CN108169212B - Monitor vegetables agriculture residual anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating and method - Google Patents
Monitor vegetables agriculture residual anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating and method Download PDFInfo
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- CN108169212B CN108169212B CN201810155644.6A CN201810155644A CN108169212B CN 108169212 B CN108169212 B CN 108169212B CN 201810155644 A CN201810155644 A CN 201810155644A CN 108169212 B CN108169212 B CN 108169212B
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- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
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- G01N21/658—Raman scattering enhancement Raman, e.g. surface plasmons
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Abstract
The invention discloses anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating and method that monitoring vegetables agriculture is residual, spreader, scratch diskette device of rotation driving and electronic control unit, Raman monitoring device and the substrate storage box that scratch diskette, sample to be coated including placing sample to be coated are coated.U-shaped scratch diskette counterclockwise movement is driven by work disk drive device, initially enter coating work region, answer chip positioning that surface enhanced substrate is applied in sample by location sense, after coating, scratch diskette continues to rotate into detection workspace, to cooperate Raman probe to synchronize real-time detection, realize surface enhanced Raman technique to the automatic coating of sample, quick and precisely, Sensitive Detection integration.The present invention is by carrying out preprogramming to electronic control unit, controlling coating duration and coating speed and controlling the velocity of rotation and rotation time length of scratch diskette device of rotation driving.By the coordinated control of electronic control unit, it can be ensured that the homogeneity of the coating of sample to be coated.
Description
Technical field
The present invention relates to technical field of agricultural product detection, in particular to a kind of anti-oxidation U-shaped surface that monitoring vegetables agriculture is residual
Enhance Raman substrate apparatus for coating and method.
Background technique
China uses big country as main pesticide producing in the world, and Pesticide Residue is increasingly becoming restriction China and can hold
Supervention opens up food-safety problem the most outstanding.Raman spectrum has lossless quick advantage, but Raman scattering effect is one
A very weak process, light intensity are generally only about the 10 of incident intensity-10, cause Raman signal very weak.Surface-enhanced Raman dissipates
The intensity that can significantly improve Raman signal is penetrated, the detection limit of object to be detected is effectively reduced, is suitble to detection trace level agriculture residual.
Chinese invention patent application CNIO4568900A disclose a kind of detection of agricultural products Raman surface enhancing solution from
Dynamic drop coating device can be realized automatically by the surface of surface-enhanced solution drop coating to sample to be tested in multiple positions of sample
Drop coating surface-enhanced solution, it is final to realize surface enhanced Raman technique to the automatic drop coating of sample.But substrate drop coating, the residual inspection of agriculture
It surveys link to be detached from, while placement can cause oxygenolysis to substrate for a long time, lack integration operation.
Summary of the invention
In order to overcome the disadvantages mentioned above and deficiency of the prior art, the purpose of the present invention is to provide a kind of monitoring vegetables agriculture is residual
Anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating and method, in the Raman spectrum detection process of agricultural product, automatically into
The coating of row surface-enhanced solution and real-time detection.
The purpose of the present invention is achieved through the following technical solutions:
Monitor the residual anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating of vegetables agriculture, including coating work device, Raman
Monitoring device, substrate storage box and electronic control unit；
The coating work device includes that spreader, scratch diskette, scratch diskette operation driving device, bracket and No.1 positioning pass
Sensor；The concave structure of the shape of bracket；Top in concave structure is connected to a downward opening U-shaped shelf, U-shaped shelf
Two ends be respectively equipped with the Raman probe and spreader being directed downward；The underface of Raman probe and spreader is bracket bottom
, a scratch diskette operation driving device is put on the bracket base, scratch diskette, which is run, passes through conducting wire company above driving device
Proceed with one's work disk；
The scratch diskette has multiple, and two neighboring scratch diskette is tangent and fixed, two neighboring in multiple scratch diskettes successively to connect
It connects, is integrally formed a U-shaped structure；One square disk body for having partition is set on each scratch diskette；The square disk
Positioning induction chip is provided on body；
Working region includes coating work region and Raman detection region；The section semicircular in shape shape of working region, work
Region is surrounded by three side walls, and open side is set as scratch diskette inlet and outlet；
The Raman monitoring device includes Raman system, Raman probe and No. two alignment sensors；
Scratch diskette operating driving device include driving motor and driven by the driving motor and the castor that rotates；It applies
No.1 alignment sensor and No. two alignment sensors are respectively provided on cloth device and Raman probe；
The deepfreeze case for the FYL-YS-100E model that substrate storage box selection work temperature is 2-8 DEG C is located at the branch
Frame is equipped with the top of a U-shaped shelf, and substrate storage box is connect with spreader；
Electronic control unit select 8 tunnel table procedure controller of TPC 4-4TD type, electronic control unit by connection respectively with coating
Device, scratch diskette, scratch diskette operation driving device, No.1 alignment sensor, Raman system, Raman probe and No. two alignment sensors
Connection；
To further realize the object of the invention, it is preferable that the working region selects U-shaped scratch diskette upper surface 2-10cm
Height section.
Preferably, the section of the working region is in the semi-circular shape of radius 50-60cm.
Preferably, the Raman system selects the portable low-res Raman spectrometer of RSL-1 type.
Preferably, the Raman probe uses model SPL-RPB-785 compact Raman probe.
Preferably, the working region is by being divided into Raman detection region and coating work region with center line.
Preferably, the spreader uses QXG molded line stick spreader, and coating effective width is 10-15mm.
Preferably, the positioning induction chip is located at the central location of each scratch diskette.
Using the anti-oxidation U-shaped surface enhanced Raman substrate coating method that the monitoring vegetables agriculture of above-mentioned apparatus is residual, including with
Lower step:
S1, when initial, each vegetable sample is smoothly placed on each scratch diskette, and the bottom righthand side of U-shaped scratch diskette is charging
End, U-shaped scratch diskette at the uniform velocity transport counterclockwise, and preparation sequentially enters coating work region and Raman detection region, this
When positioning inductor have turned on；
S2, scratch diskette operation driving device drive scratch diskette along starting turning counterclockwise under the control of the electric control unit,
It first operates into coating work region, each sample passes through four sides partition on square disk body and realizes that every disk sample can be fixed steadily
On scratch diskette, prevents sample outside centrifugal force produced by turning due to be thrown out of, when every sample is transported by U-shaped scratch diskette
When immediately below to spreader, electronic control unit then receives No.1 alignment sensor to the inductive signal A of positioning induction chip, control
To be coated sample of the spreader on the scratch diskette of stagnation is coated, and scratch diskette runs driving device and stops driving scratch diskette turn
Dynamic, coating track is a line from left to right, and forming a layer thickness is about 3-5mm uniform films, prevents excessive substrate from using and oxygen
Change；
S3, the scratch diskette after coating are rerunned into Raman detection region, when electronic control unit receives No. two positioning
When sensor is to the inductive signal B for positioning induction chip, controls have been coated with sample of the Raman probe on scratch diskette and is detected,
The residual signal C of the agriculture subsequently detected is connected to Raman system by connection, by with pesticide standard database matching, work as pesticide
When residual is lower than the safety value set, scratch diskette is continued to run, if the pesticide residue detected is equal to or higher than the safety of setting
Value, the number of the disk position are recorded, and Raman detection is synchronous progress with substrate coating in whole process；Then in the control of electronic control unit
Lower drive scratch diskette operates out working region, and the sample for being recorded number is admitted to sample clean pond and cleans.
Preferably, the dead time that scratch diskette operation driving device stops driving scratch diskette rotation is 1 second.
