CN108562552A - High-precision spectrophotometer - Google Patents
High-precision spectrophotometer Download PDFInfo
- Publication number
- CN108562552A CN108562552A CN201810553612.1A CN201810553612A CN108562552A CN 108562552 A CN108562552 A CN 108562552A CN 201810553612 A CN201810553612 A CN 201810553612A CN 108562552 A CN108562552 A CN 108562552A
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- CN
- China
- Prior art keywords
- shell
- balladeur train
- monochromatic lens
- colorimetric shelf
- partition board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- G01N2021/015—Apparatus with interchangeable optical heads or interchangeable block of optics and detector
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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 kind of high-precision spectrophotometers, are related to chemical analysis field, its key points of the technical solution are that：Including shell, the light source being set in shell, colorimetric shelf, detector, it is provided in the shell by the partition board of colorimetric shelf and light source separation, the light hole passed through for light path is offered on the partition board, a Slideslip in the shell positioned at partition board away from colorimetric shelf is provided with balladeur train, multiple monochromatic lens are provided on the balladeur train, the monochromatic lens can slide along balladeur train and close light hole.This spectrophotometer can facilitate switching by the way that balladeur train and multiple monochromatic lens, the monochromatic lens to make moist are arranged, and reduce the influence to accuracy of detection；For monochromatic lens under the premise of can reliably push against in light hole, monochromatic lens are not likely to produce abrasion in handoff procedure, and sample is not easy to be spilled into shell or on the outer wall of cuvette；This spectrophotometer can be used for the measurement of ammonia-nitrogen content in water.
Description
Technical field
The present invention relates to chemical analysis field, more particularly to a kind of high-precision spectrophotometer.
Background technology
The principle of visible spectrophotometer is：The ultraviolet-visible absorption spectroscopy of molecule is since certain groups in molecule are inhaled
After having received UV, visible light radiant light, transition of electronic energy has occurred and the absorption spectrum that generates.Since various substances have respectively
The case where different molecule, atom and different spatial configuration of molecules, absorption light energy, also would not be identical, therefore, each
Substance just has its distinctive, fixed absorption spectrum curve, can be according to the absorbance of certain characteristic wave strong points on absorption spectrum
Height differentiate or measure the content of the substance, here it is the bases of spectrophotometric qualitative and quantitative analysis.
The Chinese utility model patent that existing Authorization Notice No. is CN201689045U discloses a kind of Portable ultraviolet can
See spectrophotometer, including shell, light source, speculum, main equipment board, rechargeable lithium battery, colorimetric shelf, monochromator and PDA inspections
Device is surveyed, wherein speculum and monochromator is respectively provided at colorimetric shelf both sides, and monochromator exit direction installs PDA detectors, speculum
Incident direction be arranged xenon source.Colorimetric shelf for placing the cuvette for filling sample to be tested, PDA detectors detect across
The photometric signal of sample simultaneously feeds back to processor, forms collection of illustrative plates and is analyzed for personnel.
Transparent monochromatic lens are provided on monochromator, since the sample in working chamber is generally aqueous solution, if sample is long
Between be positioned in photometer or moisture spills cuvette, then monochromatic lens there are problems that being easy to make moist, the monochromatic lens meeting after making moist
Influence photometric accuracy of detection.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of high-precision spectrophotometer, make moist
Monochromatic lens can be convenient for changing, reduce influence to accuracy of detection.
The present invention above-mentioned technical purpose technical scheme is that：A kind of high-precision spectrophotometric
It counts, including shell, the light source being set in shell, colorimetric shelf, detector, is provided in the shell by colorimetric shelf and light source point
Every partition board, the light hole passed through for light path is offered on the partition board, deviates from the one of colorimetric shelf positioned at partition board in the shell
Slideslip is provided with balladeur train, is provided with multiple monochromatic lens on the balladeur train, and the monochromatic lens can slide along balladeur train and by light hole
Closing.
Through the above technical solutions, when detection, sample is placed on colorimetric shelf, the light that light source is sent out sequentially passes through monochrome
It is reached at detector after mirror, light hole, sample, to be detected to the ingredient of sample.This spectrophotometer is detecting every time
Before, slidably balladeur train then can easily replace the monochromatic lens to make moist to switch the monochromatic lens for being right against loophole；Due to every
Plate, the monochromatic lens at loophole separate chamber where sample and balladeur train, then the monochromatic lens to leave unused on balladeur train not moisture-sensitive, really
The monochromatic lens protected after switching are in good condition, and when detection is not easy to influence accuracy of detection.
