 are respectively disposed on two sides of an upper end of the bottom plate 6, the two folding frames 11 in the same vertical direction are rotatably connected to each other, a second baffle 17 is fixed on two sides of an upper end of the bottom plate 6, one end of the folding frame 11 in the lower end in the same direction is rotatably connected to one side of the second baffle 17, the other end of the folding frame 11 in the lower end in the same direction is slidably connected to the other side of the second baffle 17, two connecting rods 14 are connected to the rotary joints of the two folding frames 11, a screw 12 is threadedly sleeved on one connecting rod 14, a knob 13 is fixed on one end of the screw 12, the other end of the screw 12 is rotatably connected to one side of the other connecting rod 14, a top plate 5 is rotatably connected to one side of the upper ends of the two folding frames 11, and first baffles 16 are fixed on two sides of the lower end of the top plate 5, one side sliding connection in the upper end of two folding legs 11 that are located the upper end is in one side of two first baffles 16, when the height of roof 5 need be adjusted, rotates knob 13 and drives screw rod 12 and rotate, drives the connecting rod 14 that the screw thread cup jointed and removes on screw rod 12 then, and along with the removal of connecting rod 14 drives folding leg 11 and expandes or contract, the lift adjustment that carries on that its one end sliding connection can be stable.
According to the utility model, a protective shell 4 is fixed at the upper end of a top plate 5, a sliding groove 15 is arranged on the protective shell 4, one end of the sliding groove 15 is connected with a first polytetrafluoroethylene sealing plug 2, the other end of the sliding groove 15 is connected with a second polytetrafluoroethylene sealing plug 10, a corundum tube 3 is fixedly penetrated on the second polytetrafluoroethylene sealing plug 10 and the first polytetrafluoroethylene sealing plug 2 together, a metal block 9 is installed on the sliding groove 15, the metal block 9 penetrates through the corundum tube 3, a grounding wire 8 is connected to the upper end of the metal block 9, an opening 7 is arranged at the upper end of the sliding groove 15, the grounding wire 8 penetrates through the opening 7 and extends to the upper end of the protective shell 4, one side of the upper end of the corundum tube 3 is connected with a high-pressure adjusting block 1, the external diameter of the corundum tube 3 is 1.6mm, the internal diameter is 0.5mm, the length of the corundum tube 3 is 220mm, and 10mm is reserved in each section.
In the utility model, the folding frame 11 is composed of two connecting plates which are rotatably connected, one end of each of the first polytetrafluoroethylene sealing plug 2 and the second polytetrafluoroethylene sealing plug 10 is connected with a sealing ring, and the sealing rings are abutted against the side wall of the chute 15 in a circle, so that the sealing plugs 2 and the low-pressure second polytetrafluoroethylene sealing plugs are not required to be firmly fixed.
In the utility model, the protection shell 4 is made of polytetrafluoroethylene material, the length of the protection shell 4 is 150-190 mm, the width of the protection shell 4 is 30-60 mm, and the length of the opening 7 is 0-100 mm.
In the utility model, a polytetrafluoroethylene protective shell 4, the length of the shell is 180 mm, the height is 50 mm, the width is 50 mm, the bottom of the shell is provided with a fixing edge, the width of the edge is 80 mm, a high-voltage regulating block 1 and a low-voltage grounding end are respectively arranged at two ends of the polytetrafluoroethylene shell, a metal block 9 is arranged at the central groove of the device, the left and right adjustment of a slide block can adjust the discharge interval, the adjustable range is 0-100mm, the diameter of the metal block 9 is 20mm, a corundum tube 3 is arranged in the protective shell 4, uniform low-temperature plasma discharge is generated in the corundum tube 3 through external voltage, the length of the corundum tube 3 is 220mm, 10mm is reserved in each two sections to be convenient for butt joint with related devices, the outer diameter of the corundum tube 3 is 1.6mm, the inner diameter is 0.5mm, one end of the shell is a polytetrafluoroethylene sealing plug 2 with a fine hole, the corundum tube 3 penetrates out through the fine hole, and a lifting platform is arranged at the lower part, the lifting platform is provided with a knob 13, the screw 12 is driven to rotate by screwing the knob 13 on the switch, and then the connecting rod 14 is driven to move, so that the up-and-down adjustment of the folding frame 11 is realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a little reaction unit of portable regulation formula low temperature plasma, includes bottom plate (6) and roof (5), its characterized in that: the upper end of the bottom plate (6) is provided with a lifting mechanism, the upper end of the top plate (5) is fixed with a protective shell (4), the protective shell (4) is provided with a sliding groove (15), one end of the sliding groove (15) is connected with a first polytetrafluoroethylene sealing plug (2), the other end of the sliding groove (15) is connected with a second polytetrafluoroethylene sealing plug (10), the second polytetrafluoroethylene sealing plug (10) and the first polytetrafluoroethylene sealing plug (2) are jointly penetrated and fixed with a corundum tube (3), one ends of the first polytetrafluoroethylene sealing plug (2) and the second polytetrafluoroethylene sealing plug (10) are both connected with a sealing ring, the sealing ring is abutted against the side wall of the sliding groove (15) in one circle, a metal block (9) is installed on the sliding groove (15), the metal block (9) penetrates through the corundum tube (3), the upper end of the metal block (9) is connected with a grounding wire (8), the upper end of spout (15) is equipped with opening (7), earth connection electric wire (8) run through opening (7) and extend to the upper end of protection casing (4), upper end one side of alundum tube (3) is connected with high pressure regulating block (1).