The present invention controls coating duration and coating speed and control scratch diskette by carrying out preprogramming to electronic control unit
The velocity of rotation and rotation time length of device of rotation driving, it can be ensured that the consistency of sample to be coated.
Compared with prior art, the present invention has the following advantages and beneficial effects:
1) design of dark colored substrate storage box of the present invention can prevent enhancing substrate from decomposing in light and aoxidizing；Overcome reality
Substrate disadvantage easy to oxidize in life.
2) the No.1 alignment sensor that the present invention designs controls spreader to stagnation when corresponding positioning induction chip
Sample to be coated on scratch diskette is coated；No. two designed alignment sensors can control when to positioning induction chip
Have been coated with sample of the Raman probe on scratch diskette is detected, and the present invention is able to achieve pesticide residue automation coating cycle detection
Integration；Realize the coating of enhancing substrate and Raman detection integration operation.
3) partition designed by the present invention, which is able to achieve every disk sample, to be firmly secured on scratch diskette, prevent sample because turning
It is curved produced by outside centrifugal force and be thrown out of.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for monitoring the residual anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating of vegetables agriculture.
Fig. 2 is the schematic diagram of the working region in Fig. 1.
Fig. 3 is the structural schematic diagram of scratch diskette in Fig. 1.
Fig. 4 is electronic control unit and related component connection schematic diagram in Fig. 1.
Specific embodiment
For a better understanding of the invention, the present invention is further described with reference to the accompanying drawings and examples, but this hair
Bright embodiment is without being limited thereto.
As shown in Figure 1, the anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating that monitoring vegetables agriculture is residual, including coating work
Make device 1, Raman monitoring device 2, substrate storage box 3 and electronic control unit 4.
Coating work device 1 include spreader 1-1, scratch diskette 1-2, scratch diskette operation driving device 1-3, bracket 1-4 and
No.1 alignment sensor 1-5；The concave structure of the shape of bracket 1-4；Top in concave structure be connected to one it is opening down
U-shaped shelf, two ends of U-shaped shelf are respectively equipped with the Raman probe 2-2 and spreader 1-1 being directed downward；Raman probe
The underface of 2-2 and spreader 1-1 are bracket 1-4 pedestal, and a scratch diskette operation driving dress is put on the bracket 1-4 pedestal
1-3 is set, the top scratch diskette operation driving device 1-3 is connected to scratch diskette 1-2 by conducting wire.
As shown in Fig. 2, scratch diskette 1-2 has multiple, two neighboring scratch diskette is tangent and fixed, and multiple scratch diskette 1-2 are successively
Connection, is integrally formed a U-shaped structure.
As shown in figure 3, the square disk body 1-2-1 for having partition is arranged on each scratch diskette 1-2；The square
Positioning induction chip 1-2-2 is provided on disk body 1-2-1.
As shown in Fig. 2, working region 5 includes coating work region 5-1 and Raman detection region 5-2；Working region 5 selects
The U-shaped upper surface scratch diskette 1-2 2-10cm height section, the section of working region 5 are in the semi-circular shape of radius about 50cm, are used for
The place of coating substrate and detection is provided.Working region is surrounded by three side walls, and open side is set as scratch diskette inlet and outlet.
Raman monitoring device 2 includes Raman system 2-1, Raman probe 2-2 and No. two alignment sensor 2-3.Raman system
Select the portable low-res Raman spectrometer of RSL-1 type；Raman probe 2-2 is drawn using model SPL-RPB-785 compact
Graceful probe.Raman probe 2-2 is fixed on the lower section of the U-shaped shelf of bracket 1-4, connects a spreader 1-1 at relative position,
And it is arranged right below a working region 5, and working region 5 is by being divided into Raman detection region 5-2 and painting with center line
Cloth working region 5-1.
