CN110567873B - Cuvette capable of being degassed - Google Patents
Cuvette capable of being degassed Download PDFInfo
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- CN110567873B CN110567873B CN201910900707.0A CN201910900707A CN110567873B CN 110567873 B CN110567873 B CN 110567873B CN 201910900707 A CN201910900707 A CN 201910900707A CN 110567873 B CN110567873 B CN 110567873B
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- cuvette
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/42—Low-temperature sample treatment, e.g. cryofixation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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Abstract
The invention discloses a cuvette capable of being degassed, which consists of a cuvette body for testing a sample, a spherical bin, a vacuum valve and a quartz tube for connecting the cuvette body, the spherical bin and the vacuum valve; the upper part of the cuvette body is connected with a vacuum valve through a quartz tube (2), the quartz tube (2) at the lower end of the vacuum valve is connected with another quartz tube which is at a right angle with the vacuum valve, and the quartz tube (4) is connected with a spherical bin. The cuvette can conveniently and effectively remove air in a sample to be detected under the condition of not needing a glove box, so that detection errors caused by air in spectrum detection are avoided, and the spectrum detection is better carried out. Experiments prove that the cuvette sample detection method is simple in operation, good in result and low in cost.
Description
Technical Field
The invention relates to a cuvette, in particular to a cuvette capable of being degassed. Belongs to the technical field of spectral analysis.
Background
The cuvette is named as an absorption cell and a sample cell, is an important accessory of a spectral analysis instrument, is used for containing sample liquid and reference liquid when carrying out quantitative or qualitative analysis on substances, and is widely applied to the industries of chemical engineering, medical treatment, metallurgy, food, environmental protection, water, electricity, petroleum and the like, and the testing and the chemical examination of colleges and scientific research institutions. The cuvette is generally made of quartz glass and optical glass by adopting the processes of high-temperature melting integration, high-temperature sintering of glass powder and the like.
Effect of air on use of color dish: when many organic samples are subjected to spectral analysis, air is dissolved in the samples, so that the purity of the organic samples is reduced, and the analysis and detection results are deviated. In order to avoid errors in results due to air dissolved in the sample, the sample is usually subjected to a degassing vacuum. Generally, the degassing treatment requires transferring the sample into a glove box, and the operation is complicated.
The cell shape is the cuboid, and usual degasification is handled and is cooled into the solid with the liquid sample, bleeds, if directly put into the liquid nitrogen with the cell body, liquid condenses into the solid in the cuboid, because each orientation atress is uneven in the cuboid, can lead to the cell body to explode and split. Through retrieval, the object or patent of the cuvette capable of degassing treatment, which can realize the transfer of the liquid sample in the cuboid cuvette body through the spherical bin, thereby realizing the quick and convenient operation of the liquid sample, is not reported yet.
Disclosure of Invention
In view of the above practical problems and the deficiencies of the prior art, the present invention provides a novel cuvette, i.e., a cuvette capable of being degassed. It can carry out degasification to the sample in the environment that does not need the glove box to can avoid the cell body can not explode when the degasification.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the degasified cuvette consists of a cuvette body (1) for testing a sample, a regional spherical bin (5) for storing gas, a vacuum valve (3) and a quartz tube for connecting the regional spherical bin and the vacuum valve; the method is characterized in that:
the cuvette body (1) is in a cuboid shape, the upper part of the cuvette body is connected with a vacuum valve (3) through a quartz tube (2), the quartz tube (2) at the lower end of the vacuum valve (3) is connected with another quartz tube (4) which is in a right angle with the vacuum valve, and the quartz tube (4) is connected with a spherical bin (5); wherein, the vacuum valve (3) is composed of a valve port (3-2) of the vacuum valve with a screw thread shape, an inner port (3-3) of the vacuum valve connected with the quartz tube (2) and an air pumping port (3-1) of the vacuum valve which is connected with an air pumping branch tube and forms a right angle direction with the valve port.
In order to save the amount of the sample and facilitate the solidification into solid, which is beneficial to the experiment and the reduction of the experiment cost, in the above-mentioned cuvette capable of being degassed, the preferred embodiment is: the size of the outer cavity of the cuvette body (1) is set to be 1.25cm multiplied by 4.5cm, the size of the inner cavity is set to be 1cm multiplied by 4.35cm, and the inner diameter of the quartz tube (2) or (4) is set to be 0.4 cm.
In order to save the consumption of samples and provide places for solidified solids in liquid nitrogen, the method is not only beneficial to the experiment, but also beneficial to reducing the experiment cost. The radius of the spherical inner cavity of the spherical bin (5) is preferably set to be 1 cm.
