CN203811541U - Detection device for fluorescent whitening agent - Google Patents
Detection device for fluorescent whitening agent Download PDFInfo
- Publication number
- CN203811541U CN203811541U CN201420138390.4U CN201420138390U CN203811541U CN 203811541 U CN203811541 U CN 203811541U CN 201420138390 U CN201420138390 U CN 201420138390U CN 203811541 U CN203811541 U CN 203811541U
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- fluorescer
- pick
- detection
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- lens
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- Expired - Lifetime
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- 238000001514 detection method Methods 0.000 title claims abstract description 65
- 239000006081 fluorescent whitening agent Substances 0.000 title abstract 4
- 230000003287 optical effect Effects 0.000 claims abstract description 26
- 238000012360 testing method Methods 0.000 claims description 25
- 210000004907 gland Anatomy 0.000 claims description 17
- 230000005284 excitation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CNGYZEMWVAWWOB-VAWYXSNFSA-N 5-[[4-anilino-6-[bis(2-hydroxyethyl)amino]-1,3,5-triazin-2-yl]amino]-2-[(e)-2-[4-[[4-anilino-6-[bis(2-hydroxyethyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulfophenyl]ethenyl]benzenesulfonic acid Chemical compound N=1C(NC=2C=C(C(\C=C\C=3C(=CC(NC=4N=C(N=C(NC=5C=CC=CC=5)N=4)N(CCO)CCO)=CC=3)S(O)(=O)=O)=CC=2)S(O)(=O)=O)=NC(N(CCO)CCO)=NC=1NC1=CC=CC=C1 CNGYZEMWVAWWOB-VAWYXSNFSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Landscapes
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The utility model discloses a detection device for a fluorescent whitening agent. The detection device comprises a machine body, wherein a display screen and a fluorescent detection module are arranged on the upper surface of the machine body; the fluorescent detection module comprises a detection main body and a detection pool; the detection main body comprises a hollow cylinder-shaped frame body; a light source is arranged at the bottom of the frame body; an optical signal detector, an optical filter, a double convex lens and the detection pool are arranged in the inner cavity of the frame body in sequence from the top down. According to the detection device disclosed by the utility model, quantitative determination can be carried out quickly and accurately at any time and any place on the fluorescent whitening agent of the product on site, and the detection device is convenient to carry, simple and convenient to operate and quick and accurate to detect, so that a reliable detection instrument is provided for detecting the content of the fluorescent whitening agent in a sample on site.
Description
Technical field
The utility model relates to a kind of pick-up unit, particularly relates to a kind of fluorescer pick-up unit.
Background technology
Fluorescer is commonly called as white dyestuff, is a kind of fluorescent dye, belongs to a kind of organic compound of complexity.Its characteristic is to excite the ultraviolet light that absorbs incident to produce fluorescence, after absorbing ultraviolet light (wavelength coverage is about 360nm-380nm), excite generation wavelength at the visible ray of 400nm-600nm scope, thereby can compensate undesired micro-yellow in matrix, thereby article color visually seem more in vain, brighter, more bright-coloured.Due to this specific character, water miscible fluorescer is widely used in food, paper, coating, washing powder and bafta etc., and water-insoluble fluorescer is applied to the products such as chemical fibre, plastics.