2. The movable adjustable low-temperature plasma micro-reaction device according to claim 1, wherein the lifting mechanism comprises two folding frames (11) respectively arranged at two sides of the bottom plate (6), the two folding frames (11) in the same vertical direction are rotatably connected with each other, a second baffle (17) is fixed at each side of the upper end of the bottom plate (6), one end of the folding frame (11) at the lower end in the same direction is rotatably connected to one side of the second baffle (17), the other end of the folding frame (11) at the lower end in the same direction is slidably connected to the other side of the second baffle (17), two connecting rods (14) are connected to the rotary connection position of the two folding frames (11), one of the connecting rods (14) is in threaded sleeve connection with a screw rod (12), one end of the screw rod (12) is fixed with a knob (13), and the other end of the screw rod (12) is rotatably connected to one side of the other connecting rod (14), wherein the upper end one side of two folding legs (11) rotates jointly and is connected with roof (5), the lower extreme both sides of roof (5) all are fixed with first baffle (16), and the upper end one side sliding connection of two folding legs (11) that are located the upper end is in one side of two first baffles (16).
3. The mobile adjustable low-temperature plasma micro-reaction device according to claim 2, wherein the folding leg (11) is composed of two rotatably connected connection plates.
4. The mobile adjustable low-temperature plasma micro-reaction device as claimed in claim 1, wherein the protective casing (4) is made of polytetrafluoroethylene.
5. The movable adjustable low-temperature plasma micro-reaction device as claimed in claim 1, wherein the length of the protective casing (4) is 150-190 mm, and the width of the protective casing (4) is 30-60 mm.
6. The mobile adjustable low-temperature plasma micro-reaction device according to claim 1, wherein the length of the opening (7) is 10-100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122899622.0U CN216450593U (en) | 2021-11-24 | 2021-11-24 | Movable adjusting type low-temperature plasma micro-reaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122899622.0U CN216450593U (en) | 2021-11-24 | 2021-11-24 | Movable adjusting type low-temperature plasma micro-reaction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216450593U true CN216450593U (en) | 2022-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122899622.0U Active CN216450593U (en) | 2021-11-24 | 2021-11-24 | Movable adjusting type low-temperature plasma micro-reaction device |
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| Country | Link |
|---|---|
| CN (1) | CN216450593U (en) |
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2021
- 2021-11-24 CN CN202122899622.0U patent/CN216450593U/en active Active
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Address after: 361000 west side of No.23 guanyuanli, Siming District, Xiamen City, Fujian Province Patentee after: THE INSTITUTE OF HYDROGEOLOGY AND ENVIRONMENTAL GEOLOGY (IHEG), CHINESE ACADEMY OF GEOSCIENCES (CAGS) Patentee after: China South to North Water Transfer group middle route Co.,Ltd. Hebei Branch Address before: 361000 west side of No.23 guanyuanli, Siming District, Xiamen City, Fujian Province Patentee before: THE INSTITUTE OF HYDROGEOLOGY AND ENVIRONMENTAL GEOLOGY (IHEG), CHINESE ACADEMY OF GEOSCIENCES (CAGS) Patentee before: SOUTH BRANCH OF THE SOUTH-TO-NORTH WATER TRANSFER CENTRAL LINE CONSTRUCTION ADMINISTRATION BUREAU, HEBEI BRANCH |
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| CP01 | Change in the name or title of a patent holder |