Scratch diskette operating driving device 1-3 include driving motor and driven by the driving motor and the castor that rotates；It applies
Cloth device 1-1 uses QXG molded line stick spreader, and coating effective width is 10-15mm.On spreader 1-1 and Raman probe 2-2 respectively
It is located at each equipped with No.1 alignment sensor 1-5 and No. two alignment sensors 2-3, corresponding positioning induction chip 1-2-2
The central location of scratch diskette 1-2.No.1 alignment sensor 1-5 and No. two alignment sensor 2-3 all pass through connection connect it is automatically controlled
Unit 4.
The deepfreeze case for the FYL-YS-100E model that 3 selection work temperature of substrate storage box is 2-8 DEG C, for being protected from light
Surface enhanced Raman substrate is stored, the top of a U-shaped shelf, substrate storage box 3 and spreader are equipped with positioned at the bracket
1-1 connection.
As shown in figure 4, electronic control unit 4 selects 8 tunnel table procedure controller of TPC 4-4TD type, Chinese character is arranged using table
Display mode, electronic control unit 4 by connection respectively with spreader 1-1, scratch diskette 1-2, scratch diskette run driving device 1-3,
No.1 alignment sensor 1-5, Raman system 2-1, Raman probe 2-2 and No. two alignment sensor 2-3 connections；Control coating work
Spreader 1-1, scratch diskette 1-2, scratch diskette operation driving device 1-3, No.1 alignment sensor 1-5 and its Raman in device 1
The operation of Raman system 2-1, Raman probe 2-2 and No. two alignment sensor 2-3 in monitoring device 2, strong anti-interference performance, can
By performance height.
Preferably, the substrate storage box 3 above U-shaped shelf is dark color, for storing surface enhanced Raman substrate, prevents from increasing
Strong basis bottom decomposes in light and aoxidizes.
Preferably, under the control of electronic control unit 4, scratch diskette operation driving device 1-3 internal gear is turned clockwise
It is dynamic, drive the gear being connected in scratch diskette 1-2 also and then to rotate clockwise and move ahead, the control of electronic control unit 4 coating
To be coated sample of the device 1-1 on scratch diskette 1-2 is coated.
Preferably, the castor drives U-shaped scratch diskette to convey counterclockwise.
The present invention controls coating duration and coating speed and control scratch diskette by carrying out preprogramming to electronic control unit
The velocity of rotation and rotation time length of device of rotation driving, it can be ensured that the consistency of sample to be coated.
A kind of anti-oxidation U-shaped surface enhanced Raman substrate coating method that monitoring vegetables agriculture is residual, comprising the following steps:
S1, when initial, each vegetable sample (such as leaf vegetables solution) is smoothly placed on each scratch diskette 1-2, such as Fig. 2 institute
Show, bottom righthand side is feed end, and U-shaped scratch diskette at the uniform velocity transports counterclockwise, and preparation sequentially enters coating work region 5-1
With Raman detection region 5-2, positioning inductor is had turned at this time；
S2, scratch diskette operation driving device 1-3 drive scratch diskette 1-2 along opening counterclockwise under the control of electronic control unit 4
Begin to rotate, first operate into coating work region 5-1, each sample passes through four sides partition on square disk body 1-2-1 and realizes every disk
Sample can be firmly secured on scratch diskette 1-2, prevented sample outside centrifugal force produced by turning due to be thrown out of, when every
When sample is transported by U-shaped scratch diskette to immediately below spreader 1-1, electronic control unit 4 receives No.1 alignment sensor 1-5 to positioning
The inductive signal A of induction chip 1-2-2 then controls to be coated sample of the spreader 1-1 on the scratch diskette 1-2 of stagnation and is applied
Cloth, the driving device 1-3 of scratch diskette operation at this time stop driving scratch diskette 1-2 rotation (dead time be 1 second), coating track be from
Left-to-right a line, forming a layer thickness is about 3-5mm uniform films, prevents excessive substrate from using and aoxidizing.