Studies show that in the recent period, fluorescer is a kind of potential carcinogenic substance.When the products such as the face tissue that contains fluorescer, bafta contact with human body, fluorescer meeting and skin contact under the soaking into of water or sweat, be absorbed by the body; Or contact with oral cavity, eat in body, be there is to very important harm in health.China is mainly to carry out in the environment in laboratory to the quantitative detection of fluorescer at present, and pick-up unit volume is huge, not Portable belt.The device of existing Site Detection fluorescer is the detection for living paper products, structure, referring to Fig. 4 and Fig. 5, comprises display screen 2 ' and key panel 4 ', the interior fluorescence excitation module arranging 3 ' of body 1 ' on body 1 ', body 1 ' surface and is excited carrier module 5 '.Wherein, testing sample packs into is excited in carrier module 5 ', with it, together insert fluorescence excitation module 3 ', fluorescence excitation module 3 ' has two light sources 32 ' and the direct directive testing sample of 34 ' level and excites generation fluorescence, the fluorescence producing is through sense channel 33 ', form by the fluorescence intensity after processing with fluorescent brightener levels is presented on display screen 2 ', and sense channel 33 ' comprises optical filter and photoelectric detector.But the testing result error of this pick-up unit is large, and accuracy is low, be difficult to widespread use.Therefore, being badly in need of at present a kind of device can be quick and precisely, ground easy to carry is on-the-spot carries out quantitatively detecting whenever and wherever possible to fluorescer.
Utility model content
The purpose of this utility model is for the technological deficiency existing in prior art, and a kind of pick-up unit of easy to carry, Quantitative detection fluorescer is provided.
For realizing the technical scheme that the purpose of this utility model adopts, be:
Fluorescer pick-up unit, comprise body, body upper surface is provided with display screen and fluoroscopic examination module, fluoroscopic examination module comprises detection main body and detection cell, detect the frame body that main body comprises hollow barrel-type, frame body bottom is provided with light source, and frame body inner chamber is provided with optical signal detector, optical filter, biconvex lens and detection cell from the bottom to top successively.
The top of optical filter is provided with a Fresnel Lenses, and both are fixed as one, and forms one group of combined lens.
Frame body is hollow heavy wall tubular, and along cylinder, is axially uniformly distributed some through holes in barrel, and described light source is located at via bottoms.
The upper outside of frame body is provided with for being fixed on the main body locating ring on body by detecting main body.
The inwall on frame body top is formed for placing the lens step of biconvex lens lower than outer wall.
Lens position ring fixing on biconvex lens is fixed in biconvex lens on the lens step of frame body.
Described combined lens is fixed on optical signal detector top by lens orientation ring.
Described detection cell comprises detection cell main body and gland, detection cell lower body part be a diameter be less than detection cell main diameter for placing the platform of testing sample, for the gland of nested described platform, by being provided with the bottom surface of a detection window and vertical edge that surrounding is surrounded thereof, form, and with platform interference fit.
The height of described platform is greater than the height on the vertical edge of described gland.
Compared with prior art, the beneficial effects of the utility model are: pick-up unit of the present utility model be a kind of can be quick and precisely, the on-the-spot device that quantitatively detects whenever and wherever possible that the fluorescer of product is carried out in ground easy to carry; Wherein a plurality of cylindrical holes are contained in the frame body inside of this device, the light that light source can be penetrated forms directional light and injects biconvex lens, testing sample is in the focal position of biconvex lens, light is the strongest and distribution of light is even, and fluorescence excitation is effective, than existing pick-up unit, only has two light sources, be mapped to the easy skewness of light on testing sample, also likely light intensity is inadequate, all can affect the degree that excites of fluorescence, thereby cause testing result inaccurate; Also be provided with Fresnel Lenses and strengthen light signal, again through optical filter elimination parasitic light, obtain pure fluorescence signal, reduce and detect error, make result more accurate, and it is little to take up room, be conducive to equipment miniaturization, and in existing pick-up unit testing process, excite the fluorescence that obtains only after filtration mating plate process and just carry out the detection of fluorescence content, when fluorescence content is lower, such testing result error is larger; In addition, optical signal detector is being evenly equipped with on the center of circle of a plurality of arbitrary source circumference, makes whole light source, light channel structure simple.This pick-up unit is easy and simple to handle, it is accurately quick to detect, for the content of fluorescer in Site Detection sample provides reliable detecting instrument.
