CN111024630A - Portable visible absorption spectrometer - Google Patents
Portable visible absorption spectrometer Download PDFInfo
- Publication number
- CN111024630A CN111024630A CN201911141625.9A CN201911141625A CN111024630A CN 111024630 A CN111024630 A CN 111024630A CN 201911141625 A CN201911141625 A CN 201911141625A CN 111024630 A CN111024630 A CN 111024630A
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- portable
- spectrum
- optical fiber
- visible absorption
- collector
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 34
- 239000013307 optical fiber Substances 0.000 claims abstract description 37
- 238000001228 spectrum Methods 0.000 claims abstract description 35
- 238000000862 absorption spectrum Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 238000004458 analytical method Methods 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 9
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 5
- 230000003595 spectral effect Effects 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 2
- 238000004847 absorption spectroscopy Methods 0.000 description 2
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical class [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
Images
Classifications
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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
-
- 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
-
- 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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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (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)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a portable visible absorption spectrometer, and belongs to the technical field of spectrometer detection. The integrated type optical path analysis device comprises an integrated type placing bin, an optical fiber type optical path transmission system, a portable spectrum collector and an analysis system for analyzing the absorption spectrum of a sample, wherein the integrated type placing bin comprises a light source, a short-focus lens and a sample absorption pool which are sequentially adjacent in an outer cover, and the sample absorption pool placing bin is connected with the portable spectrum collector through the optical fiber type optical path transmission system. The invention has the beneficial effects that: the method has the characteristics of flexibility and portability, and can realize rapid field analysis.
Description
Technical Field
The invention relates to the technical field of spectrometer detection, in particular to a portable visible absorption spectrometer.
Background
The spectral analysis technology is taken as a main branch in the field of modern analysis and test and plays an irreplaceable role in various fields such as food safety detection, environmental monitoring, biomedicine, basic scientific research and the like. The absorption spectrum technology mainly aims at that different substances have specific and independent absorption spectrum curves in different wave bands, and can further determine the content of the corresponding substances according to the intensity of the absorbance of characteristic spectra on the corresponding absorption spectra, and can perform qualitative or quantitative analysis on some specific substances based on the content.
The basis of the visible absorption spectroscopy technique is based on Lambert-Beer, which is regarded as the basic law for measuring light absorption and is also the basis and foundation for quantitative analysis of substances using absorption spectroscopy. Based on the law, when the wavelength of incident light is fixed, the absorbance of the solution to be measured is proportional to the concentration and the thickness of the liquid layer. At present, the wavelength that a high-performance absorption spectrometer can analyze is as short as ultraviolet and as long as infrared spectrum range, but along with the improvement of the performance of the absorption spectrometer, the size and the flexibility of the absorption spectrometer are greatly limited. Therefore, besides laboratory tests, how to introduce portable and flexible absorption spectrum technology into a test field for rapid detection is an important direction for the development of absorption spectrometers.
Disclosure of Invention
The invention mainly relates to a portable visible absorption spectrometer which is designed based on the development direction of the portable flexible absorption spectrometer.
The technical scheme of the invention is as follows: the utility model provides a portable visible absorption spectrometer, places the storehouse including the integrated form, optic fibre formula light path transmission system, portable spectrum collector and be used for the analytic system of analysis sample absorption spectrum, the storehouse is placed including light source, short focal length lens and the sample absorption cell that adjacent in proper order in the dustcoat to the integrated form, and the sample absorption cell is placed the storehouse and is connected portable spectrum collector through optic fibre formula light path transmission system.
The light source is a halogen tungsten lamp light source, the spectrum range of incident light provided by the halogen tungsten lamp light source is 400nm to 900nm, and the focal length of the short-focus lens is 5mm to 20 mm.
The integrated form is placed the glass cell of 10mm optical distance of storehouse built-in 3.5mL capacity, the glass cell size does, long 13mm, wide 13mm, high 30 mm.
The integrated form is placed the storehouse and is wholly black, and the material is aluminum alloy or stainless steel, and the sample absorption cell is placed the storehouse position and is equipped with black glass cell upper cover.
The optical fiber type optical path transmission system comprises an optical fiber coupler and a standard optical fiber used for connecting the optical fiber coupler and the portable spectrum collector, wherein the optical fiber coupler couples spectral components passing through the sample absorption cell into the standard optical fiber through a group of lenses, and the spectrum is transmitted to the portable spectrum collector through the standard optical fiber for spectrum collection.
The standard optical fiber has a core diameter of 50 to 600 microns.
The portable spectrum collector is a portable optical fiber spectrometer or a monochromator with an optical fiber coupling joint.
The spectrum collection range of the portable spectrum collector is 300nm to 900 nm.
The invention has the beneficial effects that: the method has the characteristics of flexibility and portability, and can realize rapid field analysis.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an absorption spectrum of CdSe quantum dots tested by the present invention.
The reference numbers in the figures are as follows: 1. the device comprises an integrated storage bin, a 1a housing, a 1b light source, a 1c short-focus lens, a 1d sample absorption cell storage bin, a 2 optical fiber type optical path transmission system, a 2a optical fiber coupler, a 2b standard optical fiber, a 3 portable spectrum collector.
Detailed Description
The invention is further illustrated with reference to the accompanying figures 1-2:
the utility model provides a portable visible absorption spectrometer, places storehouse 1 including the integrated form, optic fibre formula light path transmission system 2, portable spectrum collector 3 and be used for the analytic system of analysis sample absorption spectrum, and storehouse 1 is placed including light source 1b, short focal length lens 1c and the sample absorption cell that adjacent in proper order in dustcoat 1a to the integrated form, and storehouse 1d is placed to the sample absorption cell and portable spectrum collector is connected through optic fibre formula light path transmission system 2. The light source 1b is a halogen tungsten lamp light source, the spectrum range of incident light provided by the halogen tungsten lamp light source is 400nm to 900nm, and the focal length of the short-focus lens 1c is 5mm to 20 mm. Storehouse 1 is placed to integrated form and glass cell of 10mm optical distance of built-in 3.5mL capacity is placed to the storehouse, the glass cell size does, and long 13mm, wide 13mm, height 30 mm. Storehouse 1 whole body black is placed to the integrated form, and the material is aluminum alloy or stainless steel, and the sample absorption cell is placed storehouse 1d position and is equipped with black glass cell upper cover. The optical fiber type optical path transmission system 2 comprises an optical fiber coupler 2a and a standard optical fiber 2b used for connecting the optical fiber coupler 2a and the portable spectrum collector 3, the optical fiber coupler 2a couples the spectrum components passing through the sample absorption cell into the standard optical fiber 2b through a group of lenses, and the spectrum is transmitted to the portable spectrum collector 3 through the standard optical fiber 2b for spectrum collection. The core diameter of the standard optical fiber 2b is 50 to 600 μm. The portable spectrum collector 3 is a portable optical fiber spectrometer or a monochromator with an optical fiber coupling joint. The spectrum collection range of the portable spectrum collector 3 is 300nm to 900 nm.
In the specific implementation process, dustcoat 1a adopts the aluminum alloy processing to form to combine the surface plating to handle into black, light source 1b adopts long-life halogen tungsten lamp as the light source, the focus of lens is 15mm, place the quartz cuvette of optical distance 10mm in the sample cell, optical fiber coupler adopts the lens that the focus is 8mm in the incident light coupling that passes through the cuvette is into the optic fibre that the internal diameter is 600 microns, the joint of standard optic fibre is SMA905 optical fiber splice, the portable spectrum collector who adopts in this embodiment is an optical fiber spectrometer, can gather the spectral curve in 350nm to 900nm wavelength range simultaneously.
On the basis of the design, the absorption spectrum of the CdSe quantum dot material is tested, the obtained absorption spectrum spectral line is shown in the following figure 2, the absorption spectrum is very consistent with the standard absorption spectrum, and the accuracy of the test result of the novel portable optical fiber spectrometer is also proved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a portable visible absorption spectrum appearance, its characterized in that, place storehouse (1) including the integrated form, optic fibre formula light path transmission system (2), portable spectrum collector (3) and be used for the analytic system of analysis sample absorption spectrum, storehouse (1) is placed including light source (1b), short focal length lens (1c) and the sample absorption cell that are adjacent in proper order in dustcoat (1a) to the integrated form place storehouse (1d), the sample absorption cell is placed storehouse (1d) and is connected portable spectrum collector through optic fibre formula light path transmission system (2).
2. The portable visible absorption spectrometer according to claim 1, wherein the light source (1b) is a halogen tungsten lamp light source providing an incident light spectral range of 400nm to 900nm, and the short focal length lens (1c) has a focal length of 5mm to 20 mm.
3. The portable visible absorption spectrometer according to claim 1, wherein the integrated storage bin (1) houses a 3.5mL capacity glass cuvette with a 10mm optical path, the glass cuvette being 13mm long, 13mm wide and 30mm high.
4. The portable visible absorption spectrometer according to claim 1, wherein the integrated placing bin (1) is black in whole, the material is aluminum alloy or stainless steel, and a black glass cuvette upper cover is arranged at the position of the sample absorption cell placing bin (1 d).
5. The portable visible absorption spectrometer according to claim 1, wherein the optical fiber type optical path transmission system (2) comprises an optical fiber coupler (2a) and a standard optical fiber (2b) for connecting the optical fiber coupler (2a) and the portable spectrum collector (3), the optical fiber coupler (2a) couples the spectral components passing through the sample absorption cell into the standard optical fiber (2b) through a set of lenses, and the standard optical fiber (2b) transmits the spectrum to the portable spectrum collector (3) for spectrum collection.
6. The portable visible absorption spectrometer according to claim 5, characterized in that the core diameter of the standard optical fiber (2b) is 50 to 600 microns.
7. The portable visible absorption spectrometer according to claim 1, wherein the portable spectrum collector (3) is a portable fiber optic spectrometer or a monochromator with fiber coupling joint.
8. The portable visible absorption spectrometer according to claim 1, wherein the spectrum collection range of the portable spectrum collector (3) is 300nm to 900 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911141625.9A CN111024630A (en) | 2019-11-20 | 2019-11-20 | Portable visible absorption spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911141625.9A CN111024630A (en) | 2019-11-20 | 2019-11-20 | Portable visible absorption spectrometer |
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| Publication Number | Publication Date |
|---|---|
| CN111024630A true CN111024630A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911141625.9A Pending CN111024630A (en) | 2019-11-20 | 2019-11-20 | Portable visible absorption spectrometer |
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| Country | Link |
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| CN (1) | CN111024630A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857569A (en) * | 2020-12-16 | 2021-05-28 | 中国科学院国家天文台 | Portable multifunctional light source for imaging spectrometer calibration and calibration method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852727A (en) * | 2010-05-18 | 2010-10-06 | 浙江大学 | Optical detection method for continuously monitoring liquid concentration |
| US20160161402A1 (en) * | 2012-03-27 | 2016-06-09 | Innovative Science Tools, Inc. | Optical analyzer for identification of materials using transmission spectroscopy |
| CN106770346A (en) * | 2016-11-29 | 2017-05-31 | 中国科学院合肥物质科学研究院 | One kind is based on near-infrared diffusing transmission solids on-line detecting system |
| CN107064044A (en) * | 2017-05-25 | 2017-08-18 | 江苏大学 | The quick determination method and device of polyphenol content in a kind of tea extract |
| CN107367477A (en) * | 2016-12-30 | 2017-11-21 | 山东非金属材料研究所 | Liquid-propellant component content measurement device |
| CN109374552A (en) * | 2018-11-23 | 2019-02-22 | 国家海洋局第二海洋研究所 | A kind of water body absorption coefficient measuring device based on segmentation optical path |
| CN110208199A (en) * | 2019-03-06 | 2019-09-06 | 廊坊市慧璟科技有限公司 | One kind can be used for the device and method of ultraviolet in on-line determination water-visible absorption spectra |
-
2019
- 2019-11-20 CN CN201911141625.9A patent/CN111024630A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852727A (en) * | 2010-05-18 | 2010-10-06 | 浙江大学 | Optical detection method for continuously monitoring liquid concentration |
| US20160161402A1 (en) * | 2012-03-27 | 2016-06-09 | Innovative Science Tools, Inc. | Optical analyzer for identification of materials using transmission spectroscopy |
| CN106770346A (en) * | 2016-11-29 | 2017-05-31 | 中国科学院合肥物质科学研究院 | One kind is based on near-infrared diffusing transmission solids on-line detecting system |
| CN107367477A (en) * | 2016-12-30 | 2017-11-21 | 山东非金属材料研究所 | Liquid-propellant component content measurement device |
| CN107064044A (en) * | 2017-05-25 | 2017-08-18 | 江苏大学 | The quick determination method and device of polyphenol content in a kind of tea extract |
| CN109374552A (en) * | 2018-11-23 | 2019-02-22 | 国家海洋局第二海洋研究所 | A kind of water body absorption coefficient measuring device based on segmentation optical path |
| CN110208199A (en) * | 2019-03-06 | 2019-09-06 | 廊坊市慧璟科技有限公司 | One kind can be used for the device and method of ultraviolet in on-line determination water-visible absorption spectra |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857569A (en) * | 2020-12-16 | 2021-05-28 | 中国科学院国家天文台 | Portable multifunctional light source for imaging spectrometer calibration and calibration method |
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Application publication date: 20200417 |