CN109916700A - A kind of small-sized Solid Phase Extraction and solid phase spectra detect aggregate device - Google Patents
A kind of small-sized Solid Phase Extraction and solid phase spectra detect aggregate device Download PDFInfo
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- CN109916700A CN109916700A CN201910232288.8A CN201910232288A CN109916700A CN 109916700 A CN109916700 A CN 109916700A CN 201910232288 A CN201910232288 A CN 201910232288A CN 109916700 A CN109916700 A CN 109916700A
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Abstract
A kind of small-sized Solid Phase Extraction and spectral detection aggregate device, the aggregate device includes: sample processing part and spectra collection part, the sample processing part includes sample injection device and the solid-phase extraction device that is disposed below, injection port is arranged at sample injection device top, and lower part and the solid-phase extraction device are tightly connected；The spectra collection part includes the light source module being sequentially connected, light path module and load sample platform, and the load sample platform further includes specimen slides slot, mating a sample slide glass in the slide glass slot, and the slide glass trench bottom is equipped with reflecting piece；The pedestal is equipped with fixed bracket, card slot, and the spectra collection section bottom is connect with the card slot, and the sample processing part is connect with the fixed bracket.Aggregate device of the invention, have it is small in size, compact-sized, convenient for operation, detection sensitivity is high the advantages that.
Description
Technical field
The present invention relates to sample treatment in analytical chemistry and field of spectral analysis technology, specifically, being a kind of for small
Type Solid Phase Extraction and solid phase spectra detect aggregate device.
Background technique
Molecular spectroscopy techniques are easy to operate, quick, instrument is small and exquisite, at low cost, are preferably fast inspection technologies, but traditional point
There are also certain limitations in terms of the sensitivity of detection for sub-light spectral technology.For this purpose, can use Solid Phase Extraction and solid phase spectra
Detection technique improves the sensitivity and selectivity of detection.Measured object is enriched in specific medium by solid phase extraction techniques, removal
A large amount of solvent and interference component are the effective ways for improving sensitivity and selectivity.
Solid phase spectra refers to the spectrum acquired from solid sample, such as diffusing reflection spectrum (ultraviolet, it is seen then that near-infrared), declines
Subtract total reflection (ATR) infrared spectroscopy and solid phase fluorescence spectrum etc..Traditional solid phase extraction techniques, including Solid Phase Extraction equipment,
Including filter bowl, filter core, filter flask, vacuum pump etc.；Solid adsorption materials such as solid phase extraction material, including membrane material, extraction column etc., benefit
The determinand inside adsorption sample is removed with solid adsorption material, determinand is concentrated and purified, traditional solid phase extraction techniques
To Solid Phase Extraction equipment requirement is high, part requirement is more, operating procedure is more.Traditional spectral detection is mainly in fluid sample system
Middle progress, sample need to be eluted from solid adsorption material and be detected under solution state.Solid phase is combined to extract at present
The spectrum detection technique taken still after Solid Phase Extraction, sample is eluted from solid adsorption material, under solution state
It is detected, operating procedure is still more, needs using components a variety of including cuvette, sensitivity is not also high.In addition, traditional
Spectral detection analyzed using conventional desk-top spectrometer, take up space larger, not easily shifted and operation.
Summary of the invention
The aggregate device detected the purpose of the present invention is to provide a kind of small-sized Solid Phase Extraction and solid phase spectra is existing to overcome
There are Solid Phase Extraction and solid phase spectra detection convenience deficiency and the inadequate problem of sensitivity.
To achieve the above object, the present invention provides a kind of small-sized Solid Phase Extraction and spectral detection aggregate devices, comprising:
Sample processing part, including sample injection device and the solid-phase extraction device being disposed below, the sample injection
Injection port is arranged at device top, and lower part and the solid-phase extraction device are tightly connected；
Spectra collection part, including light source module, light path module and the load sample platform being sequentially connected, the light source module
In be equipped with light source, collimation lens is installed in bottom, and light source optical path and light path are equipped in the light path module, is formed between the two
The angle of adjustable-angle, is tightly connected between light source optical path and collimation lens, is provided on the load sample platform and light path module
Bottom structure is matched to accommodate the groove of the bottom structure, and the load sample platform further includes specimen slides slot, in the slide glass slot
Mating a sample slide glass, the slide glass trench bottom are equipped with reflecting piece, in the reflecting piece and specimen slides set sample cell and
The mutual centering of optical path in light path module.
Preferably, the sample injection device is syringe or funnel, and the solid-phase extraction device is membranous type Solid Phase Extraction
Device or column type solid-phase extraction device.
Preferably, the membranous type solid-phase extraction device includes filtering filter and filter membrane.
Preferably, the filtering filter is hollow structure, is made of upper and lower two parts, the filter membrane is placed in this upper and lower two
/, filtering filter top has ring type seal, and lower part has flat-surfaced screen, and the upper and lower two parts are spirally connected sealing.
Preferably, the size range of the filtering filter is 5-50mm；The range of capacity of the syringe is 5-100mL；
Filter sizes are 0.1-0.45 μm, and the filter membrane material is selected from any one of following material: nylon, polyether sulfone, polyvinylidene fluoride
Alkene, polytetrafluoroethylene (PTFE), cellulose mixture, cellulose acetate, glass fiber material.
Preferably, the incidence end of the light path in the light path module is sealedly connected with collimation lens.
Preferably, the included angle range is between 0 degree and 90 degree.
Preferably, the light source is selected from any of following light source: ultraviolet or visible LED light, tungsten lamp, deuterium lamp, xenon lamp
Or diode.
Preferably, the specimen slides are the bulk sample slide glass of integrated 2~10 sample cells.
Preferably, the rapidoprint of the sample stage part and specimen slides is selected from any of following material: acrylic
Plate, polyfluortetraethylene plate, polyethylene, nylon, polystyrene, polyether-ether-ketone, polycarbonate or metal material.
Preferably, the sample cell diameter range is 5-50mm, depth 1-5mm.
Preferably, the reflecting piece with a thickness of 0.1-1.5mm, be thin made of aluminium foil, tin, silver, copper, aluminium or magnesium
Piece, or the flaky material of 95% or more reflectivity is selected to be made, the flaky material includes metal oxide, barium sulfate powder pressure
The flaky material of system or surface be coated with aluminium foil, tin, silver, copper, aluminium, magnesium powder plastic sheet.
Sample treatment modules of the present invention complete Solid Phase Extraction using syringe, easy to operate, are not necessarily to extra power.Spectrum is adopted
Collection part forms sealing darkroom using by docking between light path module upper end and the load sample platform of light source module lower end, is not necessarily to other
Device, spectral detection are not influenced by environment light, directly provide well stable testing conditions.With traditional Solid Phase Extraction and light
Spectrum detection is compared: this method is not necessarily to traditional Solid Phase Extraction instrument, only can complete solid phase extraction manipulations by syringe and filter.
Requirement and operating procedure are significantly reduced from equipment, reduce the condition used.In terms of spectral detection, it is not necessarily to colorimetric
Ware detects under solution state without eluting sample from solid adsorption material.Utilize this kind of miniature lamp of LED light
As light source, in conjunction with micro spectrometer, reduce laboratory operating procedures, improve detection sensitivity, considerably reduce simultaneously
The volume and cost of instrument.And it is portable, easily for different detection architectures and requirement do secondary development, have in use very
Big flexibility.
Detailed description of the invention
Fig. 1 is sample processing part decomposition diagram in aggregate device according to the present invention；
Fig. 2 is spectra collection partially exploded diagram in aggregate device according to the present invention.
Label in figure is respectively as follows:
1- light source module；2- light path module；
3- load sample platform；4- specimen slides；
101- light source；102- collimation lens；
201- light source optical path；202- light path；
203- collimation lens；301- specimen slides slot；
302- reflecting piece；303- groove；
401- sample cell；5- syringe filter；
6- syringe；7- filter membrane.
Specific embodiment
The specific implementation of the aggregate device of a kind of small-sized Solid Phase Extraction of the present invention and solid phase spectra detection is introduced in detail below
Mode.It should be pointed out that implementation of the invention is not limited to the following embodiment to be introduced.
Referring to Fig. 1,2, a kind of aggregate device of small-sized Solid Phase Extraction and solid phase spectra detection, the aggregate device is by sample
Reason is formed with two parts of spectra collection, and by pedestal set, pedestal, which is equipped with, to be fixed for sample processing part and spectra collection part
Bracket, card slot, spectra collection section bottom are connect with card slot, sample processing part fixed by the fixation bracket on pedestal (by
In for Conventional fastening arrangements, so not shown herein).
Sample processing part is made of filtering filter 5, syringe 6, filter membrane 7 in the present embodiment.Filtering filter 5 is selected removable
Unload filtering head of filter, diameter range 5-13mm.Filtering has ring packing rubber ring, middle section on the inside of the upper end of filter 5
It is flowed for cylindrical channel for sample solution, there is flat-surfaced screen among lower end, lower end platform is covered with micropore, can make solution stream
It crosses, filter membrane 7 is placed on the platform of lower end.Filtering 5 lower end platform of filter has external screw thread, the spiral shell on the inside of the corresponding filter upper end
Two parts up and down of line, the filter are screwed by the corresponding screw thread in interior outside, and the inside of filter upper end has rubber ring, with
After filter screw thread screws, rubber ring, which will fasten, is fixed sealing on filter membrane periphery, which can also support filter membrane 7, make
Filter membrane 7 keeps smooth and is unlikely to deform.6 front end of syringe is tapered slope, be also on the inside of syringe needle with size taper it is oblique
Face, what two inclined-plane sizes matched, it is i.e. salable to be directly seated connection.Filter filter 5 upper end and syringe needle it is interior
The same size in side, it may be connected on syringe 6.Syringe 6 then releases solution, makes measured matter for sucking sample solution
It is adsorbed on filter membrane 7.Using filtering 5 upper end hole path of filter, syringe 6 can be connected to it and inject sample to be tested, sample is through film
It is stayed in after Solid Phase Extraction on filter membrane 7, solution is flowed out via filtering 5 lower opening of filter, and sample handling procedure is completed.Filter filter 5
Size range is 5-50mm；Syringe range of capacity is 5-100mL.
Syringe 6 connect injection sample with filtering filter 5, and conventional syringe can be selected, it is possible to use solid-phase extraction column will
Eluent after sample purification carries out Solid Phase Extraction, needs to be pushed into sky thereto using syringe, ear washing bulb after Solid Phase Extraction
Gas, it is ensured that no solution remains on filter membrane 7, later can take out filter membrane 7, be placed in the sample cell 401 of specimen slides 4
On, with spectrum to be collected.
