Sampling circulation cup

Abstract

The embodiment of the utility model provides a sampling circulation cup. The sampling circulation cup comprises a circulation cup body, a solution circulation groove, an irradiation window, a sealing film, a fixing plate, a reflux inlet and a sample inlet. The solution circulating groove is formed in the circulating cup body, a solution circulating branch is further arranged on the solution circulating groove, and the solution circulating branch is perpendicular to the solution circulating groove. The circulation cup body is provided with an irradiation window which is an outlet of the solution circulation branch. The sealing film is used for sealing the irradiation window. The fixing plate is used for fixing the sealing film to the circulation cup body. The solution circulation groove is further provided with a first port and a second port, the first port is communicated with the sample inlet, the second port is communicated with the reflux inlet, and a sample solution flows in from the sample inlet, flows through the solution circulation branch and flows out from the reflux inlet. Therefore, the X-ray does not irradiate on the cup wall of the sampling circulation cup, the influence of the sampling circulation cup on transmission and detection of the X-ray is reduced, and qualitative and quantitative element analysis can be accurately carried out on a sample solution.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of solution analysis, and particularly to a sampling flow-through cup. Background Art

[0002] Existing sampling flow-through cups are usually made of general plastic materials, such as polyethylene (PE), polypropylene (PP), etc. When the sample solution in the sampling flow-through cup needs to be analyzed by an X-ray fluorescence spectrometer, these polyethylene and polypropylene materials will absorb or emit X-rays within the X-ray energy range, thus interfering with the accuracy of the sample solution analysis.

[0003] Therefore, there is a need for a sampling flow-through cup that does not affect the transmission and detection of X-rays when the sample solution in it is analyzed by an X-ray fluorescence spectrometer, and can accurately perform qualitative and quantitative analysis of the sample solution for elements. Summary of the Invention

[0004] In view of the above problems, the embodiments of the present application provide a sampling flow-through cup, which overcomes the above problems or at least partially solves the problem that when the liquid in the existing sampling flow-through cup is analyzed by an X-ray fluorescence spectrometer, the sampling flow-through cup itself will affect the transmission and detection of X-rays, making it difficult to accurately measure and quantitatively analyze the elements of the liquid.

[0005] The embodiments of the present application provide a sampling flow-through cup, including: a flow-through cup body, a solution flow channel, an irradiation window, a sealing film, a fixing plate, a reflux port, and a sampling port. The solution flow channel is arranged inside the flow-through cup body, and a solution flow branch is also provided on the solution flow channel, and the solution flow branch is perpendicular to the solution flow channel. An irradiation window is arranged on the flow-through cup body, and the irradiation window is the outlet of the solution flow branch. The sealing film is used to seal the irradiation window, and the fixing plate is used to fix the sealing film to the flow-through cup body. The solution flow channel also has a first port and a second port. The first port is communicated with the sampling port, and the second port is communicated with the reflux port. The sample solution flows in from the sampling port, flows through the solution flow branch, and flows out from the reflux port.

[0006] In this embodiment, by providing an irradiation window which is the outlet of the solution flow branch, the sample solution can flow to the irradiation window. By sealing the irradiation window with a sealing film, the sample solution in the sampling flow cup can be prevented from overflowing through the irradiation window. By fixing the sealing film to the flow cup body with a fixing plate, the sealing film is not easily broken by the flowing sample solution. When the sample solution in the sampling flow cup is analyzed by an X-ray fluorescence spectrometer, the X-ray can pass through the irradiation window and irradiate the sample solution, and then the X-ray fluorescence is transmitted back through the irradiation window to complete the X-ray fluorescence spectrometer analysis. Thus, the sampling flow cup in this embodiment can be used for X-ray fluorescence spectrometer analysis. The X-ray can pass through the irradiation window to excite the sample solution to generate X-ray fluorescence and then be received by the X-ray fluorescence spectrometer. The X-ray does not irradiate on the wall of the sampling flow cup, reducing the influence of the sampling flow cup itself on the transmission and detection of the X-ray, and enabling more accurate elemental measurement and quantitative analysis of the sample solution. In addition, compared with the X-ray irradiating the sample solution through the wall of the sampling flow cup, the X-ray irradiating the sample solution through the irradiation window sealed by the sealing film can reduce the influence of the wall thickness of the sampling flow cup on the analysis result, further improving the accuracy of the analysis result.

[0007] In an alternative embodiment, along the direction of gravity, the position of the second port is higher than the position of the irradiation window, and the position of the irradiation window is higher than the position of the first port.

[0008] In this embodiment, the second port is communicated with the reflux port, and the first port is communicated with the injection port. By making the position of the second port higher than the position of the irradiation window and the position of the irradiation window higher than the position of the first port, in the direction of gravity, the sample solution can enter the sampling flow cup from the bottom and flow out of the sampling flow cup from the top. Thus, the sample solution can flow through the solution flow branch and fill the solution flow branch, enabling the X-ray to pass through the irradiation window and irradiate the sample solution.

[0009] In an alternative embodiment, the sealing film is a polyimide film.

[0010] The polyimide film has good chemical resistance, heat resistance and high airtightness, which can effectively isolate the air and moisture inside the sampling flow cup and prevent the air and moisture from interfering with the X-ray fluorescence spectrometer analysis. Moreover, the polyimide film has a high transmittance, which can allow the X-ray to pass through and irradiate the sample solution. The polyimide film does not significantly absorb or diffract the X-ray and can maintain the original X-ray intensity.

[0011] In an alternative embodiment, the thickness of the sealing film is from 0.03 mm to 0.05 mm.

[0012] In an alternative embodiment, the irradiation window is a circular window.

[0013] In this embodiment, the irradiation window is a circular window, which can make the forces on all parts of the sampling flow cup uniform, and it is not easy to deform and rupture due to uneven pressure, so the sampling flow cup can be more durable.

[0014] In an alternative way, the sampling flow cup further includes a sealing ring, and the flow cup body is further provided with a groove, which is arranged around the irradiation window and is used to accommodate the sealing ring so that the sealing ring is located between the sealing film and the flow cup body.

[0015] In this embodiment, by providing the groove and placing the sealing ring between the sealing film and the flow cup body, the sealing performance of the sampling flow cup can be improved, and the problem of liquid leakage can be prevented.

[0016] In an alternative way, the sampling flow cup further includes a first pipeline interface and a second pipeline interface. The first pipeline interface is connected to the sampling inlet, and the second pipeline interface is connected to the reflux port.

[0017] In this embodiment, by connecting the first pipeline interface to the sampling inlet and the second pipeline interface to the reflux port, it can prevent the sampling inlet or the reflux port from detaching from the sampling flow cup due to the excessive impact force when the sample solution flows into the sampling inlet or the sample solution flows out of the reflux port.

[0018] In an alternative way, the sealing film is provided with a first through hole, the fixing plate is provided with a second through hole, the flow cup body is provided with a threaded hole, and the sampling flow cup further includes a bolt, which passes through the second through hole and the first through hole and is threadedly connected to the threaded hole.

[0019] In an alternative way, the fixing plate is further provided with a third through hole for exposing the irradiation window.

[0020] In an alternative way, the sampling flow cup is made of polyvinyl chloride.

[0021] The polyvinyl chloride material has excellent light transmittance and corrosion resistance, and the polyvinyl chloride material will not react with the substances in the sample solution.

[0022] The above description is only an overview of the technical solutions of the embodiments of the present application. In order to understand the technical means of the embodiments of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the embodiments of the present application more obvious and understandable, the specific embodiments of the present application are specifically listed below. Description of the Drawings

[0023] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0024] Figure 1 The first view of a sampling flow cup provided by some embodiments of the present application.

[0025] Figure 2 The second view of the sampling flow cup provided by some embodiments of the present application.

[0026] Figure 3 The structural schematic diagram of a sealing film provided by some embodiments of the present application.

[0027] Figure 4 The structural schematic diagram of a fixing plate provided by some embodiments of the present application.

[0028] Figure 5 The schematic diagram of a sampling flow cup for X-ray fluorescence spectrometer analysis provided by some embodiments of the present application. Detailed implementation manners

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the description of the present application in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0031] The terms "including" and "having" and any variations thereof in the description, claims, and drawings of the present application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the existence of a plurality.

[0032] Reference to "embodiment" in this document means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0033] In addition, the terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order, and may explicitly or implicitly include one or more of such features.