The invention provides a cuvette capable of being degassed, which comprises a cuvette body (1), a quartz tube (2), a vacuum valve (3), a quartz tube (4) and a spherical bin (5). Simple structure and easy processing and manufacturing. The degassing process does not result in bursting the cuvette, thereby reducing errors in the spectroscopic detection of the cuvette by air. Also need not to put into it and can realize the transfer to liquid sample in the cuboid cell body through spherical storehouse to the realization is to liquid sample's glove box in, convenient operation easily promotes.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the degasified cuvette body is connected with the quartz tubes (2) and (4), and the spherical bin (5) can realize degasification treatment under the condition that only an air pump exists by a liquid nitrogen cooling and air exhaust mode without using a glove box, so that the test interference of air on a liquid sample is greatly reduced. Meanwhile, other components do not need to be purchased, and the method is simple and convenient to operate and easy to popularize.
2. The size of spherical storehouse reasonable in design saves the quantity of sample, is convenient for simultaneously provide the place for the solid that solidifies in the liquid nitrogen, and the existing experiment that does benefit to goes on also is favorable to reducing the experiment cost.
3. The size scientific and reasonable of cell body, quartz capsule, vacuum valve guarantees mutual noninterference and combined action again, has improved the stability of experiment, guarantees to experiment going on smoothly.
Drawings
FIG. 1: is a front view of a degassable cuvette according to the invention;
FIG. 2: is a side view of the degassable cuvette of the invention;
FIG. 3: is a schematic structural diagram of a vacuum valve in the degasified cuvette;
the reference numerals referred to in the above figures correspond to: 1. the cuvette comprises a cuvette body, 2 parts of a quartz tube, 3 parts of a vacuum valve, 3-1 parts of a vacuum valve extraction opening, 3-2 parts of a vacuum valve opening, 3-3 parts of a vacuum valve inner opening, 4 parts of a quartz tube, 5 parts of a spherical bin.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description.
As shown in FIG. 1, the degasified cuvette comprises a cuvette body 1, a quartz tube 2, a vacuum valve 3, a quartz tube 4 and a spherical bin 5. The cuvette body 1 is rectangular and made of quartz materials; the upper part of the cuvette body 1 is connected with the quartz tube 2, and the quartz tube is cylindrical, so that the flow of a sample is facilitated, and the connection between the quartz tube and the upper part and the lower part is facilitated; the upper part of the quartz tube 2 is connected with a vacuum valve 3 through an inner port of the vacuum valve 3-3, and an air pumping port 3-1 of the vacuum valve can be connected with an external air pump; the valve opening 3-2 of the vacuum valve is in a thread shape, so that the valve is convenient to fix, and the flow of gas is better controlled. The quartz tube 2 at the lower end of the vacuum valve 3 is connected with another quartz tube 4 which is right-angled with the vacuum valve, and the quartz tube 4 is also arranged into a cylinder shape, so that the flow of a sample is facilitated, and the connection between the quartz tube and the spherical bin is facilitated; the quartz tube 4 is connected with a spherical bin 5, so that the liquid sample can be stored and solidified conveniently, and the bin is set to be spherical so as to avoid explosion caused by uneven stress when liquid nitrogen is used.
The radius of the spherical inner cavity of the spherical bin is set to be 1 cm. The dosage of the sample is saved, and the sample is convenient to solidify into a solid, so that the experiment is facilitated, and the experiment cost is reduced.
The size of the outer cavity of the cuvette body 1 is set to be 1.25cm multiplied by 4.5cm, and the size of the inner cavity is set to be 1cm multiplied by 4.35 cm. The amount of the sample is saved, and meanwhile, the place is provided for the solidified solid in the liquid nitrogen, so that the experiment is facilitated, and the experiment cost is reduced.
The quartz tube dimensions the inner diameter of the quartz tubes 2, 4 was set to 0.4 cm. Mutual noninterference and combined action are guaranteed, and the stability of the experiment is improved. The smooth operation of the experiment is ensured.
When the invention is used: injecting a liquid sample from a valve opening 3-2 of a vacuum valve, screwing the valve, transversely arranging the cuvette as a whole to enable the sample to flow into a spherical bin 5, putting the spherical bin 5 into liquid nitrogen to enable the sample to be solidified into a solid, connecting an air suction pump at an air suction opening 3-1 of the vacuum valve, unscrewing the valve at the air suction opening 3-1 of the vacuum valve, opening the air suction pump to suck air, and sucking air out of the quartz tubes 2 and 4. Then the valve of the vacuum valve air extraction opening 3-1 is screwed down, and the air extraction pump is closed. The cuvette was returned to room temperature to allow the sample to re-melt to a liquid, flow into the cuvette body 1, and the above steps were repeated three more times. And the sample detection can be carried out without the influence of air in the cuvette.
It is to be understood that the foregoing is illustrative of the present invention and is not to be construed as limited to the specific embodiments disclosed, but is to be accorded the widest scope consistent with the principles, structures and equivalents of the principles and features disclosed herein.
Claims (3)
1. A cuvette capable of being degassed comprises a cuvette body (1) for testing a sample, a regional spherical bin (5) for storing gas, a vacuum valve (3) and a quartz tube for connecting the cuvette body and the regional spherical bin; the method is characterized in that:
the cuvette body (1) is in a cuboid shape, the upper part of the cuvette body is connected with the vacuum valve (3) through a quartz tube (2), the quartz tube (2) at the lower end of the vacuum valve (3) is connected with another quartz tube (4) which is in a right angle with the quartz tube (2), and the other quartz tube (4) is connected with a spherical bin (5); wherein, the vacuum valve (3) is composed of a valve port (3-2) of the vacuum valve with a screw thread shape, an inner port (3-3) of the vacuum valve connected with the quartz tube (2) and an air pumping port (3-1) of the vacuum valve which is connected with an air pumping branch tube and forms a right angle direction with the valve port.
2. The degassable cuvette of claim 1, wherein: the size of the outer cavity of the cuvette body (1) is set to be 1.25cm multiplied by 4.5cm, the size of the inner cavity is set to be 1cm multiplied by 4.35cm, and the inner diameter of the quartz tube (2) or the other quartz tube (4) which is perpendicular to the quartz tube (2) is set to be 0.4 cm.
3. The degassable cuvette of claim 1, wherein: the radius of a spherical inner cavity of the spherical bin (5) is set to be 1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910900707.0A CN110567873B (en) | 2019-09-23 | 2019-09-23 | Cuvette capable of being degassed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910900707.0A CN110567873B (en) | 2019-09-23 | 2019-09-23 | Cuvette capable of being degassed |
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| Publication Number | Publication Date |
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| CN110567873A CN110567873A (en) | 2019-12-13 |
| CN110567873B true CN110567873B (en) | 2021-08-17 |
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| CN201910900707.0A Active CN110567873B (en) | 2019-09-23 | 2019-09-23 | Cuvette capable of being degassed |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385331Y (en) * | 1999-06-10 | 2000-06-28 | 中国科学院广州地球化学研究所 | Sample room device of vacuum refrigerating sample preparing system |
| CN203191301U (en) * | 2013-04-18 | 2013-09-11 | 姜堰市华晨仪器有限公司 | Digestion cooling colorimetric combination device for online water quality monitoring instrument |
| CN204101442U (en) * | 2014-08-14 | 2015-01-14 | 滁州津科通用检测设备有限公司 | A kind of floating cuvette |
| CN204612319U (en) * | 2015-05-05 | 2015-09-02 | 安徽省宁国天成电工有限公司 | A kind ofly vacuumize quartz tube heater for defroster |
| CN204807439U (en) * | 2015-07-08 | 2015-11-25 | 西北大学 | Be applicable to and water funkly be afraid of that oxygen compound carries out ultraviolet cell for fluorescence detection |
| CN105606686A (en) * | 2015-12-21 | 2016-05-25 | 中国科学院地质与地球物理研究所 | Analysis device and analysis method for quantitatively analyzing fluid inclusion water |
| CN209356398U (en) * | 2018-01-24 | 2019-09-06 | 上海华严检测技术有限公司 | A kind of measurement device of active carbon molasses value |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495013B (en) * | 2011-12-07 | 2016-04-27 | 江西怡杉环保股份有限公司 | A kind of water quality in-line digestion and photometric detection device |
-
2019
- 2019-09-23 CN CN201910900707.0A patent/CN110567873B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385331Y (en) * | 1999-06-10 | 2000-06-28 | 中国科学院广州地球化学研究所 | Sample room device of vacuum refrigerating sample preparing system |
| CN203191301U (en) * | 2013-04-18 | 2013-09-11 | 姜堰市华晨仪器有限公司 | Digestion cooling colorimetric combination device for online water quality monitoring instrument |
| CN204101442U (en) * | 2014-08-14 | 2015-01-14 | 滁州津科通用检测设备有限公司 | A kind of floating cuvette |
| CN204612319U (en) * | 2015-05-05 | 2015-09-02 | 安徽省宁国天成电工有限公司 | A kind ofly vacuumize quartz tube heater for defroster |
| CN204807439U (en) * | 2015-07-08 | 2015-11-25 | 西北大学 | Be applicable to and water funkly be afraid of that oxygen compound carries out ultraviolet cell for fluorescence detection |
| CN105606686A (en) * | 2015-12-21 | 2016-05-25 | 中国科学院地质与地球物理研究所 | Analysis device and analysis method for quantitatively analyzing fluid inclusion water |
| CN209356398U (en) * | 2018-01-24 | 2019-09-06 | 上海华严检测技术有限公司 | A kind of measurement device of active carbon molasses value |
Non-Patent Citations (1)
| Title |
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| "一种温敏型超大孔生物分离介质的制备及表征";曲剑波 等;《高分子学报》;20150131(第1期);第57-64页 * |
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| CN110567873A (en) | 2019-12-13 |
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