S3, the scratch diskette after coating are rerunned into Raman detection region 5-2, when electronic control unit 4 receives No. two
When alignment sensor 2-3 is to the inductive signal B for positioning induction chip 1-2-2, i.e. control Raman probe 2-2 is on scratch diskette 1-2
The sample that has been coated with detected, the residual signal C of the agriculture subsequently detected is connected to Raman system 2-1 by connection, by with
Pesticide standard database matching, when safety value of the pesticide residue lower than setting, scratch diskette 1-2 is continued to run, if detect
Pesticide residue is equal to or higher than the safety value of setting, and the number of the disk position is recorded, and Raman detection and substrate, which are coated with, in whole process is
Synchronous progress.It then drives scratch diskette 1-2 to operate out working region 5 under the control of electronic control unit 4, is recorded the sample of number
Product are admitted to sample clean pond and clean.
It is coated with and detects compared to the prior art independently of each other, the present invention is able to achieve pesticide residue automation coating cycle inspection
Survey integration；The design of the dark colored substrate storage box can prevent enhancing substrate from decomposing in light and aoxidizing；Designed partition energy
It realizes that every disk sample can be firmly secured on scratch diskette, prevents sample outside centrifugal force produced by turning due to be thrown out of；
Designed No.1 alignment sensor, when corresponding positioning induction chip, control spreader is to be coated on the scratch diskette of stagnation
Cloth sample is coated；No. two designed alignment sensors can control Raman probe to work when to positioning induction chip
The sample that has been coated on disk is detected.
Embodiments of the present invention are simultaneously not restricted by the embodiments, other any real without departing from spirit of the invention
Made changes, modifications, substitutions, combinations, simplifications under matter and principle, should be equivalent substitute mode, are included in the present invention
Protection scope within.
Claims (9)
1. monitoring the residual anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating of vegetables agriculture, it is characterised in that including coating work
Device, Raman monitoring device, substrate storage box and electronic control unit；
The coating work device includes spreader, scratch diskette, scratch diskette operation driving device, bracket and No.1 orientation sensing
Device；The concave structure of the shape of bracket；Top in concave structure is connected to a downward opening U-shaped shelf, U-shaped shelf
Two ends are respectively equipped with the Raman probe and spreader being directed downward；The underface of Raman probe and spreader is bracket bottom
, a scratch diskette operation driving device is put on the bracket base, scratch diskette, which is run, passes through conducting wire company above driving device
Proceed with one's work disk；
The scratch diskette has multiple, and two neighboring scratch diskette is tangent and fixed, two neighboring in multiple scratch diskettes to be sequentially connected, whole
Body constitutes a U-shaped structure；One square disk body for having partition is set on each scratch diskette；It is set on the square disk body
It is equipped with positioning induction chip；
Working region includes coating work region and Raman detection region；The section semicircular in shape shape of working region, working region
It is surrounded by three side walls, open side is set as scratch diskette inlet and outlet；Working region selects U-shaped scratch diskette upper surface 2-10cm
Height section is located at below spreader；
The Raman monitoring device includes Raman system, Raman probe and No. two alignment sensors；
Scratch diskette operation driving device include driving motor and driven by the driving motor and the castor that rotates；Spreader
With No.1 alignment sensor and No. two alignment sensors are respectively provided on Raman probe；
The deepfreeze case for the FYL-YS-100E model that substrate storage box selection work temperature is 2-8 DEG C is located on the bracket
Top equipped with a U-shaped shelf, substrate storage box are connect with spreader；
Electronic control unit select 8 tunnel table procedure controller of TPC 4-4 TD type, electronic control unit by connection respectively with spreader,
Scratch diskette, scratch diskette operation driving device, No.1 alignment sensor, Raman system, Raman probe and No. two alignment sensors connect
It connects.
2. the residual anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating of monitoring vegetables agriculture according to claim 1, special
Sign is that the section of the working region is in the semi-circular shape of radius 50-60cm.