Accompanying drawing explanation
Figure 1 shows that the external structure of fluorescer pick-up unit of the present utility model;
Fig. 2 is the structural drawing of the fluoroscopic examination module of the utility model pick-up unit;
Fig. 2 a is the frame body vertical view of the utility model pick-up unit;
Fig. 2 b is the light source transmitting of the utility model pick-up unit and the three-dimensional structure diagram that light signal receives integrated apparatus;
Fig. 2 c is the detection cell structural drawing of the utility model pick-up unit;
Fig. 2 d is the three-dimensional structure diagram of the detection cell main body of Fig. 2 c detection cell;
Fig. 2 e is the three-dimensional structure diagram of the gland of Fig. 2 c detection cell;
Figure 3 shows that the index path utilizing in the utility model pick-up unit;
Figure 4 shows that the external structure of existing fluorescer pick-up unit;
Figure 5 shows that the structural drawing of fluorescence excitation module in existing fluorescer pick-up unit.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The fluorescer pick-up unit that the utility model provides, its external structure is referring to Fig. 1, comprise body 1, body 1 upper surface is provided with LCDs 2 and fluoroscopic examination module 3, the side of body 1 is provided with power switch 5, supply socket 4 and key panel, wherein key panel comprises upper and lower key, return, acknowledgement key etc., operation respective keys allows this device after start, complete multinomial contents of program, for example, upper and lower key can make program enter or the next item down, and return key can make program get back to reference position, by acknowledgement key program, can formally start.Internal body is equipped with microprocessor, chip, storer and circuit board etc.
The structure of fluoroscopic examination module 3 as shown in Figure 2, comprises and detects main body 30 and detection cell 37.
In Fig. 2, detect main body 30 and comprise a frame body 31, this frame body 31 is the bottomless cylindrical tube shapes of hollow heavy wall, and along cylinder, be axially uniformly distributed eight cylindrical holes 312 in barrel, the center of circle of these eight cylindrical holes 312 is on same circumference, and the bottom surface of this circumference and frame body 31 is that concentric (its vertical view referring to Fig. 2 a).The outside on outer wall 315 tops of this frame body 31 is established one and is with female main body locating ring 39, and this main body locating ring 39 is together by a threaded connection with frame body, thereby detection main body 30 is fixed on body 1.The outer wall 315 of frame body 31, than inwall 314 height, is formed for placing the lens step 310 of biconvex lens 36, and lens step 310 is arranged on approximately 2/3 At The Height of frame body 31 outer walls 315.On lens step 310, place a biconvex lens 36, in order to make biconvex lens more firm, establish a lens position ring 38 at the edge of biconvex lens, this lens position ring 38 is fixed on biconvex lens 36 on lens step 310 by screw thread.The middle and lower part of frame body 31 is provided with one group of combined lens, this arrangement of mirrors sheet is combined into one by optical filter 34 and Fresnel Lenses 35, wherein Fresnel Lenses is upper, optical filter under, two eyeglasses are fixed in frame body 31 by lens orientation ring 33, external thread on lens orientation ring 33 is connected with the screw-internal thread fit on frame body 31 inwalls 314, Fresnel Lenses in combined lens can converge low light level signal better, optical filter can elimination parasitic light, make fluorescence signal purer, thereby improve the accuracy of testing result, reduce to detect error, and it takes up room little, be conducive to equipment miniaturization.
Light source transmitting and light signal that detection main body 30 is also included in frame body 31 bottoms receive its three-dimensional structure diagram of integrated device 32(referring to Fig. 2 b), this device 32 comprises a disk 321, this disk 321 is identical with the shape of frame body 31 bottom surfaces, center at disk 321 upper surfaces is provided with optical signal detector 322, disk 321 is fixed on the bottom of frame body 31 as the bottom surface of frame body 31, and optical signal detector 322 stretches in the cylindrical drum of frame body 31, be positioned at the below of lens orientation ring 33.On disk 321, the surrounding of optical signal detector 322 is uniformly distributed eight LED light sources 323, these light sources 323 are corresponding with cylindrical hole 312 and stretch into wherein, so, cylindrical hole can play the effect of parallel light tube, and the light that light source penetrates forms parallel uniform light after by cylindrical hole.