[0034] In the description of the present application, unless otherwise specified, the meaning of "a plurality" refers to two or more (including two). Similarly, "a plurality of groups" refers to two or more groups (including two groups).

[0035] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, "connected" or "coupled" in a mechanical structure may refer to a physical connection. For example, a physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a screw, a bolt, or other fixing members; a physical connection may also be a detachable connection, such as a snap connection or a snap-fit connection; a physical connection may also be an integral connection, such as a welded, bonded, or integrally formed connection. "Connected" or "coupled" in a circuit structure may refer to not only a physical connection but also an electrical connection or a signal connection. For example, it may be a direct connection, that is, a physical connection, or may be indirectly connected through at least one intermediate element, as long as the circuit is connected, and may also be a connection within two elements; a signal connection may refer to not only a signal connection through a circuit but also a signal connection through a media medium, such as radio waves. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0036] A sampling flow-through cup is a container for collecting and transporting liquid samples. It is usually made of transparent plastic or glass and has a sealed lid to prevent sample leakage or contamination. Sampling flow-through cups are widely used in fields such as plating solution monitoring for circuit boards, semiconductors, etc.

[0037] The X-ray fluorescence spectrometer analysis method refers to automatically sampling from the tank into the analysis unit online. When the sample solution is irradiated with X-rays, the sample solution will emit X fluorescence after absorbing the X-rays. The fluorescence energy spectrum characteristics of different elements are different. By detecting and analyzing these fluorescence signals, the types and contents of elements in the sample solution can be determined.

[0038] The method of analyzing the element concentration in the plating bath by X-ray fluorescence spectrometry uses a low-power positive high-voltage X-ray generator of 40 kV as the excitation source. The X-rays generated from the X-ray tube directly excite the sample solution after passing through the filter. Due to problems such as poor light transmittance and the absorbability of the material itself to X-rays, the traditional sampling flow cup will interfere with the accuracy of the sample solution analysis.

[0039] The embodiment of the present application provides a sampling flow cup. Please refer to Figure 1 , Figure 1 which is the first view of a sampling flow cup provided by some embodiments of the present application. Figure 2 which is the second view of the sampling flow cup provided by some embodiments of the present application. As Figure 1 and Figure 2 shown, the sampling flow cup includes: a flow cup body 01, a solution flow groove 02, an irradiation window 03, a sealing film 04, a fixing plate 05, a reflux port 06, and a sampling port 07.

[0040] The solution flow groove 02 is arranged inside the flow cup body 01. A solution flow branch 021 is also provided on the solution flow groove 02, and the solution flow branch 021 is perpendicular to the solution flow groove 02. An irradiation window 03 is arranged on the flow cup body 01, and the irradiation window 03 is the outlet of the solution flow branch 021. The sealing film 04 is used to seal the irradiation window 03, and the fixing plate 05 is used to fix the sealing film 04 on the flow cup body 01. The solution flow groove 02 is also provided with a first port 022 and a second port 023. The first port 022 is communicated with the sampling port 07, and the second port 023 is communicated with the reflux port 06. The sample solution flows in from the sampling port 07, fills the lower part of the solution flow groove 02, flows into the inlet of the solution flow branch 021 from the solution flow groove 02, and flows through the solution flow branch 021. Among them, the inlet of the solution flow branch 021 is the connection point between the solution flow branch 021 and the solution flow groove 02. After the sample solution fills the solution flow branch 021, the sample solution flows to the upper part of the solution flow groove 02 and finally flows out from the reflux port 06.

[0041] In this embodiment, by providing an irradiation window 03 and making the irradiation window 03 the outlet of the sample solution circulation branch 021, the sample solution can flow to the irradiation window 03. By sealing the irradiation window 03 with a sealing film 04, the sample solution in the sampling circulation cup can be prevented from overflowing through the irradiation window 03. By fixing the sealing film 04 to the circulation cup body 01 with a fixing plate 05, the sealing film 04 is not easily broken by the flowing sample solution. When the sample solution in the sampling circulation cup is analyzed by an X-ray fluorescence spectrometer, the X-ray can pass through the irradiation window 03 and irradiate on the sample solution, and then be transmitted back to the X fluorescence through the irradiation window 03 to complete the X-ray fluorescence spectrometer analysis. In this way, the X-ray does not irradiate on the wall of the sampling circulation cup, reducing the influence of the sampling circulation cup itself on the transmission and detection of the X-ray, and enabling more accurate qualitative and quantitative analysis of the sample solution. In addition, the X-ray irradiating on the sample solution through the irradiation window 03 sealed by the sealing film 04 can reduce the influence of the wall thickness of the sampling circulation cup on the analysis result compared with the X-ray irradiating on the sample solution through the wall of the sampling circulation cup, further improving the accuracy of the analysis result.