Spectra collection part includes the light source module 1 being sequentially connected, light path module 2 and load sample platform 3, light in the present embodiment
Light source 101 and collimation lens 102 are equipped in source module 1, light source 101 is fixed by the bracket, and collimation lens 102, light are installed in bottom
Light source optical path 201, light path 202 and collimation lens 203 are equipped in road module 2, between light source optical path 201, light path 202
The angle (α) of formation is 45 degree, can also choose any angle within 90 degree, collimation lens 102 and 2 size phase of light path module certainly
Matching is tightly connected, it is ensured that without light leakage phenomena, collimation lens 102 also may be used by the internal screw thread of outside screw and light source optical path 201
Make the sample in luminous energy parallel radiation to specimen slides 4；The incidence end and collimation lens 203 of light path 202 are tightly connected, quasi-
Straight lens 203 can be such that reflected light enters in spectrometer in parallel.The top of light source module 1 is light source 101, the power supply with middle part
Optical path 201 is connected, and side is connected with optical fiber with spectrometer by light path 202, and lower end is load sample platform 3.Load sample is flat
It is provided with and matches with 1 bottom structure of light path module to accommodate the groove 303 of the bottom structure on platform 3, load sample platform 3 further includes sample
Slide glass slot 301 is savored, mating specimen slides 4 in the slide glass slot 301,301 bottom of slide glass slot is equipped with reflecting piece 302, this is reflective
Piece 302 and set sample cell 401 in specimen slides 4 and the mutual centering of optical path in light path module 1, form straight line.Light source 101 is sent out
Incident light out reaches by collimation lens 102, optical path 201 and is tested component interaction back reflection in sample, with sample through 202
After arriving collimation lens 203 later, the optical fiber through being connected with collimation lens 203 enters spectrometer, that is, completes entire solid phase spectra and adopt
The configuration of collection process optical path.Incident light is at an angle with reflected light, and load sample platform 3 is for placing sample, optical path mould
Block 2 can inject in the rectangular recess 303 in load sample platform 3, the outside dimension of light path module 2 with it is rectangular in load sample platform 3
303 size of connected in star matches, and when connection is directly inserted into groove 303, without additional fixed, convenient disassembly.It utilizes
Specimen slides 4 are sealed in specimen slides slot 301 by light path module 2,3 two parts of sample stage module, form closed darkroom, this portion
Divide material can be using the production of the materials such as black acrylic, isolated environment light.There is specimen slides slot 301 on load sample platform 3, it is big
It is small to match with 4 size of specimen slides.In 301 center position of specimen slides slot, there is circular groove, wherein being placed with reflectivity
95% or more reflecting piece 302.Reflecting piece allows for having high reflectance to light, and optional material includes the reflective of glass material
Mirror, aluminium, silver, platinum, the metal reflective sheets such as tin, or the flaky material with reflecting metal coating.
Reflecting piece 302 can be selected with a thickness of the aluminium foil of 0.1-1.5mm thickness, tin, silver, copper, aluminium, magnesium sheet thin slice, or select
The flaky material of high reflectance, the material include that metal oxide, the flaky material of barium sulfate powder compacting or surface are coated with
Aluminium foil, tin, silver, copper, aluminium, magnesium powder plastic sheet, to improve the reflectivity to light.
When acquiring spectrum, spectrometer collection to can only be emitted to by light source 101 sample and with after sample effect
Light, it provides stable detection environment for sample detection, avoids influence of the environment light to testing result.Sample processing part
After completing solid phase extraction manipulations, the filter membrane 7 for being enriched with sample is taken out from filtering filter 5, is placed into the sample of specimen slides 4
On slot 401, then specimen slides 4 are inserted into the load sample platform 3 of spectra collection part lower end, are measured for spectrometer collection part
The solid phase spectra of sample.
Light source 101, it is different according to the characteristic of actual sample, ultraviolet-visible diffuse reflectance spectrum acquisition, solid phase can be carried out to it
Fluorescence spectrum acquisition.When for fluorescence spectrum detection, select the LED for being suitable for detection architecture excitation wavelength as light source；When
For detecting the time spectrum that diffuses, selects conventional ultraviolet or visible light as light source, also can be selected and be suitable for detection architecture wave
The ultraviolet or visible LED light of long range is as light source.Nylon, polyether sulfone, Kynoar, polytetrafluoroethyl-ne can be selected in filter membrane 7
Alkene, cellulose mixture, cellulose acetate or glass fiber material filter membrane, aperture: 0.1-0.45 μm.Specimen slides 4 can be selected
Unstressed configuration, the material without obvious UV absorption, such as polyethylene, polyvinyl chloride or glass material, wherein 401 diameter of sample cell
It should match with film size, depth 0.5-1.0mm.Sample typically refers to solution example, but the present invention also can be used for utilizing powder
Measured matter in material adsorbent solution, the sample is the solution with a small amount of powder adsorbent material in this case.Powder
The selection of adsorbent material is main to consider material to the enrichment and separation ability of sample solution, may be selected silica gel, resin, carbon material,
The porous materials such as molecular sieve or diatomite, high molecular polymer, metal oxide, molecularly imprinted polymer, or to these
The modified material of the acquisitions such as adsorbent material is grafted, functionalization.Its method are as follows: mix above-mentioned dusty material and solution to be measured
It closes, after material sufficiently adsorbs sample to be tested, is operated by following usage mode, it should be noted that preventing powder material in operating process
Material falls off and loses.
Sample cell 401 is corresponding with light source 101,302 position of reflecting piece in specimen slides 4, and three is total to straight line, sample cell
401 be circle, and size and the diameter of sample filter membrane 7 match, it is ensured that the placement of filter membrane 7 is wherein without clear gap, no shaking,
To guarantee that acquisition spectral conditions are stablized every time.To carry out auxiliary positioning, the error that manual operation introduces is reduced.401 phase of sample cell
The diameter range answered is that 5-50mm, depth 1-5mm are detected to be used to place the filter membrane after Solid Phase Extraction 7.Institute
Stating 301 size of specimen slides slot should match with 4 size of specimen slides, can fill in wherein, shake without obvious.
Specimen slides 4 can also be extended to the bulk sample slide glass of 2-10 sample cell of set, specifically, by specimen slides
4 redesign growth strip, wait wide intervals that sample cell 401 is arranged with load sample platform 3, can not move light source module and switch
In the case where light source, the continuous integrated specimen slides 4 for pushing strip carry out continuous Multi-example detection, realize that Multi-example is continuous
High-throughput sample spectra analysis is completed in detection.
The present invention fixes solid phase sample position with specimen slides, and opens up sample cell, it is easy to will test sample and light source,
Reflecting piece, the relative position of collimation lens are determining, form good detection architecture.It is relatively small to repeat detection sampling error.Cause
Its position is relatively constant, and be reduced to a great extent causes each optics and detection part position deviation occur because of manual operation.
In addition, single unit system is reusable, different sample measurements only need to change specimen slides 4.Spectra collection and sample treatment
Device sets design, small in size, structure novel, it is simple and practical, convenient for operation, can directly detect fluorescence spectrum and diffusing reflection and absorb
Spectrum (including ultraviolet, visible and near infrared spectrum) and solid phase fluorescence spectrum etc..The device supports LED light source, and it is proper to make
Product is smaller, price is lower.
Usage mode of the invention are as follows:
(1) first by sample solution inhalation syringe 6, sample filter membrane 7 is put into filtering filter 5 later, and connect note
In emitter 6, syringe 6 is then slowly pushed, solution to be measured can be enriched on filter membrane 7 when flowing through sample filter membrane 7.
(2) it takes 7 to go out the sample filter membrane in step (1) after, is placed in the sample cell 401 of specimen slides 4, can incite somebody to action
The slide glass 4 is placed into specimen slides slot 301, carries out solid phase spectra detection.
(3) according to testing requirements, Fluorescence Spectrometer, Raman spectrometer, UV-vis DRS spectrometer, close red can be selected
The spectrometer that diffuses outside measures.
Three application examples of the invention presented below.
Application examples 1
Content of bisphenol A is detected using molecularly imprinted polymer material on-line preconcentration
(1) 0.5g bisphenol A molecular engram polymer material accurately is weighed, the bisphenol-A for being added to 5 10mL various concentrations is molten
In liquid, concentration range 0.5-10mg/L, ultrasonic vibration 10 minutes.
(2) nylon leaching film 7 is placed in filtering filter 5 by the usage mode for pressing aforementioned present invention, and slowly sucking adds
There is the bisphenol-A solution of bisphenol A molecular engram, the molecularly imprinted polymer for being adsorbed with bisphenol-A is trapped on filter membrane 7.
(3) after enrichment process, sample film is taken out, is placed on specimen slides 4.