Preferably, the sliding rail slided for balladeur train is provided in the shell, there are gap, institutes between the sliding rail and partition board
Balladeur train is stated to be bent to light hole direction at light hole.
Through the above technical solutions, during switching monochromatic lens, the sliding rail for being bent setting controls the fortune of monochromatic lens
Row track, then under the premise of can reliably push against in light hole, monochromatic lens are not easy to generate with partition board and rub and then wear monochromatic lens,
Extend the service life of monochromatic lens.
Preferably, the sliding rail is vertically provided with two, and the balladeur train includes connecting respectively with two sliding rail slidings
Two flexible carriers connect, the connecting rod for connecting two flexible carriers；The monochromatic lens are hinged with flexible carrier, and articulated shaft is along vertical
Direction and positioned at monochromatic lens center line on.
Through the above technical solutions, the structural strength of balladeur train and monochromatic lens is higher and sliding is steady reliable, monochromatic lens are being pressed
Adaptive rotation can be tightly generated when light hole, it is ensured that reliably offset.
Preferably, the monochromatic lens upper edge is circumferentially provided with magnetic rings one, and the aperture of the light hole is circumferentially arranged to be had
The magnetic force of magnetic rings two, the magnetic rings one and magnetic rings two attracts each other.
Through the above technical solutions, when monochromatic lens move at light hole, the suction of magnetic rings one and magnetic rings two is made
For monochromatic lens, monochromatic lens is made reliably to push against at light hole；And the variation of personnel's feel when can pass through slides carriage judges
Whether monochromatic lens are installed in place, more convenient.
Preferably, the magnetic rings one are towards being provided with sealing ring on the end face of magnetic rings two.
Through the above technical solutions, the sealing effect that sealing ring both improves, air not The book of Changes light hole in partition board two
Effluent is logical, to reduce moisture intercommunication.
Preferably, mounting groove is offered on the colorimetric shelf, cuvette is placed in the mounting groove, and the colorimetric shelf is slided
Dynamic to be arranged on shell, the colorimetric shelf can be such that cuvette is located at outside shell by sliding, and the colorimetric shelf skids off the position of shell
It is set to feed inlet.
Through the above technical solutions, colorimetric shelf can be such that cuvette is located at outside shell by sliding, then related personnel can be square
Just cuvette is picked and placeed.
Preferably, the feed inlet is located at the side-walls of shell.
Through the above technical solutions, after colorimetric shelf part skids off shell, cuvette is located at outside shell, and nothing below cuvette
This photometric other component, then when contrastive colours ware is picked and placeed, injects sample, the sample surprisingly spilt will not enter shell
It is interior, it prevents from polluting shell vivo environment.
Preferably, it is provided with baffle on the shell above the feed inlet, injection hole is offered on the baffle, when described
When colorimetric shelf skids off feed inlet, the top of the injection hole energy face cuvette.
Through the above technical solutions, sample can be poured into cuvette by injection hole, during pouring into sample, if
Sample is accidentally outer to be spilt, and the sample spilt can be located on baffle, and be not easy to flow on the lateral wall of cuvette, in this way, falling
Enter the step of sample can exempt wiping cuvette outer wall later, improves detection efficiency.
Preferably, it is provided with the closed feeding gate of feed inlet on the shell, driving colorimetric is provided in the shell
The atmospheric pressure pole of frame sliding, the elastic force direction of the atmospheric pressure pole are the direction for driving colorimetric shelf to stretch out feed inlet.
Through the above technical solutions, when opening feeding gate, colorimetric shelf slowly stretches out charging under the elastic force effect of atmospheric pressure pole
Mouthful；When needing to reinstall colorimetric shelf, personnel move colorimetric shelf with hand push, and colorimetric shelf overcomes in the resistance retraction shell of atmospheric pressure pole, simultaneously
Close feeding gate；The automatic spring of colorimetric shelf is so realized, and the sample in cuvette is not easy to spill.
In conclusion the present invention having the beneficial effect that in contrast to the prior art：
1, by the way that balladeur train and multiple monochromatic lens are arranged, the monochromatic lens to make moist can facilitate switching, reduce the influence to accuracy of detection；
2, for monochromatic lens under the premise of can reliably push against in light hole, monochromatic lens are not likely to produce abrasion in handoff procedure；
3, colorimetric shelf reduces the probability that sample is spilled into shell slidably to outside shell；
4, by the way that baffle and injection hole is arranged, the probability that sample is spread across cuvette outer wall is reduced.
