CN208902613U - Detect the paper substrate micro-fluidic chip of heavy metal ion - Google Patents
Detect the paper substrate micro-fluidic chip of heavy metal ion Download PDFInfo
- Publication number
- CN208902613U CN208902613U CN201821467059.1U CN201821467059U CN208902613U CN 208902613 U CN208902613 U CN 208902613U CN 201821467059 U CN201821467059 U CN 201821467059U CN 208902613 U CN208902613 U CN 208902613U
- Authority
- CN
- China
- Prior art keywords
- layer
- reaction tank
- pond
- reagent
- channel
- 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.)
- Active
Links
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model provides a kind of paper substrate micro-fluidic chip for detecting heavy metal ion, for quickly detecting heavy metal ion in petroleum wastewater.Paper substrate micro-fluidic chip is divided into four main channels, it is characterised in that: disposably can detecte contents of many kinds of heavy metal ion；Channel is provided with filtering sponge, and the processing such as oil removing, organic matter can be carried out to sample；Designing its gradient channel is to enter pond of developing the color providing power for solution after the material processing by three kinds of different hydrophilic concentration in splicing.The utility model technical characterstic and beneficial effect are embedded in lautertuns with the carbon sponge of double helix, can not only be allowed test sample and carbon sponge contact area sufficiently large, fully ensured that and adsorbed to the organic matter and oils that contain in test sample.The design in multistage gradient channel keeps the attraction to sample sufficiently large, guarantees that sample can be flowed into smoothly in colour developing slot.Environmental monitoring can be realized it is continuous, in real time, quickly detect heavy metal ion.
Description
Technical field
Concentration of heavy metal ion in petroleum wastewater is quickly detected using colorimetric method multichannel the utility model relates to a kind of
Paper substrate micro-fluidic chip.
Technical background
With the development of the social economy, pollution suffered by social environment is also more and more, petroleum wastewater is today's society
One of pollution sources.It, can be to environment and human body containing poisonous and harmful substances such as a large amount of oil substances, heavy metals in petroleum wastewater
Health causes damages.Currently, the detection of heavy metal ion causes extensive concern in petroleum wastewater.Therefore researchers invent
Various methods detect heavy metal ion.Since traditional detection heavy metal method instrument price is expensive, running cost
With high, not portable, be not able to satisfy petroleum wastewater is continuously monitored, the requirement of on-site measurement method.Therefore, it is necessary to a kind of continuous, real
When, portable, high sensitivity, multichannel quickly detect the papery micro-fluidic chip of heavy metal ion.
Utility model content
The shape and structure of the utility model is, and it is an object of the present invention to provide a kind of novel paper base microfluidic chip structure, has gradient
Channel, multilayer, the structure of multichannel, what detection accuracy improved, contents of many kinds of heavy metal ion can be detected.
The technical solution of the utility model are as follows: a kind of paper substrate micro-fluidic chip for detecting heavy metal ion, by first layer, the
Two layers form with third layer paper substrate and base layer support substrate, it is characterised in that: the chip rectangle, by three layers of shape and ruler
Very little paper substrate of the same size, by super-hydrophobic processing is pasted together.
The first layer processes perforation paper substrate or more by the different size of chip in first layer paper substrate
The colour developing pond of thickness, reaction tank, reagent passage, reagent mouth, sample port, lautertuns, shunts pond, split channel at gradient channel
Geomery.Reagent mouth is rectangle, and colour developing pond, reaction tank, sample port, shunting pond are circle, and gradient channel is trapezoidal.Institute
The center that chip is arranged in sample port is stated, the both sides of sample port symmetrically connect 2 lautertuns, the broad-ruler of every lautertuns
It is very little consistent with length dimension, all respectively lead to corresponding shunting pond.Each shunting pond connects 2 split channels.
Each split channel respectively leads to a corresponding reaction tank, each reaction tank each communicate with one it is respectively right
The colour developing pond that the gradient channel answered is connected with gradient channel.Reagent mouth have 2 respectively in the upper and lower position of sample port, each reagent
Mouth one reagent passage of bilateral symmetry leads to reaction tank.Each reaction tank is connected with 1 reagent passage, reagent passage
It is connect with reagent mouth.
The second layer corresponds to the position in the first layer paper substrate of same chip specification, is machined with colour developing pond, gradient
Channel, reaction tank shunt pond, split channel and are pasted with filtering material, such as: carbon sponge.Filtering material is prepared into double helix
Structure.
The third layer corresponds to the position on the first layer and second layer paper substrate of same chip specification, is machined with aobvious
Color pond, reaction tank, and shunt pond, split channel, gradient channel position on respectively processing be pasted with the portion of different function
Part.The position for shunting pond, split channel, is pasted with the drainage strip of water suction.At the position of the gradient channel, it is pasted with three
The filter paper of a different hydrophilic concentration is gradually increased from reaction tank to the colour developing hydrophilic concentration in pond, i.e., hydrophilic ability gradually increases；It is same
The hydrophily filter paper sequence that each gradient channel of a chip is pasted is identical with specification.
The base layer support substrate corresponds on the first layer, the second layer and third layer paper substrate of same chip specification
Position, processing is pasted with the component of different function respectively on the position in develop the color pond, reaction tank.At the reaction tank position, glue
Patch is impregnated by previously passing through reaction reagent, dries etc. that treated and be pasted onto the filter paper sequin in substrate, and react
The bottom surface in pond is less than the bottom surface of split channel.Appropriate reagent is added by reagent mouth in reaction tank, flows into and reacts through reagent passage
Pond, reagent passage bottom surface are higher than reaction tank bottom surface.The colour developing Chi Weizhichu pastes and detects heavy metal ion not of the same race or of the same race
Colored filter paper.
Preferred in above-mentioned technical proposal, the identical treatment process of substrate first layer, the second layer of the third layer makes
It is finally successively pasted with light binding with base layer support substrate, is adhesively fixed with ultraviolet photoetching with ultra-hydrophobicity.Institute
Stating base layer support substrate is hydrophobic papery or hydrophobic plastic material.
Compared with prior art, the utility model has following the utility model has the advantages that paper substrate micro-fluidic chip is with double helix
Carbon sponge is embedded in lautertuns, can not only allow test sample and carbon sponge contact area sufficiently large, fully ensure that inspection
The organic matter and oils contained in sample is adsorbed, there are gap can also make the smooth flow forward of sample.And this is practical
The multistage gradient channel of new design keeps the attraction to sample sufficiently large, guarantees that sample can be flowed into smoothly in colour developing slot.Together
When, the hydrophily filter paper of each gradient channel is identical, guarantees that sample can achieve identical flow velocity and flow into colour developing slot, when control is reacted
Between, can better timing, judge different time heavy metal ion whether can fully reacting compared with standard color range card.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the first layer top view of the utility model.
Fig. 3 is the second layer top view of the utility model.
Fig. 4 is the gradient channel structural schematic diagram of the utility model.
Fig. 5 is the machining sketch chart of each layer substrate functional component of the utility model.
In figure: 1. colour developing ponds；2. gradient channel；3. reaction tank；4. reagent passage；5. reagent mouth；6. sample port；7. mistake
Filter pocket；8. shunting pond；9. split channel；10. filtering material；11. first layer；12. the second layer；13. third layer；14. bottom branch
Support group piece.
Specific embodiment
Referring to figs. 1 to the shape and structure in Fig. 5, a kind of paper substrate micro-fluidic chip of multi-channel detection heavy metal ion, by
First layer 11, the second layer 12 and 13 paper substrate of third layer and base layer support substrate 14 form.It is characterized by: the chip square
Shape, by three layers of shape and size, paper substrate of the same size, by super-hydrophobic processing is pasted together.
The first layer 11 processes in perforation paper substrate by the different size of chip in first layer paper substrate
The colour developing pond 1 of lower thickness, gradient channel 2, reaction tank 3, reagent passage 4, reagent mouth 5, sample port 6, lautertuns 7, shunt pond 8,
Split channel 9, the mutual channel 14 of filtrate geomery.Reagent mouth 5 is rectangle, and colour developing pond 1, sample port 6, shunts reaction tank 3
Pond 8 is circle, and gradient channel 2 is trapezoidal；The center of chip is arranged in the sample port 6, and the both sides of sample port 6 are symmetrical
2 lautertuns 7 are connected, the width dimensions of every lautertuns 7 are consistent with length dimension, all respectively lead to corresponding one point
Flow pond 8；Each shunting pond 8 connects 2 split channels 9；Each split channel 9 respectively leads to corresponding one
Reaction tank 3, each reaction tank 3 each communicate with the colour developing pond 1 that a corresponding gradient channel 2 and gradient channel 2 connect；
Reagent mouth 5 has 2 respectively in the upper and lower position of sample port 6, and each 5 one reagent passage of bilateral symmetry logical 4 of reagent mouth arrives reaction
Pond 3；Each reaction tank 3 and 1 reagent passage 4 is connected, and reagent passage 4 is connect with reagent mouth 5.
The second layer 12 corresponds to the position in 11 paper substrate of first layer of same chip specification, is machined with colour developing pond
1, gradient channel 2, reaction tank 3, shunt pond 8, split channel 9 and be pasted with filtering material 10.Filtering material 10 prepares spiral shell in pairs
Revolve structure.For example, filtering material 10 selects carbon sponge, it is designed to double-spiral structure, is embedded in it in lautertuns, make do not blocking up
Under the premise of filling in lautertuns, solution can be flowed into smoothly in reaction tank, and the contact area of carbon sponge and solution is big, makes
It filters more abundant.
The third layer 13 corresponds to the position in 12 paper substrate of first layer 11 and the second layer of same chip specification, adds
Work have colour developing pond 1, reaction tank 3, and shunt pond 8, split channel 9, gradient channel 2 position on respectively processing be pasted with not
The component of congenerous.The position for shunting pond 8, split channel 9, processing are pasted with drainage strip.The position of the gradient channel 2
The filter paper there are three different hydrophilic concentration is pasted at place, is gradually increased from reaction tank 3 to the colour developing hydrophilic concentration in pond 1, i.e., hydrophilic ability
It gradually increases.Paper base gradually increases the hydrophilic ability of water, i.e., bigger to the attraction of sample, and solution is enable smoothly to flow into
In colour developing slot.The hydrophily filter paper sequence that each gradient channel of the same chip is pasted is identical with specification.It ensure that four
The solution of gradient channel is flowed into colour developing slot with identical flow velocity substantially, improves the accuracy of experimental configuration.
The base layer support substrate 14,13 papery of first layer 11, the second layer 12 and third layer of corresponding same chip specification
Position on substrate, processing is pasted with the component of different function respectively on the position in develop the color pond 1, reaction tank 3.The reaction tank
At 3 positions, related reagent is used respectively, is shielded or is enhanced color range reaction to the interfering ion that filtered sample contains, protect
It demonstrate,proves the fully reacting of sample energy and improves accuracy.What reaction tank 3 was pasted is impregnated by previously passing through reaction reagent, after the processing such as drying
The filter paper sequin being pasted onto substrate, and processed by hierarchical design, make the bottom surface of reaction tank 3 lower than split channel 9
Bottom surface height structure design, ensure that the sample of filtering can smoothly flow into reaction tank.Reaction tank 3 is then by reagent mouth 5
Appropriate reagent is added, flows into reaction tank 3 through reagent passage 4, the bottom surface of the two interface is also the high reaction tank 3 of reagent passage 4
Low height structure design.Effect is can first to store certain solution when reagent cannot flow into simultaneously with sample and wait for another stream
It is fashionable to react, and can prevent the solution flowed into from flowing into the arrival colour developing of gradient channel 2 pond 1 in advance and react.The colour developing
At 1 position of pond, the colored filter paper for detecting heavy metal ion not of the same race or of the same race is pasted.Every kind of colored filter paper is in advance by not
It is impregnated with chromophoric solution, naturally dry of dangling is cut into the paper base sequin of colour developing 1 size of pond, takes out when use and be put into colour developing
It, can treated that sample develops the color to reaction tank 3 in pond 1.It can be directed to different detection of heavy metal ion in this way, prepare
Different colored filter papers.Also the colored filter paper for detecting heavy metal ion of the same race can be placed, multi-channel reaction colour developing is compareed,
Guarantee the accuracy of detection.
