CN211825650U - Liquid detection chamber and spectrum analyzer using same - Google Patents
Liquid detection chamber and spectrum analyzer using same Download PDFInfo
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- CN211825650U CN211825650U CN202020597614.3U CN202020597614U CN211825650U CN 211825650 U CN211825650 U CN 211825650U CN 202020597614 U CN202020597614 U CN 202020597614U CN 211825650 U CN211825650 U CN 211825650U
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Abstract
The utility model relates to a liquid detection room, including two solid fixed rings, two lens and a stereoplasm spacer that is used for controlling the optical distance, the lens is installed on solid fixed ring's centre bore one-to-one, two solid fixed ring fixed connection, and the setting of stereoplasm spacer is between two lens, forms the inner space that supplies liquid to flow between two piece at least lenses, sets up the feed liquor hole that is connected to inner space by the external world and goes out the liquid hole on the solid fixed ring. The fixing ring is circular, the lens is circular, and the hard spacer is circular. The utility model discloses still relate to a spectral analysis appearance for carrying out spectral analysis to liquid, spectral analysis appearance includes aforementioned liquid detection room. The invention can reduce the sample waste of a large amount of sample washing, reduce the cross contamination among samples and greatly improve the liquid detection sensitivity by the narrow optical path design.
Description
Technical Field
The utility model relates to a liquid spectral detection technical field, concretely relates to liquid detects room and uses its spectral analysis appearance.
Background
For the spectral detection of liquid, the automatic sample feeding brings great convenience to customers. The detection room that cooperates the autoinjection in the current spectrum analyzer generally adopts square wide optical path flow cell, needs a large amount of samples to detect the room sanitization when surveying appearance, extravagant a large amount of samples and still have the cross contamination problem. Also, when the absorbance of the sample is high, the wide optical path greatly reduces the transmitted spectrum signal, making detection very difficult.
Disclosure of Invention
The utility model aims at providing a narrow optical path can reduce cross contamination, improves the liquid detection room that detects the precision.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a liquid detection room, includes two solid fixed rings, two lenses and a stereoplasm spacer that is used for controlling the optical distance, the lens is installed one-to-one on solid fixed ring's centre bore, two gu fixed ring fixed connection, the setting of stereoplasm spacer is two between the lens, form the inner space that supplies liquid to flow between two piece at least lenses, gu seted up on the fixed ring and be connected to by the external world the feed liquor hole of inner space and go out the liquid hole.
The fixed ring is circular, the lens is circular, and the hard spacer is circular.
The liquid inlet hole and the liquid outlet hole are formed in the same fixing ring.
The liquid inlet hole and the liquid outlet hole are symmetrically arranged on two sides of the central hole of the fixing ring.
The fixing rings are provided with fixing hole positions, and the two fixing rings are fixedly connected through the fixing hole positions.
The fixing ring is provided with a mounting hole site, and the fixing ring is mounted on the spectrum analyzer through the mounting hole site.
The material of the fixing ring is metal.
The material of the fixing ring is aluminum alloy or stainless steel.
The lens is made of calcium fluoride or diamond.
The utility model also provides a spectral analysis appearance for carrying out spectral analysis to liquid, the spectral analysis appearance includes aforementioned liquid detection room.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the invention can reduce the sample waste of a large amount of sample washing, reduce the cross contamination among samples and greatly improve the liquid detection sensitivity by the narrow optical path design.
Drawings
Fig. 1 is a schematic view of a liquid detection chamber according to the present invention.
In the above drawings: 1. fixing hole positions; 2. a fixing ring; 3. a lens; 4. a liquid flow aperture; 5. and (6) installing hole sites.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings.
The first embodiment is as follows: a spectroscopic analyzer for spectroscopic analysis of a liquid includes a liquid detection chamber in which the liquid to be detected is circulated. As shown in FIG. 1, the liquid detection chamber comprises two fixed rings 2, two lenses 3 and a rigid spacer.
The fixed ring 2 is a circular ring with the same external dimension, is provided with a central hole and is made of metal materials such as aluminum alloy or stainless steel. Two solid fixed ring 2 fixed connection have seted up a plurality of fixed hole site 1 on two solid fixed ring 2 for two solid fixed ring 2 are through fixed hole site 1 and fixed connection. Still seted up a plurality of installation hole site 5 on two solid fixed rings 2 for solid fixed ring 2 is installed on the spectral analysis appearance through installation hole site 5.
The lens 3 is round and made of calcium fluoride or diamond. The lenses 3 are mounted on the center holes of the fixing rings 2 in a one-to-one correspondence, and are located inside the fixing rings 2, i.e., on the side close to the other fixing ring 2. It is possible to notch the inside of the fixing ring 2 and to embed the lens 3 in the notch.