[0042] In some embodiments, in the direction of gravity, the position of the second port 023 is higher than the position of the irradiation window 03, and the position of the irradiation window 03 is higher than the position of the first port 022.

[0043] In this embodiment, the second port 023 is communicated with the reflux port 06, and the first port 022 is communicated with the sample injection port 07. By making the position of the second port 023 higher than the position of the irradiation window 03 and the position of the irradiation window 03 higher than the position of the first port 022, in the direction of gravity, the sample solution can enter the sampling circulation cup from below and flow out of the sampling circulation cup from above. In this way, the sample solution can flow through the solution circulation branch 021 and fill the solution circulation branch 021, enabling the X-ray to pass through the irradiation window 03 and irradiate on the sample solution.

[0044] In some embodiments, the sealing film 04 is a polyimide film.

[0045] The polyimide film has good chemical resistance, heat resistance and high airtightness, which can effectively isolate the air and moisture inside the sampling circulation cup and prevent the air and moisture from interfering with the X-ray fluorescence spectrometer analysis. Moreover, the polyimide film has a high transmittance, which can allow the X-ray to pass through and irradiate on the sample solution. The polyimide film will not cause significant absorption or diffraction of the X-ray and can maintain the original X-ray intensity.

[0046] In some embodiments, the thickness of the sealing film 04 is 0.03 mm to 0.05 mm. When the thickness of the sealing film 04 is 0.03 mm to 0.05 mm, the sampling circulation cup provided in this embodiment has good compressive and light-transmitting properties.

[0047] In some embodiments, referring to Figure 1 , the irradiation window 03 can be a circular window. In this embodiment, the irradiation window 03 being a circular window can make the forces on all parts of the sampling flow-through cup uniform, and it is not easy to deform and rupture due to uneven pressure, so the sampling flow-through cup can be more durable. For example, in this embodiment, the diameter of the irradiation window 03 can be 23 millimeters.

[0048] In some embodiments, referring to Figure 1 , the sampling flow-through cup further includes a sealing ring 08. For example, the sealing ring 08 can be an O-ring. The flow-through cup body is also provided with a groove, which is arranged around the irradiation window 03 and is used to accommodate the sealing ring 08 so that the sealing ring 08 is located between the sealing film 04 and the flow-through cup body 01.

[0049] In this embodiment, by providing the groove and placing the sealing ring 08 between the sealing film 04 and the flow-through cup body 01, the sealing performance of the sampling flow-through cup can be increased, and the problem of liquid leakage can be prevented.

[0050] In some embodiments, referring to Figure 2 , the sampling flow-through cup further includes a first pipeline interface 09 and a second pipeline interface 10. The first pipeline interface 09 is connected to the sampling inlet 07, and the second pipeline interface 10 is connected to the reflux port 06.

[0051] In this embodiment, by connecting the first pipeline interface 09 to the sampling inlet 07 and the second pipeline interface 10 to the reflux port 06, it can prevent the sampling inlet 07 or the reflux port 06 from detaching from the sampling flow-through cup due to the excessive impact force when the sample solution flows into the sampling inlet 07 or the sample solution flows out of the reflux port 06.

[0052] In some embodiments, Figure 3 is a schematic structural diagram of a sealing film provided in some embodiments of the present application. Figure 4 is a schematic structural diagram of a fixing plate provided in some embodiments of the present application. Referring to Figure 1 , Figure 3 and Figure 4 , the sealing film 04 and the fixing plate 05 can both be square. The sealing film 04 is provided with a first through hole 041, the fixing plate 05 is provided with a second through hole 051, the flow-through cup body is provided with a threaded hole 011, and the sampling flow-through cup further includes a bolt 11. The bolt 11 passes through the second through hole 051 and the first through hole 041 and is threadedly connected to the threaded hole 011.