It is preferred in above-mentioned technical proposal, the substrate first layer 11 of the third layer 13, the identical processing of the second layer 12
Process makes it have ultra-hydrophobicity, is finally successively pasted with base layer support substrate 26 with optical cement, is bonded with ultraviolet photoetching
It is fixed.The base layer support substrate 14 is hydrophobic hard papery or hydrophobic hard plastic material.
The technical characteristics of the utility model is: the distribution shunt volume after sample treatment being capable of accurate quantification.Paper base miniflow
Control chip is divided into the split channel 9 of multiple samples, is disposably able to detect contents of many kinds of heavy metal ion.Lautertuns 7 is provided with filtering
Sponge can carry out the processing such as oil removing, organic matter to sample.The gradient channel 2 of design is by the material of three kinds of different hydrophilic concentration
On pasting after processing, entire paper substrate micro-fluidic chip channel is symmetrical, so that each channel has solution to flow through, guarantees it
It shunts uniformly, each reaction tank 3 and colour developing pond can be reached, complete chromogenic reaction.
Claims (2)
1. a kind of paper substrate micro-fluidic chip for detecting heavy metal ion, by first layer, the second layer and third layer paper substrate and bottom
Layer support substrate composition, it is characterised in that: the chip rectangle, it is of the same size by three layers of shape and size, by super-hydrophobic
The paper substrate of processing is pasted together；
The first layer processes perforation paper substrate thickness up and down by the different size of chip in first layer paper substrate
Colour developing pond, gradient channel, reaction tank, reagent passage, reagent mouth, sample port, lautertuns, shunt pond, split channel shape
Size；Reagent mouth is rectangle, and colour developing pond, reaction tank, sample port, shunting pond are circle, and gradient channel is trapezoidal；The sample
Product mouth is arranged in the center of chip, and the both sides of sample port symmetrically connect 2 lautertuns, the width dimensions of every lautertuns and
Length dimension is consistent, all respectively leads to corresponding shunting pond；Each shunting pond connects 2 split channels；It is described
Each split channel respectively leads to a corresponding reaction tank, each reaction tank each communicate with one it is corresponding
The colour developing pond that gradient channel is connected with gradient channel；Reagent mouth has 2 respectively in the upper and lower position of sample port, and each reagent mouth is left
A right symmetrical reagent passage leads to reaction tank；Each reaction tank is connected with 1 reagent passage, reagent passage and examination
The connection of agent mouth；
The second layer corresponds to the position in the first layer paper substrate of same chip specification, is machined with colour developing pond, gradient is led to
Road, reaction tank shunt pond, split channel and are pasted with filtering material；Filtering material is prepared into double-spiral structure；
The third layer, the position on the first layer and second layer paper substrate of corresponding same chip specification, be machined with colour developing pond,
Reaction tank, and shunt pond, split channel, gradient channel position on respectively processing be pasted with the component of different function；Institute
The position for shunting pond, split channel is stated, the drainage strip of water suction is pasted with；At the position of the gradient channel, there are three not for stickup
With the filter paper of hydrophilic concentration, gradually increased from reaction tank to the colour developing hydrophilic concentration in pond, i.e., hydrophilic ability gradually increases；The same core
The hydrophily filter paper sequence that each gradient channel of piece is pasted is identical with specification；
The base layer support substrate corresponds to the position on the first layer, the second layer and third layer paper substrate of same chip specification,
Processing is pasted with the component of different function respectively on the position in develop the color pond, reaction tank；At the reaction tank position, stickup is
It is impregnated by previously passing through reaction reagent, dries etc. that treated and be pasted onto the filter paper sequin in substrate, and the bottom of reaction tank
Face is less than the bottom surface of split channel；Appropriate reagent is added by reagent mouth in reaction tank, flows into reaction tank, reagent through reagent passage
Passage bottom is higher than reaction tank bottom surface；The colour developing Chi Weizhichu pastes the colour developing for detecting heavy metal ion not of the same race or of the same race
Filter paper.