(4) specimen slides 4 are put into specimen slides slot 301, can directly carry out UV Diffuse Reflectance Spectroscopy detection.
Through examining: detection of the Application Example 1 to bisphenol-A can effectively improve the detection limit to bisphenol-A, and detection is limited to
0.01mg/L, method is simple, quick, and accuracy is high.
Application examples 2
Utilize content of copper ion in poly (ether sulfone) film on-line preconcentration detection water
(1) sodium diethyldithiocarbamate color developing agent is added into the aqueous solution containing copper ion of various concentration,
Copper ion concentration scope 0.25-12 μ g/L, volume 12mL.
(2) above-mentioned solution is injected separately into the filtering filter 5 containing polyethersulfone membranes 7, copper is complexed using filter membrane
Object is enriched with.
(3) after enrichment process, polyethersulfone membranes 7 are taken out, are placed on specimen slides 4.
(4) specimen slides 4 are put into specimen slides slot 301, can directly carry out ultraviolet-visible diffuse reflectance spectrum inspection
It surveys.
Through examining: detection of the Application Example 2 to copper ion, detection limit is up to 0.07 μ g/L.
Application examples 3
Fumonisin B1 is detected using the aggregate device of the small-sized online solid phase spectra detection of the present invention, use its
Step are as follows:
(1) Rhodamine Derivatives fluorophor, volt horse poison are added into the aqueous solution containing fumonisin of various concentration
Concentration range 0.5-5.0 the μ g/L, volume 15mL of plain B1.
(2) above-mentioned solution is injected separately into the filtering filter 5 containing nylon leaching film 7, using filter membrane 7 to fumonisin
Complex compound is enriched with.
(3) after enrichment process, nylon leaching film 7 is taken out, is placed on specimen slides 4.
(4) specimen slides 4 are put into specimen slides slot 301, can directly carry out solid phase fluorescence spectrum detection.
Through examining: detection of the application examples 3 to fumonisin B1, detection limit is up to 0.1 μ g/L.
Spectral detection is directly carried out to the solid-phase media for being enriched with tested component after Solid Phase Extraction of the present invention, eliminates elution
Step, it is not only simple and quick, and also sensitivity is largely increased.If in conjunction with miniature spectrometer, so that it may develop small-sized
Integrate the detection system of sample pre-treatments and spectral detection, or for the personalized instrument and equipment of specific system, realizes micro-
The quick detection of amount or trace materials.For quickly detecting, especially on-site test gathers the detection that these steps are integration
Technology, and matched device is researched and developed with important practical value.
Claims (10)
1. a kind of small-sized Solid Phase Extraction and spectral detection aggregate device, which is characterized in that the aggregate device includes:
Sample processing part, including sample injection device and the solid-phase extraction device being disposed below, the sample injection device
Injection port is arranged at top, and lower part and the solid-phase extraction device are tightly connected；
Spectra collection part, including light source module (1), light path module (2) and the load sample platform (3) being sequentially connected, the light source
Light source (101) are equipped in module (1), collimation lens (102) are installed in bottom, and light source optical path is equipped in the light path module (2)
(201) and light path (202) angle (α) of adjustable-angle, light source optical path (201) and collimation lens, are formed between the two
(102) it is tightly connected between, is provided on the load sample platform (3) and matches with light path module (1) bottom structure to accommodate the bottom
The groove (303) of portion's structure, the load sample platform (3) further include specimen slides slot (301), and grafting is matched in the slide glass slot (301)
Unify specimen slides (4), slide glass slot (301) bottom is equipped with reflecting piece (302), the reflecting piece (302) and specimen slides (4)
In the mutual centering of optical path in set sample cell (401) and light path module (1).
2. small-sized Solid Phase Extraction according to claim 1 and spectral detection aggregate device, which is characterized in that the sample note
Entering device is syringe or funnel, and the solid-phase extraction device is membranous type solid-phase extraction device or column type solid-phase extraction device.