The hard spacer is disposed between the two lenses 3, so that an inner space for liquid to flow is formed between at least the two lenses 3, and is used for controlling the distance between the two lenses 3, that is, the thickness of the liquid between the lenses 3, that is, the distance through which light passes, that is, the optical length can be controlled by the thickness of the hard spacer. The optical path can be set according to the detection requirement, and can span hundreds of micrometers to tens of micrometers, namely, the thickness of the hard spacer is hundreds of micrometers to tens of micrometers. The hard spacer can be in the shape of a ring.
The fixed ring 2 is also provided with a liquid inlet hole and a liquid outlet hole which are connected to the inner space from the outside, and the liquid inlet hole and the liquid outlet hole are collectively called as a liquid circulation hole 4. The liquid inlet hole and the liquid outlet hole can be arranged on the same fixed ring 2, and the liquid inlet hole and the liquid outlet hole are symmetrically arranged on two sides of a center hole of the fixed ring 2. Thus, the liquid inlet hole, the inner space and the liquid outlet hole form a liquid circulation channel. The annular hard spacer should be outside the liquid flow channel. If the liquid inlet and outlet holes correspond to the lenses 3, the lenses 3 should be provided with through holes.
The liquid detection chamber is a narrow optical path liquid detection chamber, is applied to the spectroscopic detection of liquid samples, and is suitable for the transmission detection of ultraviolet, visible light, near infrared, intermediate infrared and Raman spectrums of liquid. Through the application of the scheme, a large amount of samples do not need to be wasted, the detection chamber is pre-washed, the design of the circular detection chamber can greatly reduce the cross contamination among the samples, the circular detection chamber is suitable for high-absorbance samples, the detection sensitivity of the circular detection chamber is greatly improved, and the circular detection chamber is suitable for the spectrum method detection of the chemical component content of wine or other liquid samples.
One example is: the calcium fluoride lens 3 is used, the thickness of the hard spacer is set to be 37 micrometers, namely the optical path is 37 micrometers, the liquid detection chamber is installed to a mid-infrared spectrum analyzer for spectrum scanning and detection, and the contents of components such as alcohol, total acid, total ester, ethyl caproate, ethyl acetate, ethyl lactate and ethyl butyrate of a white spirit sample are measured, and the following table is shown:
TABLE 1 repeatability results for mid-infrared analysis of a certain white spirit sample
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A liquid detection chamber, characterized by: the liquid detection room includes two solid fixed rings, two lenses and a stereoplasm spacer that is used for controlling the optical distance, the lens is installed one-to-one on solid fixed ring's centre bore, two gu fixed ring fixed connection, the stereoplasm spacer sets up two between the lens, form the inner space that supplies liquid to flow between two piece at least lenses, gu seted up on the fixed ring and be connected to by the external world the feed liquor hole in inner space and play liquid hole.
2. The liquid detection chamber of claim 1, wherein: the fixed ring is circular, the lens is circular, and the hard spacer is circular.
3. The liquid detection chamber of claim 1, wherein: the liquid inlet hole and the liquid outlet hole are formed in the same fixing ring.
4. The liquid detection chamber of claim 1, wherein: the liquid inlet hole and the liquid outlet hole are symmetrically arranged on two sides of the central hole of the fixing ring.
5. The liquid detection chamber of claim 1, wherein: the fixing rings are provided with fixing hole positions, and the two fixing rings are fixedly connected through the fixing hole positions.
6. The liquid detection chamber of claim 1, wherein: the fixing ring is provided with a mounting hole site, and the fixing ring is mounted on the spectrum analyzer through the mounting hole site.
7. The liquid detection chamber of claim 1, wherein: the material of the fixing ring is metal.
8. The liquid detection chamber of claim 7, wherein: the material of the fixing ring is aluminum alloy or stainless steel.
9. The liquid detection chamber of claim 1, wherein: the lens is made of calcium fluoride or diamond.
10. A spectroscopic analyzer for performing spectroscopic analysis of a liquid, comprising: the spectrum analyzer comprising a liquid detection chamber as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020597614.3U CN211825650U (en) | 2020-04-21 | 2020-04-21 | Liquid detection chamber and spectrum analyzer using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020597614.3U CN211825650U (en) | 2020-04-21 | 2020-04-21 | Liquid detection chamber and spectrum analyzer using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211825650U true CN211825650U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020597614.3U Active CN211825650U (en) | 2020-04-21 | 2020-04-21 | Liquid detection chamber and spectrum analyzer using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211825650U (en) |
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2020
- 2020-04-21 CN CN202020597614.3U patent/CN211825650U/en active Active
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