2. a kind of paper substrate micro-fluidic chip for detecting heavy metal ion according to claim 1, it is characterised in that: described the
Three layers of substrate first layer, the identical treatment process of the second layer, make it have ultra-hydrophobicity, finally with base layer support substrate
On successively being pasted with light binding, it is adhesively fixed with ultraviolet photoetching；The base layer support substrate is hydrophobic papery or hydrophobic modeling
Expect material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821467059.1U CN208902613U (en) | 2018-09-08 | 2018-09-08 | Detect the paper substrate micro-fluidic chip of heavy metal ion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821467059.1U CN208902613U (en) | 2018-09-08 | 2018-09-08 | Detect the paper substrate micro-fluidic chip of heavy metal ion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208902613U true CN208902613U (en) | 2019-05-24 |
Family
ID=66571707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821467059.1U Active CN208902613U (en) | 2018-09-08 | 2018-09-08 | Detect the paper substrate micro-fluidic chip of heavy metal ion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208902613U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411963A (en) * | 2019-08-08 | 2019-11-05 | 重庆科技学院 | A kind of portable spectrophotometer of Heavy Metals in Waters ion detection |
| CN113466220A (en) * | 2021-06-17 | 2021-10-01 | 南通鑫铭环保技术有限公司 | Heavy metal ion detection device in waste water |
-
2018
- 2018-09-08 CN CN201821467059.1U patent/CN208902613U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411963A (en) * | 2019-08-08 | 2019-11-05 | 重庆科技学院 | A kind of portable spectrophotometer of Heavy Metals in Waters ion detection |
| CN113466220A (en) * | 2021-06-17 | 2021-10-01 | 南通鑫铭环保技术有限公司 | Heavy metal ion detection device in waste water |
| CN113466220B (en) * | 2021-06-17 | 2023-12-12 | 西安福天宝环保科技有限公司 | Detection device for heavy metal ions in wastewater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109100525B (en) | Using method of paper-based microfluidic chip for multi-channel detection | |
| CN109060793A (en) | A kind of paper substrate micro-fluidic core of multi-channel detection heavy metal ion | |
| CN208902613U (en) | Detect the paper substrate micro-fluidic chip of heavy metal ion | |
| ATE433572T1 (en) | METHOD, APPARATUS, REAGENT KIT AND REAGENT FOR DISTINCTION OF ERYTHROCYTES IN BIOLOGICAL SAMPLES | |
| CN109253907B (en) | Method for rapidly and auxiliarily detecting micro-plastic in water environment sample by using Nile red dyeing | |
| CN105388309B (en) | The automatic quick determination method of trace iron ions and system and application in Power Plant Water Vapor | |
| CN207472761U (en) | A kind of micro-fluidic detection chip and the kit for whole blood multiple determination | |
| CN205317674U (en) | A direct chemiluminescence micro -fluidic chip of magnetic particle for whole blood sample test | |
| CN104535514A (en) | Micro-fluidic chip for detecting fluoride in water body and preparation method thereof | |
| CN112916065B (en) | Microfluidic paper chip, preparation method thereof, microfluidic paper chip detection system and application | |
| Doménech-Carbó et al. | Spot tests: Past and present | |
| CN105424784A (en) | Microfluidic chip for detecting heavy metal ions in water and detection method | |
| CN105378468A (en) | Mini-gel comb | |
| CN108212228B (en) | Whole blood separation micro-fluidic chip, detection device and whole blood detection method | |
| CN116139951A (en) | Folding multi-channel paper-based micro-fluidic chip and preparation method and application thereof | |
| CN110354920B (en) | Paper-based micro-fluidic chip and phosphorylated polypeptide enrichment detection method based on same | |
| Hemmateenejad et al. | Microfluidic paper and thread-based separations: Chromatography and electrophoresis | |
| CN201876454U (en) | Test paper | |
| Benhabib et al. | Low-cost assays in paper-based microfluidic biomedical devices | |
| CN109939751B (en) | Microfluidic chip, detection device and detection method for whole blood detection | |
| CN207596861U (en) | Micro-fluidic tumour cell detection chip based on immunomagnetic isolation | |
| CN207143246U (en) | A kind of integrated form Terahertz superstructure nano biological sensor | |
| CN214224950U (en) | Heavy metal ion detection chip | |
| ATE53912T1 (en) | METHODS FOR CONCENTRATION AND DETERMINATION OF BIOMOLECULES AND CELLS. | |
| CN115290712A (en) | Paper-based three-dimensional microfluidic biosensor based on laser-induced graphene electrode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |