CN119314856B - A sampling cone for reducing matrix effect in plasma mass spectrometer - Google Patents
A sampling cone for reducing matrix effect in plasma mass spectrometer Download PDFInfo
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- CN119314856B CN119314856B CN202411847774.8A CN202411847774A CN119314856B CN 119314856 B CN119314856 B CN 119314856B CN 202411847774 A CN202411847774 A CN 202411847774A CN 119314856 B CN119314856 B CN 119314856B
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- 238000005070 sampling Methods 0.000 title claims abstract description 82
- 230000000694 effects Effects 0.000 title claims abstract description 45
- 239000011159 matrix material Substances 0.000 title claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 147
- 230000017525 heat dissipation Effects 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 79
- 238000009413 insulation Methods 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 239000000110 cooling liquid Substances 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000009616 inductively coupled plasma Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/626—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using heat to ionise a gas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
- H01J49/0409—Sample holders or containers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
- H01J49/0431—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components for liquid samples
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
- H01J49/0468—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components with means for heating or cooling the sample
- H01J49/0486—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components with means for heating or cooling the sample with means for monitoring the sample temperature
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
本发明涉及应用于质谱仪采样锥领域的一种降低等离子体质谱仪基体效应的采样锥，通过辅助采样锥散热降温来降低采样锥内溶液样品，在现有散热柱和循环冷却机冷却散热的基础上，通过“几”字形的设计，可使得水冷管与冷却管接触的二号区域以及三号区域均保持初始的冷却效果，从而使得二号区域和三号区域的冷却质量保持一致，而折叠设计的支管可对一号区域进行冷却，从而使得冷却管的冷却效果保持一致，并在水冷管换热时，气囊条膨胀挤压，加大水冷管与冷却管的换热接触面积，提升散热效率，并能够在充气条和送气软管的配合下，实现换热效率的可调整，进一步提升换热均匀性。
The invention relates to a sampling cone for reducing the matrix effect of a plasma mass spectrometer, which is applied to the field of mass spectrometer sampling cones. The sample of a solution in the sampling cone is reduced by assisting the heat dissipation and cooling of the sampling cone. On the basis of the existing heat dissipation of heat dissipation by heat dissipation columns and circulating coolers, a "J"-shaped design is used to enable a second area and a third area where a water-cooling pipe contacts a cooling pipe to maintain an initial cooling effect, thereby maintaining the cooling quality of the second area and the third area consistent. A branch pipe with a folding design can cool the first area, thereby maintaining the cooling effect of the cooling pipe consistent. When the water-cooling pipe exchanges heat, an air bag strip expands and squeezes, thereby increasing the heat exchange contact area between the water-cooling pipe and the cooling pipe, thereby improving the heat dissipation efficiency. In addition, with the cooperation of an inflatable strip and an air supply hose, the heat exchange efficiency can be adjusted, thereby further improving the heat exchange uniformity.
Description
Technical Field
The invention relates to a sampling cone, in particular to a sampling cone for reducing the matrix effect of a plasma mass spectrometer, which is applied to the field of mass spectrometers.
Background
The matrix effect refers to the influence of other components except the element to be detected in the sample on the analysis result in the analysis process of the inductively coupled plasma mass spectrometer. Such effects may come from a variety of factors including ionization suppression, space charge effects, synergy, and the like. In plasma mass spectrometer analysis, matrix effects are a complex and important problem that directly affects the accuracy and precision of the analysis. By controlling the concentration of the sample in the sampling cone, the method is an effective means for reducing the matrix effect.
The patent specification with the publication number of CN212461599U discloses a novel sampling cone of an inductively coupled plasma mass spectrometer, and the novel sampling cone of an inductively coupled plasma mass spectrometer is reasonable in structural arrangement, and a clamp is arranged on the circumference of an outer ring of a plane part, so that the clamp and the cone can be taken down together when the sampling cone is disassembled, and the problem that the traditional sampling cone is troublesome in disassembly and assembly process and easy to fall is solved.
The cooling of current sampling awl is generally adopted the cooperation of heat dissipation post and circulative cooling machine, realizes the cooling of sampling awl and will be cooled down the processing to this avoids the interior sample evaporation that leads to of temperature too big in the sampling awl and then increases sample concentration, with the base member effect in this control sampling awl, but at the water-cooling in-process, the cooling tube wire-wound is on the surface of sampling awl, and the distance between inlet tube and the outlet pipe is longer, thereby leads to the cooling effect of the regional near sampling awl surface inlet tube to be superior to the regional near outlet pipe, leads to sampling awl surface cooling effect inconsistent.
Disclosure of Invention
Aiming at the prior art, the invention aims to solve the technical problem of how to realize the consistency of the cooling quality of the surface of the sampling cone in the cooling process of the sampling cone.
In order to solve the problems, the invention provides a sampling cone for reducing the matrix effect of a plasma mass spectrometer, which comprises a sampling cone with a plane part and a conical part, wherein a heat dissipation column is arranged on the plane part of the sampling cone, a plurality of heat dissipation fins are arranged on the surface of the heat dissipation column, a cooling pipe is spirally wound on the outer surface of the conical part of the sampling cone, a hose is connected with a water inlet of the cooling pipe, and a branch pipe is connected with the surface of the hose;
Sealing plugs are arranged on the inner walls of the water inlet and the water outlet of the cooling pipe, a heat insulation strip is connected between the two sealing plugs, the inside of the cooling pipe is divided into two independent spaces by the heat insulation strip, two water cooling pipes are arranged in a penetrating manner in the sealing plug at the position of the water inlet in the cooling pipe, the two water cooling pipes are arranged in a shape like a Chinese character 'ji', vertical projections of the two water cooling pipes in the cooling pipe are symmetrically arranged, a heat insulation disc with the same diameter as the inner diameter of the cooling pipe is arranged at the position where the vertical projections of the two water cooling pipes overlap in the cooling pipe, and the two water cooling pipes penetrate through the inside of the heat insulation disc;
The cooling pipe consists of a heat conduction part and a heat insulation part, wherein the heat conduction part and the heat insulation part are symmetrically arranged about the heat insulation strip, an air bag strip is arranged in the heat conduction part, and the air bag strip is positioned between the water cooling pipe and the heat insulation strip;
The inner side thread of the tip end part of the sampling cone conical part is connected with an embedded piece, the inner wall of one end of the sampling cone plane part, which is away from the conical part, is provided with a groove, and a high-temperature emulsion sealing ring is connected in the groove.
In the sampling cone for reducing the matrix effect of the plasma mass spectrometer, on the basis of cooling and radiating of the radiating column and the circulating cooler, the cooling effect of the cooling pipe on the surface of the sampling cone is kept consistent through the water cooling pipe with the design of a Chinese character 'ji' and the branch pipe with the design of folding.
As a further improvement of the application, the heat conducting part is made of heat conducting materials, the heat conducting part is attached to the surface of the sampling cone, and the heat insulating part is made of heat insulating materials.
As a still further improvement of the application, the tail end of the branch pipe extends to the inside of the water outlet end of the cooling pipe, the water outlet of the branch pipe is positioned in the position area of the water outlet of the cooling pipe, the branch pipe is positioned above the water cooling pipe, and the height of the air bag strip in the initial state is larger than the installation height of the branch pipe.
As a further improvement of the application, the radiating fins are of wave-shaped design, and the radiating fins are made of elastic heat-conducting materials.
As a further improvement of the application, the length value of the heat dissipation column is larger than the height value of the conical part of the sampling cone, the top end and the bottom end of the heat dissipation fins are connected with the plug-in blocks, and the heat dissipation fins are plugged with the plug-in grooves arranged on the surface of the heat dissipation column through the plug-in blocks.
As a further improvement of the application, the air charging strip is arranged in the water cooling pipe, the air supply hose communicated with the air charging strip is arranged in the heat insulation strip in a penetrating way, and the electronic valve is arranged on the surface of the air supply hose.
In addition to the further improvement of the application, a plurality of temperature sensors are arranged on the surface of the cooling pipe, and the temperature sensors are in signal connection with the electronic valve.
In addition to the further improvement of the application, an electric air pump connected with the air supply hose is arranged on one side of the sampling cone, the air charging strips in the water cooling pipes are arranged in a three-section mode, and the adjacent air charging strips in each water cooling pipe are in an isolation state.
In summary, when the matrix effect in the sampling cone is reduced, the solution sample in the sampling cone is reduced by assisting the heat dissipation and the cooling of the sampling cone, on the basis of the cooling and the heat dissipation of the existing heat dissipation column and the circulating cooler, the initial cooling effect of the second area and the third area contacted with the cooling pipe by the water cooling pipe can be kept, so that the cooling quality of the second area and the third area is kept consistent, the branch pipe in the folding design can cool the first area, so that the cooling effect of the first area, the second area and the third area is kept consistent, and when the water cooling pipe exchanges heat, the air bag strips expand and squeeze, the heat exchange contact area of the water cooling pipe and the cooling pipe is enlarged, the heat dissipation efficiency is improved, and the adjustable heat exchange efficiency is realized under the cooperation of the air charging strip and the air supplying hose, and the heat exchange uniformity is further improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a first embodiment of the present application;
FIG. 2 is a schematic view of the installation of a sampling cone insert and a high temperature latex seal ring according to a first embodiment of the present application;
fig. 3 is a view showing a heat conducting portion and a heat insulating portion according to a first embodiment of the present application;
FIG. 4 is a view showing an arrangement of the branch pipes in the cooling pipe according to the first embodiment of the present application;
FIG. 5 is a diagram showing the arrangement of two water cooling tubes in a cooling tube according to a first embodiment of the present application;
FIG. 6 is a schematic view showing the paths of the cooling liquid in the branch pipes according to the first embodiment of the present application;
FIG. 7 is a state diagram of the airbag module before and after inflation of the airbag module according to the first embodiment of the present application;
FIG. 8 is a schematic view illustrating the installation of an air bar and an air supply hose according to a second embodiment of the present application;
FIG. 9 is a state diagram showing the expansion of the inflatable strip to deform the water cooling tube according to the second embodiment of the present application;
Fig. 10 is a state diagram showing the difference in expansion degree of the segment type inflatable strip according to the second embodiment of the present application.
The reference numerals in the figures illustrate:
1. a sampling cone; 2, cooling pipes, 3, heat-dissipating columns, 4, branch pipes, 5, heat-insulating strips, 6, air bag strips, 7, water-cooled pipes, 8, heat-insulating discs, 21, heat-conducting parts, 22, heat-insulating parts, 71, air-charging strips, 72, air-supplying hoses and 9, sealing plugs.
Detailed Description
Two embodiments of the present application will be described in detail with reference to the accompanying drawings.