Description of the drawings
Fig. 1 is the stereogram of the high-precision spectrophotometer of embodiment, mainly protrudes the photometric external structure of this light splitting；
Fig. 2 is the photometric Local map of this light splitting, mainly protrudes the photometric internal structure of this light splitting；
Fig. 3 is the photometric partial exploded view of this light splitting, the structure of main prominent balladeur train and light hole；
Fig. 4 is the structural schematic diagram of balladeur train and monochromatic lens in embodiment；
Fig. 5 is that this is divided photometric colorimetric shelf in structure chart when skidding off state；
Fig. 6 is the A-A sectional views of Fig. 5, the structure of main prominent injection hole and cuvette.
Reference numeral：1, shell；11, light source；2, balladeur train；3, colorimetric shelf；12, detector；13, partition board；4, monochromatic lens；
131, light hole；31, cuvette；14, cover board；15, sliding rail；21, flexible carrier；22, connecting rod；41, magnetic rings one；42, it seals
Ring；132, magnetic rings two；32, mounting groove；16, feed inlet；161, feeding gate；5, atmospheric pressure pole；6, baffle；61, injection hole.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
A kind of high-precision spectrophotometer, as shown in Figure 1, including shell 1, the top of shell 1 is provided with switchable lid
Plate 14.As shown in Figures 2 and 3, it is provided with light source 11, balladeur train 2, colorimetric shelf 3 and detector 12 in shell 1, is also set up in shell 1
There are partition board 13, wherein light source 11 and balladeur train 2 to be located at the side of partition board 13, colorimetric shelf 3 and detector 12 are located at the another of partition board 13
Side.It is provided with multiple monochromatic lens 4 on balladeur train 2, light hole 131 is offered on partition board 13, is provided on colorimetric shelf 3 for placing examination
The cuvette 31 of sample, the light that light source 11 is sent out reach detector 12 after sequentially passing through monochromatic lens 4, light hole 131, cuvette 31
Place, to which the sample in contrastive colours ware 31 measures.
Be fixed with two one slide rails 15 slided for balladeur train 2 in shell 1, the line direction of two one slide rails 15 vertically,
And two vertical ranges between one slide rail 15 is equal everywhere；Whole sliding rail 15 is in the state parallel with partition board 13, and with partition board 13 it
Between there are gap, sliding rail 15 be located at light hole 131 to 131 direction of light hole be bent protrude.
As shown in Figure 3 and Figure 4, balladeur train 2 includes being slidably arranged in two flexible carriers 21 in two sliding rails 15 respectively, by two
The more connecting rods 22 that a flexible carrier 21 connects.Flexible carrier 21 in the present embodiment is articulated link chain made of plastics, flexible carrier 21
Twisting can be generated but can not be stretched along axis；Connecting rod 22 is fixed by both ends and flexible carrier 21, more 22 edges of connecting rod
The length direction of flexible carrier 21 is spaced apart, to which balladeur train 2 is combined into single entirety.The length of balladeur train 2 is longer, balladeur train 2 from
The side wall of shell 1 is pierced by shell 1.Monochromatic lens 4 are rectangle, and monochromatic lens 4 are by transparent mirror body and the protective case group for being coated on periphery
At monochromatic lens 4 are articulated with by opposite two side on flexible carrier 21, and articulated shaft is vertically and positioned at monochromatic lens 4
On center line.Towards magnetic rings 1 are fixed on the end face of partition board 13, magnetic rings 1 are made and are located at by magnet monochromatic lens 4
At the circumferential edge of monochromatic lens 4, the sealing ring 42 for being fixed with rubber material is glued on the end face of magnetic rings 1.
The circumferentially arranged ring 2 132 that is magnetic in the aperture of light hole 131, the magnetic force of magnetic rings 1 and magnetic rings 2 132
It attracts each other.When personnel pull or push the balladeur train 2 being located at outside shell 1, balladeur train 2 is moved along the generation of sliding rail 15,4 meeting of monochromatic lens
Along the sliding rail 15 of bending close to light hole 131；When monochromatic lens 4 slide into sliding rail 15 close to partition board 13 most nearby when, it is monochromatic
Mirror 4 just pushes against at the aperture of light hole 131.The suction of magnetic rings 1 and magnetic rings 2 132 makes in monochromatic lens 4
Monochromatic lens 4 reliably push against at light hole 131, the sealing effect that sealing ring 42 both improves, air not The book of Changes light hole
131 circulate in 13 both sides of partition board.Personnel can judge whether monochromatic lens 4 are installed in place by the variation of feel, can also open cover board
Whether 14 observation monochromatic lens 4 are installed in place.