In Fig. 2, detection cell 37 is located at biconvex lens 36 tops, namely detects the top of main body 30.Detection cell 37 comprises that detection cell main body 372 and gland 371(are as Fig. 2 c).Detection cell main body 372 tops are a boss 373, conveniently take, detection cell main body 372 bottoms inwardly shorten a platform 376 into, and the diameter of this platform 376 is slightly less than detection cell main body 372, and the bottom surface of platform 376 is used for placing testing sample.Gland 371 bottom center have a detection window 377, and this detection window is a through hole, and it is vertical along 375 that gland 371 is provided with a circle around, and referring to Fig. 2 e, gland bottom surface and standing is used for the platform 376 of nested detection cell lower body part along the space in 375 besieged cities, and with its interference fit.Because the diameter of platform is less than detection cell main body, therefore, between platform 376 and detection cell main body 372, form a platform step 374, for gland and platform are coordinated better, the height of platform step is vertical identical along 375 height with gland; During use, detection cell main body is put upside down, made platform upward, sheet testing sample is placed on platform, covers and compress gland, and testing sample is revealed from detection window, then by the platform of detection cell main body down, inserts and detect main body; Like this, not only the shape of testing sample is unrestricted, and the area of detection of all samples is all unified, and testing result is more reliable.
Circuit connecting relation of the present utility model is, microprocessor is connected with light source 323, optical signal detector 323 and LCDs 2 custom circuits, microprocessor is controlled the open and close of light source, light source inspires the fluorescence of testing sample in detection cell 37 by detecting main body 30,322 of optical signal detectors feed back to microprocessor by the fluorescence signal collecting, microprocessor is just processed into digital signal by light signal, then fluorescence content value is presented in LCDs.
In the present embodiment, all parts all adopt conventional commercially available prod, for example, the integrated optic-electronic sensor that optical signal detector adopts Japanese Bin Song company to produce, model is S2684 series; The 8-bit microcontroller of the STC89 series that microprocessor ShiSST company produces, internal storage is 64K.Other products with equal effect are alternative the said goods all.
The assembling process of above-mentioned fluoroscopic examination module is as follows: 1) light source transmitting and light signal reception integrated device 32 are fixed on to frame body 31 bottoms; 2) above optical signal detector 322, by lens orientation ring 33, install Fresnel Lenses and optical filter; 3) by lens position ring 38, biconvex lens 36 is fixed on lens step 310 again; 4) above-mentioned mounted detection main body 30 is fixed on body by main body locating ring 39; 5) finally put into the detection cell that testing sample is housed.
The course of work of the above-mentioned fluorescer pick-up unit that the utility model provides is, first detection cell main body 372 is put upside down, platform 376 upward, sheet testing sample is placed on platform 376, gland 371 is buckled on platform 376 and compresses, make to appear in the detection window 377 on gland 371 whole are testing samples, upset detection cell 37, make gland 371 below after, put it in the detection main body 30 being fixed on body 1 power-on 5; Microprocessor is controlled all or part of LED light source 323 emission of lights, and index path is shown in Fig. 3, and light forms parallel beam through cylindrical hole 312 and injects biconvex lens 36, then through its focusing, is mapped on the testing sample of detection cell 37, excites generation fluorescence; Fluorescence becomes again parallel beam after biconvex lens 36, first through Fresnel Lenses 35, focuses on and strengthens fluorescence signal, then converge on optical signal detector 322 after optical filter 34 elimination parasitic lights; The microprocessor processes of light signal through being attached thereto becomes to detect numerical value, the database that the fluorescence content value that prestores a large amount of actual samples in microprocessor is aggregated into corresponding fluorescence intensity data, comparing in the fluorescence intensity level recording and database, associated with corresponding fluorescence content value again, finally fluorescence content value is reflected in LCDs 2, reads.
The testing sample of this device can be that the scraps of paper, cloth sheet etc. can be pressed in the planar sample in detection cell; When tracer liquid (as liquid detergent etc.) or nonplanar solid (as samples such as pulverous washing powder and erose steamed buns), after can the fluorescer in sample being dissolved according to conventional method, infiltrate on the scraps of paper or cloth sheet, then detect.
Using fluorescer pick-up unit of the present utility model and the fluorophotometer Quantech(of U.S. Turner company model is FM109515-33) carry out contrast experiment, testing sample is selected certain brand washing agent, certain brand face tissue and certain brand clothing, testing result is respectively in Table 1-3, to verify the reliability of the utility model fluorescer pick-up unit experimental result.
The fluoroscopic examination result of table 1 washing agent
The fluoroscopic examination result of table 2 face tissue
The fluoroscopic examination result of table 3 clothing
Contrast three groups of data, find that this device and the testing result mean value of fluorophotometer do not exist deviation, have therefore proved the reliability of the fluorescer pick-up unit that the utility model provides.
The above is only preferred implementation of the present utility model; it should be noted that; for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. fluorescer pick-up unit, comprise body, body upper surface is provided with display screen and fluoroscopic examination module, it is characterized in that, fluoroscopic examination module comprises detection main body and detection cell, detect the frame body that main body comprises hollow barrel-type, frame body bottom is provided with light source, and frame body inner chamber is provided with optical signal detector, optical filter, biconvex lens and detection cell from the bottom to top successively.
2. fluorescer pick-up unit according to claim 1, is characterized in that, the top of optical filter is provided with a Fresnel Lenses, and both are fixed as one, and form one group of combined lens.
3. fluorescer pick-up unit according to claim 2, is characterized in that, frame body is hollow heavy wall tubular, and along cylinder, is axially uniformly distributed some through holes in barrel, and described light source is located at via bottoms.
4. fluorescer pick-up unit according to claim 3, is characterized in that, the upper outside of frame body is provided with for being fixed on the main body locating ring on body by detecting main body.
5. fluorescer pick-up unit according to claim 4, is characterized in that, the inwall on frame body top is formed for placing the lens step of biconvex lens lower than outer wall.
6. fluorescer pick-up unit according to claim 5, is characterized in that, lens position ring fixing on biconvex lens is fixed in biconvex lens on the lens step of frame body.
7. fluorescer pick-up unit according to claim 2, is characterized in that, described combined lens is fixed on optical signal detector top by lens orientation ring.
8. according to fluorescer pick-up unit described in claim 1-7 any one, it is characterized in that, described detection cell comprises detection cell main body and gland, detection cell lower body part be a diameter be less than detection cell main diameter for placing the platform of testing sample, for the gland of nested described platform, by being provided with the bottom surface of a detection window and vertical edge that surrounding is surrounded thereof, form, and with platform interference fit.
9. fluorescer pick-up unit according to claim 8, is characterized in that, the height of described platform is greater than the height on the vertical edge of described gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138390.4U CN203811541U (en) | 2014-03-24 | 2014-03-24 | Detection device for fluorescent whitening agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138390.4U CN203811541U (en) | 2014-03-24 | 2014-03-24 | Detection device for fluorescent whitening agent |
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| Publication Number | Publication Date |
|---|---|
| CN203811541U true CN203811541U (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420138390.4U Expired - Lifetime CN203811541U (en) | 2014-03-24 | 2014-03-24 | Detection device for fluorescent whitening agent |
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| Country | Link |
|---|---|
| CN (1) | CN203811541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107532995A (en) * | 2015-04-24 | 2018-01-02 | 株式会社岛津制作所 | Optical assay device |
-
2014
- 2014-03-24 CN CN201420138390.4U patent/CN203811541U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107532995A (en) * | 2015-04-24 | 2018-01-02 | 株式会社岛津制作所 | Optical assay device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |