CN209764716U - Infrared spectroscopic analysis sample preparation support - Google Patents
Infrared spectroscopic analysis sample preparation support Download PDFInfo
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- CN209764716U CN209764716U CN201920130021.3U CN201920130021U CN209764716U CN 209764716 U CN209764716 U CN 209764716U CN 201920130021 U CN201920130021 U CN 201920130021U CN 209764716 U CN209764716 U CN 209764716U
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- burette
- glass slide
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Abstract
The utility model belongs to the field of analysis and detection, in particular to an infrared spectrum analysis sample preparation bracket, which comprises a base, a slide bracket and a dropper bracket; the glass slide bracket comprises a glass slide support and a glass slide base, wherein three edges of the glass slide base are respectively provided with a glass slide blocking sheet, and the glass slide support is fixedly connected with the base and the glass slide base; the burette support comprises a burette support and a burette lantern ring, and the burette support, the base and the burette lantern ring are fixedly connected. The problem of poor reproducibility of the measured infrared spectrogram of the asphalt caused by uneven thickness of a KBr slide sample prepared for multiple times when the asphalt is detected by an infrared spectroscopy method is solved.
Description
Technical Field
The utility model belongs to the analysis and detection field, concretely relates to infrared spectroscopic analysis system appearance support.
background
The infrared spectrum obtains good application effect and economic benefit in the rapid analysis of petroleum products, the infrared spectrum technology is increasingly applied to the quality control of road asphalt, however, when the infrared spectrum technology is applied to the quantitative detection of road asphalt indexes, different test methods have the influence of a plurality of factors.
Taking the infrared spectroscopy method for fast detecting and analyzing the content of the modifier in the SBS modified asphalt as an example, the uniformity of the SBS modified asphalt in the preparation of the KBr slide sample and the consistency of repeated sample preparation are important factors influencing the detection result.
When preparing a KBr slide sample, the asphalt sample is dissolved in a proper solvent (such as carbon tetrachloride) to prepare a solution with the concentration of 1-10%, and the solution is uniformly dripped on the KBr slide for detection. The uniform thickness of the dripped sample is ensured and no impurities exist during sample dripping, but the consistency of the thickness of the prepared KBr slide sample during multiple measurements cannot be ensured due to the fact that the force, the height and the inclination of the slide are difficult to control during sample dripping.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the inventor invents a sample preparation bracket for infrared spectroscopic analysis. The problem of poor reproducibility of the measured infrared spectrogram of the asphalt caused by uneven thickness of a KBr slide sample prepared for multiple times when the asphalt is detected by an infrared spectroscopy method is solved.
The infrared spectrum analysis sample preparation bracket comprises a base, a slide bracket and a dropper bracket;
The glass slide bracket comprises a glass slide support column and a glass slide base, wherein three edges of the glass slide base are respectively provided with a glass slide blocking sheet, and the glass slide support column is fixedly connected (for example, welded) with the base and the glass slide base; the slide separation blade can make KBr slide card on the slide base, fixes its position, has avoided because of carelessly touching the displacement problem that the maloperation leads to such as waiting.
The burette bracket comprises a burette support and a burette lantern ring, and the burette support is fixedly connected with the base and the burette lantern ring; the dropper for dropping a sample for a general test can be fixed at an appropriate height.
Preferably, the height of the slide supports is adjustable; the height adjustment can be realized through the telescopic link device, and the dropper with different lengths can be adapted to the height of the glass slide support, so that the height of a dropwise added sample can be better controlled.
Preferably, the slide base is inclined, the angle of the slide base to the horizontal plane being 0-90 °, preferably 0-45 °; the inclination of the glass slide base can ensure that the dripped liquid sample flows for a certain distance under the action of gravity, so that the residual traces of the prepared liquid sample on the glass slide are thin and uniform, the infrared spectrum detection is favorably carried out subsequently, and the analysis result is ensured.
More preferably, the base is made of stainless steel material, the length of the base is 160mm, the width of the base is 100mm, and the height of the base is 10 mm; the slide retaining sheet is made of stainless steel material, and the thickness of the slide retaining sheet is 2-3 mm; more preferably, the slide base is of a cuboid structure, is made of stainless steel materials, and has a length of 2.3mm, a width of 4.1mm and a thickness of 0.45 mm;
More preferably, the slide pillar is a cylinder structure, is made of stainless steel material, has a height of 60-80mm and a diameter of 8-10 mm;
More preferably, the dropper support is made of stainless steel material, and the height of the dropper support is 200-220 mm;
The base, the slide support column and the dropper support column are all made of stainless steel materials and have reasonable proportion ranges of various parameters, so that on one hand, certain weight of the infrared spectroscopic analysis sample preparation support is ensured, the infrared spectroscopic analysis sample preparation support is not easy to displace or topple, and the sample preparation process can be smoothly carried out; on the other hand, the device can better adapt to a wide range of potassium bromide slides and the height of a dropper which is conventionally used in the field.
More preferably, the dropper lantern ring is made of silicon rubber materials, the height of the dropper lantern ring is 8-10mm, the inner diameter of the dropper is 7-8mm, and the outer diameter of the dropper is 11-12 mm; the silicon rubber material has good toughness, good atmospheric aging resistance and low cost; the inner diameter of 7-8mm can adapt to the size of a dropper model used for routine tests in the field.
In summary, the infrared spectroscopic analysis sample preparation bracket can fix the height of the dropper and the inclination of the glass slide when the sample is dripped, so that the thickness and the uniformity of the KBr glass slide sample prepared for many times are effectively controlled, the reproducibility of infrared spectroscopy of many times of parallel tests is ensured, and the analysis error is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an infrared spectrum of a KBr slide sample prepared by the present invention;
In the figure 1, 1 is a base, 2 is a slide support, 3 is a dropper support, 2-1 slide base, 2-2 slide support, 2-3 is a slide retaining sheet, 2-4 is a slide support adjusting button, 3-1 dropper support and 3-2 dropper lantern ring.
Detailed Description
In order to make the technical solution of the present invention clearer, the following description, with reference to the accompanying drawings, further illustrates the present invention in detail, and the specific examples described herein are only used for explaining the present invention, and are not used for limiting the present invention.
As shown in fig. 1, the utility model provides an infrared spectroscopic analysis sample preparation bracket, which comprises a base 1, a slide bracket 2 and a dropper bracket 3; the slide bracket 2 comprises a slide support 2-2, a slide base 2-1, three edges of the slide base 2-1 are respectively provided with a slide block 2-3, and the slide support 2-2 is fixedly connected with the base 1 and the slide base 2-1; the burette bracket 3 comprises a burette support 3-1 and a burette lantern ring 3-2, and the burette support 3-1 is fixedly connected with the base 1 and the burette lantern ring 3-2.
In the specific implementation process, a cylindrical glass slide support 2-2 with telescopic length is welded on a stainless steel base 1 with the length of 160mm, the width of 100mm and the height of 10mm, the glass slide support 2-2 is made of stainless steel materials, the height of the glass slide support is 60-80mm, and the diameter of the glass slide support is 8mm-10 mm; adjusting the proper height of the slide support 2-2 by adjusting an adjusting nut 2-4 of the slide support; a cuboid slide base 2-1 made of stainless steel material is welded on the slide support 2-2, the length is 2.3mm, the width is 4.1mm, the thickness is 0.45mm, and the angle between the slide base 2-1 and the horizontal plane is 30 degrees; welding slide retaining pieces 2-3 made of stainless steel materials and having the thickness of 2-3mm at the lower, left and right edges of the slide base 2-1; a dropper support 3-1 is welded on the base 1 by adjusting a proper position, the dropper support 3-1 is made of stainless steel materials, and the height of the dropper support is 200-220 mm; a burette lantern ring 3-2 is welded on the burette support 3-1, the burette lantern ring 3-2 is made of silicon rubber materials, the height of the burette lantern ring is 8-10mm, the inner diameter of the burette lantern ring is 7-8mm, and the outer diameter of the burette lantern ring is 11-12 mm.
