CN113552157A - X-ray fluorescence spectrometer and sample cup protection piece thereof - Google Patents
X-ray fluorescence spectrometer and sample cup protection piece thereof Download PDFInfo
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- CN113552157A CN113552157A CN202010353316.4A CN202010353316A CN113552157A CN 113552157 A CN113552157 A CN 113552157A CN 202010353316 A CN202010353316 A CN 202010353316A CN 113552157 A CN113552157 A CN 113552157A
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- sample cup
- wall
- opening
- film
- guard
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- 238000004876 x-ray fluorescence Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 239000012528 membrane Substances 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000000523 sample Substances 0.000 description 74
- 239000010408 film Substances 0.000 description 35
- 229910052790 beryllium Inorganic materials 0.000 description 4
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/223—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/2204—Specimen supports therefor; Sample conveying means therefore
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The application provides an X ray fluorescence spectrometer and sample cup guard spare thereof for place the sample cup, includes: the supporting wall is provided with a through opening, the top surface of the supporting wall is provided with a plurality of bosses arranged around the opening, and the top end surfaces of the bosses are coplanar; a first film fixed on the bottom surface of the support wall and closing the opening from the bottom side. This application X ray fluorescence spectrometer's sample cup guard spare makes and forms open space between first film and the sample cup through setting up of boss, can supply to volatilize by the volatile liquid that the sample cup oozed, reduces the pollution to first film, need not to change first film frequently, has reduced operator's work load, has also reduced the detection cost simultaneously.
Description
Technical Field
The application relates to an X-ray fluorescence spectrometer and a sample cup protection piece thereof.
Background
The front end of the detector of the X-ray fluorescence analyzer is a layer of fragile thin beryllium window, and if the thin beryllium window is broken carelessly, a detector which is expensive is scrapped. The detector is usually close to the sample to be analyzed, and the detector is located below the sample under most conditions, although the sample to be analyzed is placed in the sample cup, the bottom of the sample cup is provided with a plastic film with micron-sized thickness, in order to protect the detector, a layer of protective film is usually additionally arranged at the position where the sample cup is placed on the instrument, and when the film of the sample cup is damaged and leaks the sample, the sample cannot pollute the beryllium window of the detector. However, the sample oozed out through the sample cup directly contaminates the protective film, and the contaminated protective film affects the next detection, so that the protective film needs to be frequently replaced, thereby increasing the workload of operators and the detection cost.
Accordingly, there is a need for improvements to existing X-ray fluorescence spectrometers and their sample cup shields.
Disclosure of Invention
The application provides an X-ray fluorescence spectrometer and a sample cup protection piece thereof, which can reduce the replacement frequency of a thin film of the sample cup protection piece.
Specifically, the method is realized through the following technical scheme: a sample cup guard for holding a sample cup, comprising: the supporting wall is provided with a through opening, the top surface of the supporting wall is provided with a plurality of bosses arranged around the opening, and the top end surfaces of the bosses are coplanar; a first film fixed on the bottom surface of the support wall and closing the opening from the bottom side. The boss of sample cup guard makes and forms open space between first film and the sample cup, can supply to volatilize by the volatile liquid that the sample cup oozes, has reduced the pollution to first film, need not to change first film frequently, has reduced operator's work load, has also reduced detection cost simultaneously.
According to one embodiment of the present application, the height of the boss is 0.2mm to 1 mm. This dimension can provide a space for volatilization while ensuring detection accuracy.
According to an embodiment of the application, the main body further comprises a side wall extending upward from the supporting wall, and the supporting wall and the side wall jointly form a containing cavity. A cup-shaped sample cup guard may better protect sample cup a.
According to an embodiment of the application, the sample cup guard further comprises a snap ring fitted over the outer side of the side wall, the edge of the first membrane being clamped between the side wall and the snap ring for secure fixation of the first membrane.
According to an embodiment of this application, sample cup guard still includes the sealing washer, the lateral surface of lateral wall is equipped with the location the recess of sealing washer, the sealing washer cover is in the outside of lateral wall, the snap ring orientation the lateral wall extrusion the sealing washer. The assembly of the sample cup guard can be simplified while the fitting accuracy of the main body and the retainer ring can be reduced.
According to an embodiment of the present application, the top of the side wall is provided with a stopping portion for stopping the snap ring, so that the position of the snap ring can be accurately positioned.
According to an embodiment of the application, the bosses are evenly distributed around the opening in a radial shape. The boss can be ensured to support the sample cup A stably.
According to an embodiment of the application, the main part still includes from the lateral wall that the support wall upwards extends, the one end of boss with the lateral wall is connected, and the other end extends to the opening. Such an arrangement can enhance the strength of the support wall.
According to an embodiment of the application, the support wall and the opening are both circular, the support wall is provided with at least 3 of the bosses, which extend in the radial direction of the support wall.
The application also provides the following technical scheme: an X-ray fluorescence spectrometer comprises a front sample cup protection piece and a sample cup, wherein the sample cup is carried on a boss of the sample cup protection piece, and a second thin film is arranged at the bottom of the sample cup. The boss of sample cup guard makes and forms open space between first film and the sample cup, can supply to volatilize by the volatile liquid that the sample cup oozes, has reduced the pollution to first film, need not to change first film frequently, has reduced operator's work load, has also reduced detection cost simultaneously.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
FIG. 1 is a perspective assembly view of a sample cup shield according to one embodiment of the present application.
Fig. 2 is an exploded perspective view of a sample cup guard according to one embodiment of the present application.
Figure 3 is a cross-sectional view of the sample cup guard of figure 1.
Description of reference numerals:
the sample cup comprises a main body 1, a first film 2, a supporting wall 11, an opening 12, a boss 13, a side wall 14, an accommodating cavity 15, a groove 16, a stopping part 17, a clamping ring 3, a sealing ring 4 and a sample cup A.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of devices, systems, apparatuses, and methods consistent with certain aspects of the present application, as detailed in the appended claims.
Referring to fig. 1 to 3, the present application relates to a sample cup guard, which is applied to an X-ray fluorescence spectrometer and used for placing a sample cup a. The sample cup guard is provided with a body 1 and a first film 2 fixed to the bottom surface of the body 1. A second film (not shown) is provided on the bottom of the sample cup A. The thicknesses of the first film 2 and the second film are both in the micron order, and the smaller the film thickness is, the smaller the influence on the test is, but the smaller the film thickness is, the more difficult the processing is, and the higher the cost is, therefore, the thicknesses of the first film 2 and the second film are preferably 2-20 microns. During detection, the detector of the X-ray fluorescence spectrometer is located below the sample cup protection member and close to the sample cup protection member, and the sample in the sample cup a is detected and analyzed through the first film 2 of the sample cup protection member and the second film of the sample cup a. Even if the sample in sample cup a leaks or oozes out, it will only affect the sample cup guard, which acts to protect the probe, and will not contaminate the thin beryllium window.
The body 1 is provided with a support wall 11, the support wall 11 is provided with a through opening 12, and the first film 2 is fixed on the bottom surface of the support wall 11 and closes the opening 12 from the bottom side. The top surface of the supporting wall 11 is provided with a plurality of bosses 13 arranged around the opening 12, the heights of the bosses 13 are the same, the top end surfaces are coplanar, and the sample cup A is carried on the bosses 13. The boss 13 of the sample cup protection part forms an open space between the first film 2 and the second film of the sample cup A, when a volatile liquid sample, such as gasoline, is tested, even if the sample seeps out of the sample cup A, the sample can be volatilized due to the existence of the open space 10 and is not condensed on the first film 2 any more, so that the pollution to the first film 2 is reduced, the replacement frequency of the first film 2 is correspondingly reduced, the first film does not need to be frequently replaced, the workload of an operator is reduced, and the detection cost is also reduced.
In this embodiment, the height of boss 13 is 0.2mm ~ 1mm, and the high height of boss 13 leads to the sample testing face to be far away from the detector, reduces the detector count rate, and the influence detects, and the height of boss 13 is crossed lowly and then can't guarantee the size of open space 10, and the sample of volatilizing can not circulate, makes the boss play the effect that should not have, and this size can provide certain space of volatilizing when guaranteeing to detect the precision. For the same reason, the thickness of the supporting wall 11 is 0.2 mm-1 mm; too large a thickness of the support wall 11 reduces the detector count rate and too small a thickness results in machining difficulties.
In this embodiment, the main body 1 of the sample cup guard is cup-shaped, and further includes a side wall 14 extending upward from the support wall 11, and the support wall 11 and the side wall 14 together form a receiving cavity 15 for receiving the sample cup a. The cup-shaped sample cup protection piece can better protect the sample cup A, is suitable for being applied to an automatic sample conveying system and can drive the sample cup A to move together.
The sample cup guard further comprises a retainer ring 3 fitted around the outside of the side wall 14, and when assembled, the first film 2 is first laid on the bottom surface of the support wall 11, and then the retainer ring 3 is covered so that the edge of the first film 2 is held between the side wall 14 and the retainer ring 3, thereby enabling the first film 2 to be securely fixed and smoothly laid on the bottom side of the opening 12.
The sample cup guard further comprises a plurality of sealing rings 4, the outer side of the side wall 14 of the body 1 being provided with a plurality of annular grooves 16 in which each sealing ring 4 is located, the sealing rings 4 being fitted over the outer side of the side wall 14, the snap ring 3 in turn being fitted over the outer side of the side wall 14 and pressing the sealing rings 4 towards the side wall 14. The assembly of the sample cup guard can be simplified by holding the snap ring 3 on the side wall 14 of the body 1 by the frictional force of the deformed seal ring 4 against the snap ring 3 while clamping the first film 2; meanwhile, the matching precision of the main body 1 and the clamping ring 3 can be reduced, and the processing cost is correspondingly reduced.
The top of the side wall 14 of the main body 1 is further provided with a stopping part 17 for stopping the snap ring 3, so that the snap ring 3 can be prevented from being excessively assembled, and the position of the snap ring 3 can be accurately positioned. The bottom surface of the clamping ring 3 can be slightly higher than the bottom surface of the supporting wall 11, so that the influence on the distance between the probe and the first film 2 and the influence on the analysis precision are avoided.
Referring back to fig. 3, in the present embodiment, the cup guard is circular, the support wall 11 and the opening 12 are both circular, the cup a is also circular, the size of the cup a can be smaller than that of the support wall 11, and a gap is formed between the side wall 14 and the cup a, so that the open space 10 at the boss 13 can communicate with the outside and the liquid can be volatilized. The bosses 13 are evenly distributed around the opening 12 in a radial manner to ensure a smooth support of the sample cup a.
In the present embodiment, the support wall 11 is provided with at least 3 of the aforementioned bosses 13, each boss 13 being strip-shaped and extending in the radial direction. One end of each boss 13 extends to the side wall 14, the other end of the boss 13 extends to the opening 12, and the strength of the support wall 11 can be improved by connecting the bosses 13 with the side walls 14. In addition, the width of the boss 13 should not be too wide, so as to avoid affecting the flow performance of the open space 10.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
Terms such as "upper," "lower," "left," "right," "front," "back," "thickness," "radial," "axial," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one feature's relationship to another feature as illustrated in the figures, and are not limited to one position or one spatial orientation. It will be understood that the spatially relative positional terms may be intended to encompass different orientations than those shown in the figures depending on the product presentation position and should not be construed as limiting the claims. In addition, the descriptor "horizontal" as used herein is not entirely equivalent to allowing an angular tilt along a direction perpendicular to the direction of gravity.
The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items.
It should be noted that when an element is referred to as being "secured …" to another element, it can be directly on the surface of the other element or can be spaced apart from the surface of the other element. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected or detachably connected or integrated; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It should be understood that the use of "first," "second," and similar terms in the description and claims do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. "plurality" or "multiple layers" and the like mean two or more.
The X-ray fluorescence spectrometer of the present application is only a preferred embodiment of the present application, and should not be limited to the present application, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A sample cup guard for placing a sample cup (A), characterized in that it comprises:
the supporting device comprises a main body (1), wherein the main body (1) is provided with a supporting wall (11), the supporting wall (11) is provided with a through opening (12), the top surface of the supporting wall (11) is provided with a plurality of bosses (13) arranged around the opening (12), and the top end surfaces of the bosses (13) are coplanar;
a first film (2), said first film (2) being fixed to the bottom surface of said support wall (11) and closing said opening (12) by the bottom side.
2. The sample cup guard of claim 1, wherein: the height of the boss (13) is 0.2 mm-1 mm.
3. The sample cup guard of claim 1, wherein: the main body (1) further comprises a side wall (14) extending upwards from the supporting wall (11), and the supporting wall (11) and the side wall (14) jointly form a containing cavity (15).
4. The sample cup guard of claim 3, wherein: the sample cup guard further comprises a snap ring (3) fitted over the outside of the side wall (14), the edge of the first membrane (2) being clamped between the side wall (14) and the snap ring (3).
5. The sample cup guard of claim 4, wherein: sample cup guard still includes sealing washer (4), the lateral surface of lateral wall (14) is equipped with the location recess (16) of sealing washer (4), sealing washer (4) cover is in the outside of lateral wall (14), snap ring (3) orientation lateral wall (14) extrusion sealing washer (4).
6. The sample cup guard of claim 4, wherein: the top of the side wall (14) is provided with a stopping part (17) for stopping the clamping ring (3).
7. The sample cup guard of claim 1, wherein: the bosses (13) are uniformly distributed around the opening (12) in a radial shape.
8. The sample cup guard of claim 7, wherein: the main body (1) further comprises a side wall (14) extending upwards from the support wall (11), one end of the boss (13) is connected with the side wall (14), and the other end of the boss extends to the opening (12).