First embodiment:
1-5 show a sampling cone for reducing the matrix effect of a plasma mass spectrometer, which comprises a sampling cone 1 with a plane part and a conical part, wherein a heat dissipation column 3 is arranged on the plane part of the sampling cone 1, a plurality of heat dissipation fins are arranged on the surface of the heat dissipation column 3, a cooling pipe 2 is spirally wound on the outer surface of the conical part of the sampling cone 1, a hose is connected with a water inlet of the cooling pipe 2, and a branch pipe 4 is connected with the surface of the hose;
The inner walls of the water inlet and the water outlet of the cooling pipe 2 are provided with sealing plugs 9, the middle of the two sealing plugs 9 is connected with a heat insulation strip 5, the heat insulation strip 5 divides the interior of the cooling pipe 2 into two independent spaces, two water cooling pipes 7 are arranged in a penetrating way in the sealing plug 9 at the position of the water inlet in the cooling pipe 2, the two water cooling pipes 7 are arranged in a shape like a Chinese character 'ji' in the interior of the cooling pipe 2, the vertical projections of the two water cooling pipes 7 in the cooling pipe 2 are symmetrically arranged, the heat insulation discs 8 with the diameter identical to the inner diameter of the cooling pipe 2 are arranged at the position where the vertical projections of the two water cooling pipes 7 overlap in the cooling pipe 2, and the two water cooling pipes 7 penetrate the interior of the heat insulation discs 8;
The cooling pipe 2 is composed of a heat conduction part 21 and a heat insulation part 22, wherein the heat conduction part 21 and the heat insulation part 22 are symmetrically arranged about the heat insulation strip 5, an air bag strip 6 is arranged in the heat conduction part 21, and the air bag strip 6 is positioned between the water cooling pipe 7 and the heat insulation strip 5;
The inner side thread of the tip end part of the conical part of the sampling cone 1 is connected with an embedded piece, the inner wall of one end of the plane part of the sampling cone 1, which is away from the conical part, is provided with a groove, and a high-temperature emulsion sealing ring is connected in the groove.
The tail end of the branch pipe 4 extends to the inside of the water outlet end of the cooling pipe 2, the water outlet of the branch pipe 4 is positioned in the position area of the water outlet of the cooling pipe 2, the branch pipe 4 is positioned above the water cooling pipe 7, and the height of the air bag strip 6 in the initial state is larger than the installation height of the branch pipe 4.
Specifically, in the working process of the sampling cone, the temperature of the outlet end of the sampling cone is higher, so that evaporation of an internal solution sample can be possibly caused, the concentration of the sample is increased, and the matrix effect is not reduced, so that in the cooling process of the sampling cone 1, the heat dissipation column 3 and the heat dissipation fins on the surface can both have the auxiliary effect of auxiliary heat dissipation, and the heat dissipation effect can be enhanced by matching with a circulating cooler (not shown in the figure) which is arranged on one side of the sampling cone 1 and is connected with the cooling pipe 2.
Through the design has the inserted sheet, can reduce sample matrix effect better to improve matrix tolerance when handling complicated matrix or high salt sample, indirectly improve the analysis sensitivity of mass spectrometer, still can reduce the subsidence when 1 taper holes of sampling cone, can reduce the risk that the taper holes blockked up, in addition the design of high temperature latex sealing washer can make the leakproofness better.
In the prior art, the cooling liquid is sent into the cooling pipe 2 through the circulation cooler, then returned into the circulation cooler through the water outlet of the cooling pipe 2, and the cooled cooling liquid is conveyed into the cooling pipe 2 again for circulation heat dissipation.
However, in the prior art, taking the present invention as an example, when the cooling tube 2 dissipates heat, the water inlet of the cooling tube 2 is located at the position above the sampling cone 1, and the water outlet of the cooling tube 2 is located at the position below the sampling cone 1, this results in that the cooling effect at the water inlet of the cooling tube 2 is better than that at the water outlet, because the cooling liquid at the water outlet has exchanged heat for a while, the cooling effect of the cooling liquid is poor.
In the invention, the cooling liquid entering at the water inlet in the cooling tube 2 enters into two water cooling tubes 7 respectively, wherein one water cooling tube 7 (marked as a first tube) is close to the surface of the sampling cone 1, normal heat exchange operation is carried out on the third region, the water cooling tube 7 is extruded and deformed under the thermal expansion extrusion action of the air bag strip 6 in the heat conducting part 21, the contact area between the water cooling tube 7 and the cooling tube 2 is enlarged (as shown in fig. 7), so that the heat exchange efficiency is enhanced, meanwhile, the other water cooling tube 7 (marked as a second tube) is isolated in a heat insulation space formed by the heat insulation part 22, the heat insulation disc 8 and the heat insulation strip 5, the cooling effect is kept until the contact part between the two water cooling tubes 7 and the cooling tube 2 (namely, the first tube and the second tube are in the exchange position), and the part of the second tube which is initially isolated and kept in the cooling effect is contacted with the cooling tube 2, and the initial cooling effect is carried out on the surface of the second region.
Meanwhile, the branch pipe 4 in the folded state is subjected to cooling treatment in the first area (as shown in fig. 6), so that the cooling effect of the first area, the second area and the third area is kept in the state that the water cooling pipe 7 is initially cooled, and the consistency of cooling quality is realized.
In the heat dissipation process, the first area is located in a position area of the sampling cone 1, which is close to the bottom, the second area is located in a position area of the sampling cone 1, which is centered, and the third area is located in a position area of the sampling cone 1, which is above.
The water outlets of the two water cooling pipes 7 and the water outlet of the branch pipe 4 are positioned in the water outlet position of the cooling pipe 2, and the cooling liquid subjected to heat exchange treatment can be discharged intensively through the water outlet of the cooling pipe 2, so that the circulation treatment is realized.
The heat conducting part 21 is made of a heat conducting material, the heat conducting part 21 is attached to the surface of the sampling cone 1, and the heat insulating part 22 is made of a heat insulating material.
Specifically, the heat conduction part 21 is in contact with the surface of the sampling cone 1, and heat exchange operation can be realized.
The radiating fins are of wave-shaped design and made of elastic heat-conducting materials.
The length value of the heat dissipation column 3 is larger than the height value of the conical part of the sampling cone 1, the top end and the bottom end of each heat dissipation fin are connected with a plug-in block, and the heat dissipation fins are plugged into plug-in grooves formed in the surface of the heat dissipation column 3 through the plug-in blocks.
Specifically, when the radiating fins are in contact with the surface of the radiating column 3 in the plugging state, when dust cleaning is required to be carried out on the surfaces of the radiating fins, the plugging blocks on the surfaces of the radiating fins can be separated from the inside of the plugging grooves, then the cleaning sheets are wrapped on the surfaces of the radiating fins, one ends of the radiating fins are fixed, and then the wrapped cleaning sheets are driven to move along the surfaces of the radiating fins, so that the dust on the surfaces of the radiating fins can be cleaned.
In addition, the height design of the heat dissipation column 3 ensures that the narrower cone opening of the sampling cone 1 can not contact with the placement surface even in an inverted state, thereby avoiding collision damage.
Second embodiment:
Fig. 8 to 9 show that the air-filling strip 71 is provided in the water-cooling pipe 7, the air-supplying hose 72 penetrating the air-filling strip 71 is installed inside the heat-insulating strip 5, and the electronic valve is installed on the surface of the air-supplying hose 72.
An electric air pump (not shown) connected with an air supply hose 72 is arranged on one side of the sampling cone 1, air inflation strips 71 in the water cooling pipes 7 are arranged in a three-stage mode, and adjacent air inflation strips 71 in each water cooling pipe 7 are in an isolation state.
The surface of the cooling pipe 2 is provided with a plurality of temperature sensors, and the temperature sensors are in signal connection with the electronic valve.
Unlike the first embodiment, this embodiment is mainly directed to the improvement of the air bag bar 6 and the water-cooled tube 7 in contact with each other to thereby affect the expansion and extrusion effects.
Specifically, when radiating, the air bag strip 6 contacts with the water-cooled tube 7, and the temperature is synchronously reduced, so that the extrusion deformation effect of the water-cooled tube 7 is affected, and at the moment, the design of the built-in inflatable strip 71 can continuously inflate the design when the water-cooled tube 7 deforms to enlarge the contact area with the heat conducting part 21 of the cooling tube 2, so that the expansion degree of the inflatable strip 71 is not affected by the temperature of the water-cooled tube 7 (as shown in fig. 9).
In addition, the temperature reduction effect of the surface of the different areas of the sampling cone 1 can be detected through the surface temperature sensor, when the temperature of the local area of the surface of the sampling cone 1 is higher than that of other areas, the inflation degree of the area can be increased (through adjusting the flow degree of the electronic valve), so that the inflation degrees of the inflation strips 71 of the different areas are different (as shown in fig. 10), the deformation degree of the water cooling pipe 7 of the area is enhanced, the heat dissipation contact area is further increased, and the uniform heat dissipation is realized in an auxiliary manner.
Moreover, the electric pump can be inflated or deflated, so that the deflation and inflation operation of the inflation strip 71 can be achieved.
Alternatively, the air bag strip 6 may be replaced with the air bag strip 71 (i.e., the air bag strip 6 is omitted), so that the air bag strip 71 alone is inflated and deformed to perform the corresponding deformation treatment of the water-cooled tube 7.
In summary, when the matrix effect in the sampling cone is reduced, the solution sample in the sampling cone is reduced by assisting the heat dissipation and the temperature reduction of the sampling cone, on the basis of the cooling and heat dissipation of the existing heat dissipation column 3 and the circulating cooler, the initial cooling effect of the second area and the third area contacted with the cooling pipe 2 by the water cooling pipe 7 can be kept, so that the cooling quality of the second area and the third area is kept consistent, the branch pipe 4 in the folding design can cool the first area, so that the cooling effect of the first area, the second area and the third area is kept consistent, and when the water cooling pipe 7 exchanges heat, the air bag strip 6 expands and extrudes, the heat exchange contact area of the water cooling pipe 7 and the cooling pipe 2 is enlarged, the heat dissipation efficiency is improved, and the adjustable heat exchange efficiency is realized under the cooperation of the air charging strip 71 and the air supply hose 72, and the heat exchange uniformity is further improved.
The present application is not limited to the above-described embodiments, which are adopted in connection with the actual demands, and various changes made by the person skilled in the art without departing from the spirit of the present application are still within the scope of the present application.
Claims (8)
1. The sampling cone for reducing the matrix effect of the plasma mass spectrometer comprises a sampling cone (1) with a plane part and a conical part, wherein a heat dissipation column (3) is arranged on the plane part of the sampling cone (1), and a plurality of heat dissipation fins are arranged on the surface of the heat dissipation column (3), and the sampling cone is characterized in that a cooling pipe (2) is spirally wound on the outer surface of the conical part of the sampling cone (1), a hose is connected with a water inlet of the cooling pipe (2), and a branch pipe (4) is connected with the surface of the hose;
Sealing plugs (9) are arranged on the inner walls of a water inlet and a water outlet of the cooling pipe (2), a heat insulation strip (5) is connected between the two sealing plugs (9), the inside of the cooling pipe (2) is divided into two independent spaces by the heat insulation strip (5), two water cooling pipes (7) are arranged in a penetrating mode inside the sealing plugs (9) at the position of the water inlet in the cooling pipe (2), the two water cooling pipes (7) are arranged in a shape like a Chinese character 'ji' inside the cooling pipe (2), vertical projections of the two water cooling pipes (7) in the cooling pipe (2) are symmetrically arranged, heat insulation discs (8) with the same diameter as the inner diameter of the cooling pipe (2) are arranged at positions where the vertical projections of the two water cooling pipes (7) overlap, and the two water cooling pipes (7) penetrate through the inside of the heat insulation discs (8);
The cooling pipe (2) is composed of a heat conduction part (21) and a heat insulation part (22), wherein the heat conduction part (21) and the heat insulation part (22) are symmetrically arranged about the heat insulation strip (5), an air bag strip (6) is arranged in the heat conduction part (21), and the air bag strip (6) is positioned between the water cooling pipe (7) and the heat insulation strip (5);
The inner side of the tip end part of the conical part of the sampling cone (1) is connected with an embedded piece in a threaded manner, the inner wall of one end of the plane part of the sampling cone (1) deviating from the conical part is provided with a groove, and a high-temperature emulsion sealing ring is connected in the groove.
2. The sampling cone for reducing the matrix effect of a plasma mass spectrometer according to claim 1, wherein the heat conducting part (21) is made of a heat conducting material, the heat conducting part (21) is attached to the surface of the sampling cone (1), and the heat insulating part (22) is made of a heat insulating material.
3. A sampling cone for reducing the matrix effect of a plasma mass spectrometer according to claim 1, wherein the tail end of the branch pipe (4) extends to the inside of the water outlet end of the cooling pipe (2), the water outlet of the branch pipe (4) is positioned in the position area of the water outlet of the cooling pipe (2), the branch pipe (4) is positioned above the water cooling pipe (7), and the height of the air bag strip (6) in the initial state is larger than the installation height of the branch pipe (4).
4. The sampling cone for reducing the matrix effect of a plasma mass spectrometer according to claim 1, wherein the heat dissipation fins are of a wavy design and are made of an elastic heat conduction material.
5. The sampling cone for reducing the matrix effect of the plasma mass spectrometer according to claim 4, wherein the length value of the heat dissipation column (3) is larger than the height value of the conical part of the sampling cone (1), the top end and the bottom end of each heat dissipation fin are connected with a plug-in block, and the heat dissipation fins are plugged into plug-in grooves formed in the surface of the heat dissipation column (3) through the plug-in blocks.
6. A sampling cone for reducing the matrix effect of a plasma mass spectrometer according to claim 1, wherein an air charging strip (71) is arranged in the water cooling pipe (7), an air supply hose (72) communicated with the air charging strip (71) is arranged inside the heat insulation strip (5) in a penetrating mode, and an electronic valve is arranged on the surface of the air supply hose (72).
7. A sampling cone for reducing the matrix effect of a plasma mass spectrometer according to claim 6, wherein an electric air pump connected with an air supply hose (72) is arranged on one side of the sampling cone (1), the air strips (71) in the water cooling pipes (7) are arranged in a three-section mode, and the adjacent air strips (71) in each water cooling pipe (7) are isolated.
8. A sampling cone for reducing the matrix effect of a plasma mass spectrometer according to claim 7, characterized in that a plurality of temperature sensors are arranged on the surface of the cooling tube (2), and the temperature sensors are in signal connection with an electronic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411847774.8A CN119314856B (en) | 2024-12-16 | 2024-12-16 | A sampling cone for reducing matrix effect in plasma mass spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411847774.8A CN119314856B (en) | 2024-12-16 | 2024-12-16 | A sampling cone for reducing matrix effect in plasma mass spectrometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119314856A CN119314856A (en) | 2025-01-14 |
| CN119314856B true CN119314856B (en) | 2025-02-25 |
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| CN116472599A (en) * | 2020-11-18 | 2023-07-21 | 吉米亚分析公司 | Air cooled interface for inductively coupled plasma mass spectrometer (ICP-MS) |
| CN116548069A (en) * | 2020-09-18 | 2023-08-04 | 富鲁达加拿大公司 | Atomic analysis system and method based on inductively coupled plasma |
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| JP6167969B2 (en) * | 2014-03-31 | 2017-07-26 | 株式会社島津製作所 | Sampling unit and ICP mass spectrometer having the same |
| CN104517799B (en) * | 2014-12-31 | 2017-09-15 | 同方威视技术股份有限公司 | detection device and detection method |
| CN110052890A (en) * | 2019-05-27 | 2019-07-26 | 哈尔滨理工大学 | A kind of two-way double helix cooling jacket |
| CN112285190B (en) * | 2019-07-09 | 2025-02-18 | 中核陕西铀浓缩有限公司 | A mass spectrometer deep cooling device and refrigeration method thereof |
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| CN116548069A (en) * | 2020-09-18 | 2023-08-04 | 富鲁达加拿大公司 | Atomic analysis system and method based on inductively coupled plasma |
| CN116472599A (en) * | 2020-11-18 | 2023-07-21 | 吉米亚分析公司 | Air cooled interface for inductively coupled plasma mass spectrometer (ICP-MS) |
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