in specific implementations, the slide supports 2-2 are adjusted to the appropriate height according to the length of the pipette, a potassium bromide slide is placed on the slide base 2-1, a liquid sample is aspirated into the pipette, placed in the pipette collar 3-2, and an appropriate sample is dropped onto the potassium bromide slide, which moves downward under the force of gravity, leaving a thin film of the sample on the potassium bromide slide, which is then further processed and analyzed.
The potassium bromide glass slide sample preparation of certain asphalt is carried out by using the infrared spectrum analysis sample preparation bracket, the infrared spectrogram of two parallel tests is measured by the test and is shown in figure 2, the similarity of the repeat 1 and the repeat 2 is 0.0128 through Matlab analysis, namely the similarity is as high as 98.72 percent, the uniformity and the thickness of the prepared sample are ensured by using the infrared spectrum analysis sample preparation bracket, and the reproducibility of the spectrogram measured by an infrared spectrum smearing method is effectively ensured.
Claims (6)
1. An infrared spectroscopic analysis sample preparation bracket is characterized by comprising a base (1), a slide bracket (2) and a dropper bracket (3); the glass slide bracket (2) comprises a glass slide support column (2-2) and a glass slide base (2-1), three edges of the glass slide base (2-1) are respectively provided with a glass slide blocking piece (2-3), and the glass slide support column (2-2) is fixedly connected with the base (1) and the glass slide base (2-1); the burette bracket (3) comprises a burette support (3-1) and a burette lantern ring (3-2), and the burette support (3-1) is fixedly connected with the base (1) and the burette lantern ring (3-2).
2. An infrared spectroscopic sample preparation rack according to claim 1, wherein the height of said slide supports (2-2) is adjustable.
3. An infrared spectroscopic analysis sample holder as set forth in claim 1 wherein the slide base (2-1) is inclined and the slide base (2-1) is at an angle of 0-90 ° to the horizontal.
4. An infrared spectroscopic sample preparation rack according to claim 3, wherein the slide base (2-1) is at an angle of 0-45 ° to the horizontal.
5. An infrared spectroscopic analysis sample preparation holder according to claim 1, wherein the dropper collar (3-2) is made of silicone rubber, and has a height of 8-10mm, an inner diameter of 7-8mm and an outer diameter of 11-12 mm.
6. An infrared spectroscopic analysis sample preparation holder according to claim 1, wherein the base (1) is made of stainless steel material and has a length of 160mm, a width of 100mm and a height of 10 mm; the slide block sheet (2-3) is made of stainless steel materials, and the thickness of the slide block sheet (2-3) is 2-3 mm; the slide base (2-1) is of a cuboid structure and is made of stainless steel materials, the length of the slide base is 2.3mm, the width of the slide base is 4.1mm, and the thickness of the slide base is 0.45 mm; the slide pillar (2-2) is a cylinder structure, is made of stainless steel material, has a height of 60-80mm and a diameter of 8-10 mm; the dropper support (3-1) is made of stainless steel material, and the height of the dropper support is 200-220 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130021.3U CN209764716U (en) | 2019-01-25 | 2019-01-25 | Infrared spectroscopic analysis sample preparation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130021.3U CN209764716U (en) | 2019-01-25 | 2019-01-25 | Infrared spectroscopic analysis sample preparation support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209764716U true CN209764716U (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920130021.3U Active CN209764716U (en) | 2019-01-25 | 2019-01-25 | Infrared spectroscopic analysis sample preparation support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209764716U (en) |
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2019
- 2019-01-25 CN CN201920130021.3U patent/CN209764716U/en active Active
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