9. The sample cup guard of claim 8, wherein: the support wall (11) and the opening (12) are both circular, the support wall (11) is provided with at least 3 bosses (13), and the bosses (13) extend along the radial direction of the support wall (11).
10. An X-ray fluorescence spectrometer, comprising: comprising a sample cup shield according to any one of claims 1 to 9 and a sample cup (a), wherein the sample cup (a) is carried on a boss (13) of the sample cup shield, and the bottom of the sample cup (a) is provided with a second membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010353316.4A CN113552157A (en) | 2020-04-23 | 2020-04-23 | X-ray fluorescence spectrometer and sample cup protection piece thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010353316.4A CN113552157A (en) | 2020-04-23 | 2020-04-23 | X-ray fluorescence spectrometer and sample cup protection piece thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113552157A true CN113552157A (en) | 2021-10-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010353316.4A Pending CN113552157A (en) | 2020-04-23 | 2020-04-23 | X-ray fluorescence spectrometer and sample cup protection piece thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113552157A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4917301A (en) * | 1988-11-15 | 1990-04-17 | International Flavors & Fragrances, Inc. | Container with microporous membrane for dispensing vapor from volatile liquid |
| JPH09127028A (en) * | 1996-10-19 | 1997-05-16 | Horiba Ltd | Fluorescent x-ray analytical apparatus |
| US6428751B1 (en) * | 2000-09-06 | 2002-08-06 | Monte J. Solazzi | Self-centering sample cup assembly |
| WO2004088296A1 (en) * | 2003-03-28 | 2004-10-14 | Rigaku Industrial Corporation | Fluorescent x-ray analyzer |
| JP2011117835A (en) * | 2009-12-03 | 2011-06-16 | Horiba Ltd | Sample cell assembly implement |
| CN203011862U (en) * | 2012-12-24 | 2013-06-19 | 国家地质实验测试中心 | Sample box for X-ray fluorescence spectroscopy analysis |
| CN203069534U (en) * | 2012-12-24 | 2013-07-17 | 国家地质实验测试中心 | Sample cup |
| CN204241437U (en) * | 2014-11-27 | 2015-04-01 | 苏州赛分科技有限公司 | High pressure liquid chromatography post stud bolt and high pressure liquid chromatography post |
| US20150226686A1 (en) * | 2014-02-13 | 2015-08-13 | Hitachi High-Tech Science Corporation | Sample Holder for X-Ray Analysis and Jig for Sample Installation |
| CN204664400U (en) * | 2014-12-31 | 2015-09-23 | 中铁十八局集团第一工程有限公司 | A kind of sealing ring of curve pipe curtain |
| CN106195475A (en) * | 2016-09-22 | 2016-12-07 | 庞浩佳 | Thin-wall stainless steel and the new Joining Structure of pipe joint |
-
2020
- 2020-04-23 CN CN202010353316.4A patent/CN113552157A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4917301A (en) * | 1988-11-15 | 1990-04-17 | International Flavors & Fragrances, Inc. | Container with microporous membrane for dispensing vapor from volatile liquid |
| JPH09127028A (en) * | 1996-10-19 | 1997-05-16 | Horiba Ltd | Fluorescent x-ray analytical apparatus |
| US6428751B1 (en) * | 2000-09-06 | 2002-08-06 | Monte J. Solazzi | Self-centering sample cup assembly |
| WO2004088296A1 (en) * | 2003-03-28 | 2004-10-14 | Rigaku Industrial Corporation | Fluorescent x-ray analyzer |
| JP2011117835A (en) * | 2009-12-03 | 2011-06-16 | Horiba Ltd | Sample cell assembly implement |
| CN203011862U (en) * | 2012-12-24 | 2013-06-19 | 国家地质实验测试中心 | Sample box for X-ray fluorescence spectroscopy analysis |
| CN203069534U (en) * | 2012-12-24 | 2013-07-17 | 国家地质实验测试中心 | Sample cup |
| US20150226686A1 (en) * | 2014-02-13 | 2015-08-13 | Hitachi High-Tech Science Corporation | Sample Holder for X-Ray Analysis and Jig for Sample Installation |
| CN204241437U (en) * | 2014-11-27 | 2015-04-01 | 苏州赛分科技有限公司 | High pressure liquid chromatography post stud bolt and high pressure liquid chromatography post |
| CN204664400U (en) * | 2014-12-31 | 2015-09-23 | 中铁十八局集团第一工程有限公司 | A kind of sealing ring of curve pipe curtain |
| CN106195475A (en) * | 2016-09-22 | 2016-12-07 | 庞浩佳 | Thin-wall stainless steel and the new Joining Structure of pipe joint |
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