3. the aggregate device of a kind of small-sized Solid Phase Extraction according to claim 2 and solid phase spectra detection, which is characterized in that
The membranous type solid-phase extraction device includes filtering filter (5) and filter membrane.
4. the aggregate device of a kind of small-sized Solid Phase Extraction according to claim 3 and solid phase spectra detection, which is characterized in that
The filtering filter (5) is hollow structure, is made of upper and lower two parts, and the filter membrane is placed between the upper and lower two parts, filtering
Filter (5) top has ring type seal, and lower part has flat-surfaced screen, and the upper and lower two parts are spirally connected sealing.
5. the aggregate device of a kind of small-sized Solid Phase Extraction according to claim 3 or 4 and solid phase spectra detection, feature exist
In the size range of filtering filter (5) is 5-50mm；The range of capacity of the syringe is 5-100mL；Filter sizes are
0.1-0.45 μm, the filter membrane material is selected from any one of following material: nylon, polyether sulfone, Kynoar, polytetrafluoroethyl-ne
Alkene, cellulose mixture, cellulose acetate, glass fiber material.
6. the aggregate device of a kind of small-sized Solid Phase Extraction according to claim 1 and solid phase spectra detection, which is characterized in that
The incidence end of light path (202) in the light path module (2) is sealedly connected with collimation lens (203).
7. the aggregate device of a kind of small-sized Solid Phase Extraction according to claim 1 and solid phase spectra detection, which is characterized in that
Angle (α) angular range is between 0 degree and 90 degree.
8. the aggregate device of a kind of small-sized Solid Phase Extraction according to claim 1 and solid phase spectra detection, which is characterized in that
The light source (101) is selected from any of following light source: ultraviolet or visible LED light, tungsten lamp, deuterium lamp, xenon lamp or diode.
9. the aggregate device of a kind of small-sized Solid Phase Extraction according to claim 1 and solid phase spectra detection, which is characterized in that
The specimen slides (4) are the bulk sample slide glass of integrated 2~10 sample cells.
10. the aggregate device of a kind of small-sized Solid Phase Extraction according to claim 1 and solid phase spectra detection, feature exist
In the rapidoprint of the sample stage part (3) and specimen slides (4) is selected from any of following material: acrylic board, poly- four
Vinyl fluoride plate, polyethylene, nylon, polystyrene, polyether-ether-ketone, polycarbonate or metal material；The sample cell (401) is straight
Diameter range is 5-50mm, depth 1-5mm；The reflecting piece (302) with a thickness of 0.1-1.5mm, for by aluminium foil, tin, silver,
Thin slice made of copper, aluminium or magnesium, or the flaky material of 95% or more reflectivity is selected to be made, the flaky material includes metal oxygen
Compound, barium sulfate powder compacting flaky material or surface be coated with aluminium foil, tin, silver, copper, aluminium, magnesium powder plastic sheet.
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| CN111443074A (en) * | 2020-05-11 | 2020-07-24 | 厦门大学 | Automatic on-line pretreatment and Raman detection device and method thereof |
| CN113049577A (en) * | 2021-03-12 | 2021-06-29 | 河南省科学院化学研究所有限公司 | Copper ion detection kit based on polyether sulfone material and detection method |
| CN113917780A (en) * | 2021-10-20 | 2022-01-11 | 深圳怡趣科技有限公司 | Light path tester for projector |
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| CN111443074A (en) * | 2020-05-11 | 2020-07-24 | 厦门大学 | Automatic on-line pretreatment and Raman detection device and method thereof |
| CN113049577A (en) * | 2021-03-12 | 2021-06-29 | 河南省科学院化学研究所有限公司 | Copper ion detection kit based on polyether sulfone material and detection method |
| CN113917780A (en) * | 2021-10-20 | 2022-01-11 | 深圳怡趣科技有限公司 | Light path tester for projector |
| CN113917780B (en) * | 2021-10-20 | 2023-02-14 | 深圳怡趣科技有限公司 | Light path tester for projector |
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