3. the residual anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating of monitoring vegetables agriculture according to claim 1, special
Sign is that the Raman system selects the portable low-res Raman spectrometer of RSL-1 type.
4. the residual anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating of monitoring vegetables agriculture according to claim 1, special
Sign is that the Raman probe uses model SPL-RPB-785 compact Raman probe.
5. the residual anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating of monitoring vegetables agriculture according to claim 1, special
Sign is that the working region is by being divided into Raman detection region and coating work region with center line.
6. the residual anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating of monitoring vegetables agriculture according to claim 1, special
Sign is that the spreader uses QXG molded line stick spreader, and coating effective width is 10-15mm.
7. the residual anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating of monitoring vegetables agriculture according to claim 1, special
Sign is that the positioning induction chip is located at the central location of each scratch diskette.
8. the residual anti-oxidation U-shaped surface enhanced Raman substrate coating method of the monitoring vegetables agriculture of application claim 1 described device,
Characterized by the following steps:
S1, when initial, each vegetable sample is smoothly placed on each scratch diskette, and the bottom righthand side of U-shaped scratch diskette is feed end, U
Type scratch diskette at the uniform velocity transports counterclockwise, and preparation sequentially enters coating work region and Raman detection region, fixed at this time
Position inductor has turned on；
S2, scratch diskette operation driving device drive scratch diskette along starting turning counterclockwise under the control of the electric control unit, first transport
Coating work region is rotated into, each sample passes through four sides partition on square disk body and realizes that every disk sample can be firmly secured at work
Make on disk, prevents sample outside centrifugal force produced by turning due to be thrown out of, when every sample is transported by U-shaped scratch diskette to painting
When immediately below cloth device, electronic control unit then receives No.1 alignment sensor to the inductive signal A of positioning induction chip, control coating
To be coated sample of the device on the scratch diskette of stagnation is coated, and scratch diskette runs driving device and stops driving scratch diskette rotation,
Coating track is a line from left to right, and forming a layer thickness is about 3-5mm uniform films, prevents excessive substrate from using and aoxidizing；
S3, the scratch diskette after coating are rerunned into Raman detection region, when electronic control unit receives No. two orientation sensings
When device is to the inductive signal B for positioning induction chip, controls have been coated with sample of the Raman probe on scratch diskette and detected, then
The residual signal C of the agriculture detected is connected to Raman system by connection, by with pesticide standard database matching, work as pesticide residue
Lower than setting safety value when, scratch diskette continues to run, if the pesticide residue detected be equal to or higher than setting safety value, should
The number of disk position is recorded, and Raman detection is synchronous progress with substrate coating in whole process；Subsequent band under the control of the electric control unit
Dynamic scratch diskette operates out working region, and the sample for being recorded number is admitted to sample clean pond and cleans.
9. the residual anti-oxidation U-shaped surface enhanced Raman substrate coating method of monitoring vegetables agriculture according to claim 8, special
Sign is that it is 1 second that the scratch diskette operation driving device, which stops driving the dead time of scratch diskette rotation,.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810155644.6A CN108169212B (en) | 2018-02-23 | 2018-02-23 | Monitor vegetables agriculture residual anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810155644.6A CN108169212B (en) | 2018-02-23 | 2018-02-23 | Monitor vegetables agriculture residual anti-oxidation U-shaped surface enhanced Raman substrate apparatus for coating and method |
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| KR101361652B1 (en) * | 2011-05-29 | 2014-02-14 | 한국화학연구원 | Raman assay-based High Throughput multiplex drug screening apparatus |
| CN104655606A (en) * | 2013-11-15 | 2015-05-27 | 中国农业大学 | Optical detection system for nondestructive detection of pesticide residue on surface of fruit and vegetable |
| CN104568900B (en) * | 2014-12-26 | 2018-03-23 | 中国农业大学 | A kind of detection of agricultural products strengthens solution automatic drip coating device with Raman surface |
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