[0053] Specifically, referring to Figure 3 and Figure 4, the first through hole 041, the second through hole 051, and the threaded hole 011 can all be 4 in number, and the first through hole 041 and the second through hole 051 can be correspondingly arranged. The 4 first through holes 041 can be distributed at the four corners of the sealing film 04, and the 4 second through holes 051 can be distributed at the four corners of the fixing plate 05.

[0054] In some embodiments, referring to Figure 4 , the fixing plate 05 is further provided with a third through hole 052 for exposing the irradiation window 03.

[0055] In some embodiments, the sampling flow cup is made of polyvinyl chloride.

[0056] The polyvinyl chloride material has excellent light transmittance and corrosion resistance, and the polyvinyl chloride material will not react with the substances in the sample solution and will not contaminate the elements in the sample solution.

[0057] Figure 5 Schematic diagram of a sampling flow cup provided by some embodiments of the present application for X-ray fluorescence spectrometer analysis. Referring to Figure 5 , the sampling flow cup may further include a first sampling pipeline 12 and a second sampling pipeline 13. The first sampling pipeline 12 is connected to the first pipeline interface 09, and the second sampling pipeline 13 is connected to the second pipeline interface 10. The X-ray fluorescence spectrometer 14 can emit X-rays, and the emitted X-rays can pass through the irradiation window 03 and irradiate the sample solution and then be transmitted back to the X fluorescence by the irradiation window 03.

[0058] In practical applications, a peristaltic pump can be used for circulating sampling. The first sampling pipeline 12 and the second sampling pipeline 13 can be made of polytetrafluoroethylene tubes, and the inner diameter of the polytetrafluoroethylene tubes can be 4 mm, and the outer diameter can be 6 mm.

[0059] Those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments, the combination of features of different embodiments means that it is within the scope of the present application and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0060] The above is the case. The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A sampling flow-through cup, characterized in that, The sampling flow cup includes: a flow cup body, a solution flow groove, an irradiation window, a sealing film, a fixing plate, a reflux port, and a sampling port; The solution flow groove is arranged inside the flow cup body, and a solution flow branch is further provided on the solution flow groove, and the solution flow branch is perpendicular to the solution flow groove; An irradiation window is arranged on the flow cup body, and the irradiation window is the outlet of the solution flow branch; The sealing film is used to seal the irradiation window; The fixing plate is used to fix the sealing film to the flow cup body; The solution flow groove is further provided with a first port and a second port. The first port is communicated with the sampling port, and the second port is communicated with the reflux port. The sample solution flows in from the sampling port, flows through the solution flow branch, and flows out from the reflux port.

2. The sampling flow-through cup according to claim 1, wherein, In the direction of gravity, the position of the second port is higher than the position of the irradiation window, and the position of the irradiation window is higher than the position of the first port.

3. The sampling flow cup according to claim 1, wherein The sealing film is a polyimide film.

4. The sampling flow cup according to claim 3, wherein, The thickness of the sealing film is 0.03 mm to 0.05 mm.

5. The sampling flow cup according to claim 1, characterized in that, The irradiation window is a circular window.

6. The sampling flow cup according to claim 1, wherein, The sampling flow cup further includes a sealing ring. The flow cup body is further provided with a groove, and the groove is arranged around the irradiation window. The groove is used to accommodate the sealing ring so that the sealing ring is located between the sealing film and the flow cup body.

7. The sampling flow-through cup according to claim 1, wherein The sampling flow cup further includes a first pipeline interface and a second pipeline interface. The first pipeline interface is connected to the sampling port, and the second pipeline interface is connected to the reflux port.

8. The sampling flow-through cup according to claim 1, characterized in that, The sealing film is provided with a first through hole, the fixing plate is provided with a second through hole, the flow cup body is provided with a threaded hole, and the sampling flow cup further includes a bolt. The bolt passes through the second through hole and the first through hole and is threadedly connected to the threaded hole.

9. The sampling flow cup according to claim 1, wherein, The fixing plate is further provided with a third through hole, and the third through hole is used to expose the irradiation window.

10. The sampling flow cup according to claim 1, characterized in that, The sampling flow cup is made of polyvinyl chloride.

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