As shown in Figure 5 and Figure 6, cuvette 31 is the transparent vessel of cuboid, is offered on colorimetric shelf 3 for placing ratio
The mounting groove 32 of color ware 31.Feed inlet 16 is offered on shell 1, feed inlet 16 is located at the same side wall that balladeur train 2 is pierced by shell 1
On, feeding gate 161 is hingedly provided at feed inlet 16, feeding gate 161 can be rotated around hinged place, to switch opening feed inlet
16, the two states of feed inlet 16 are closed.Colorimetric shelf 3 is slidably arranged in by the fit system of sliding slot sliding block on shell 1, colorimetric
The glide direction of frame 3 is horizontal direction, and can skid off shell 1 by 16 part of feed inlet；After 3 part of colorimetric shelf skids off shell 1,
Cuvette 31 is located at outside shell 1.
Colorimetric shelf 3 drives sliding, one end of atmospheric pressure pole 5 to be fixed on shell 1 by the atmospheric pressure pole 5 being arranged in shell 1, gas
The other end of compression bar 5 is fixed on colorimetric shelf 3, and the length direction of atmospheric pressure pole 5 is consistent with the glide direction of colorimetric shelf 3；Atmospheric pressure pole 5
It is default elastic, the elastic force direction of atmospheric pressure pole 5 for its elongation direction.Atmospheric pressure pole 5 is provided with certain damping, makes atmospheric pressure pole 5
It is flexible more slowly；Atmospheric pressure pole 5 is the prior art, and therefore not to repeat here.When opening feeding gate 161, colorimetric shelf 3 is in air pressure
The elastic force effect of bar 5 is lower slowly to stretch out feed inlet 16；When needing to reinstall colorimetric shelf 3, personnel move colorimetric shelf 3, colorimetric shelf 3 with hand push
Overcome in the resistance retraction shell 1 of atmospheric pressure pole 5, simultaneously closes off feeding gate 161.After feeding gate 161 is closed, feeding gate 161
Colorimetric shelf 3 is limited, cuvette 31 is placed exactly in the light path of the irradiation of light source 11, so realizes the automatic spring of colorimetric shelf 3,
And the sample in cuvette 31 is not easy to spill.
It is hinged with baffle 6 against the position of 16 top edge of feed inlet outside shell 1, articulated shaft is in the horizontal direction and positioned at gear
At the top edge of plate 6, baffle 6 can be rotated around articulated shaft, to switch horizontal, vertical two states.It is passed through in the plate face of baffle 6
It wears and offers injection hole 61, the aperture of injection hole 61 is less than the internal diameter of cuvette 31.When colorimetric shelf 3 skids off feed inlet 16 to limit
When, and when baffle 6 is in vertical state, personnel can easily pick and place cuvette 31；When baffle 6 is in horizontality, note
Enter the top of 61 face cuvette 31 of hole, and the two mutually abuts, can pour into examination into cuvette 31 by injection hole 61 at this time
Sample.During pouring into sample, spilt if sample is accidentally outer, the sample spilt will not enter inside shell 1, will not pollute shell
Environment in body 1；And the sample spilt can be located on baffle 6, and be not easy on the lateral wall for flowing to cuvette 31, in this way,
The step of sample can exempt wiping 31 outer wall of cuvette later is poured into, detection efficiency is improved.
This spectrophotometer can switch the monochromatic lens 4 for being right against loophole before being detected conveniently by balladeur train 2,
It then can easily replace the monochromatic lens 4 to make moist.Monochromatic lens 4 due to partition board 13, at loophole are by cuvette 31 and balladeur train 2
Place chamber separates, then the not moisture-sensitive of monochromatic lens 4 left unused on balladeur train 2, it is ensured that the monochromatic lens 4 after switching are in good condition, when detection
It is not easy to influence accuracy of detection.
During switching monochromatic lens 4, the sliding rail 15 for being bent setting controls the running orbit of monochromatic lens 4, then monochromatic
Under the premise of can reliably push against in light hole 131, monochromatic lens 4 are not easy to generate with partition board 13 and rub and then wear mirror 4, extend
The service life of monochromatic lens 4.Monochromatic lens 4 after use can together take out together with balladeur train 2, to be concentrated to the monochromatic lens 4 to make moist
Processing, whole clean rear return fill.
The above is only the exemplary embodiment of the present invention, protection domain and is not intended to limit the present invention, this hair
Bright protection domain is determined by the attached claims.
Claims (9)
1. a kind of high-precision spectrophotometer, including shell (1), the light source (11) being set in shell (1), colorimetric shelf (3), inspection
Device (12) is surveyed, it is characterized in that：The partition board (13) for separating colorimetric shelf (3) and light source (11) is provided in the shell (1), it is described
The light hole (131) passed through for light path is offered on partition board (13), being located at partition board (13) in the shell (1) deviates from colorimetric shelf
(3) a Slideslip is provided with balladeur train (2), and multiple monochromatic lens (4) are provided on the balladeur train (2), and the monochromatic lens (4) can edge
Balladeur train (2) slides and closes light hole (131).
2. high-precision spectrophotometer according to claim 1, it is characterized in that：It is provided with for balladeur train in the shell (1)
(2) sliding rail (15) slided, there are gaps between the sliding rail (15) and partition board (13), and the balladeur train (2) is in light hole (131)
Place is bent to light hole (131) direction.
3. high-precision spectrophotometer according to claim 2, it is characterized in that：The sliding rail (15) is vertically arranged
There are two, the balladeur train (2) includes two flexible carriers (21) being slidably connected respectively with two sliding rails (15), by two flexible carriers
(21) connecting rod (22) connected；The monochromatic lens (4) are hinged with flexible carrier (21), and articulated shaft is vertically and positioned at single
On the center line of Look mirror (4).
4. high-precision spectrophotometer according to claim 1, it is characterized in that：It is circumferentially arranged on the monochromatic lens (4)
Be magnetic ring one (41), the circumferentially arranged ring two (132) that is magnetic in aperture of the light hole (131), the magnetic rings one
(41) it attracts each other with the magnetic force of magnetic rings two (132).
5. high-precision spectrophotometer according to claim 4, it is characterized in that：The magnetic rings one (41) are towards magnetic rings
Sealing ring (42) is provided on the end face of two (132).
6. high-precision spectrophotometer according to claim 1, it is characterized in that：Installation is offered on the colorimetric shelf (3)
Slot (32), the mounting groove (32) is interior to be placed with cuvette (31), and the colorimetric shelf (3) is slidably arranged on shell (1), described
Colorimetric shelf (3) can make cuvette (31) be located at shell (1) outside by sliding, and the position that the colorimetric shelf (3) skids off shell (1) is
Feed inlet (16).
7. high-precision spectrophotometer according to claim 6, it is characterized in that：The feed inlet (16) is located at shell (1)
Side-walls.
8. high-precision spectrophotometer according to claim 7, it is characterized in that：Shell above the feed inlet (16)
(1) it is provided with baffle (6) on, injection hole (61) is offered on the baffle (6), when the colorimetric shelf (3) skids off feed inlet
(16) when, the top of injection hole (61) the energy face cuvette (31).
9. high-precision spectrophotometer according to claim 7, it is characterized in that：It is provided with and will feed on the shell (1)
Mouth (16) closed feeding gate (161), the interior atmospheric pressure pole (5) for being provided with driving colorimetric shelf (3) and sliding of the shell (1) are described
The elastic force direction of atmospheric pressure pole (5) is the direction for driving colorimetric shelf (3) to stretch out feed inlet (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553612.1A CN108562552B (en) | 2018-05-31 | 2018-05-31 | High-precision spectrophotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553612.1A CN108562552B (en) | 2018-05-31 | 2018-05-31 | High-precision spectrophotometer |
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| Publication Number | Publication Date |
|---|---|
| CN108562552A true CN108562552A (en) | 2018-09-21 |
| CN108562552B CN108562552B (en) | 2020-12-15 |
Family
ID=63552646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810553612.1A Active CN108562552B (en) | 2018-05-31 | 2018-05-31 | High-precision spectrophotometer |
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| Country | Link |
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| CN (1) | CN108562552B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112666099A (en) * | 2020-11-30 | 2021-04-16 | 浙江必利夫检测科技有限公司 | Visible spectrophotometer for detecting aldehydes and detection method thereof |
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| US20050224704A1 (en) * | 2004-04-08 | 2005-10-13 | Olympus Corporation | Calibration camera device |
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| CN112666099A (en) * | 2020-11-30 | 2021-04-16 | 浙江必利夫检测科技有限公司 | Visible spectrophotometer for detecting aldehydes and detection method thereof |
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| Publication number | Publication date |
|---|---|
| CN108562552B (en) | 2020-12-15 |
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