CN202614683U - Determination device aiming at pesticide residue in food - Google Patents
Determination device aiming at pesticide residue in food Download PDFInfo
- Publication number
- CN202614683U CN202614683U CN 201220261888 CN201220261888U CN202614683U CN 202614683 U CN202614683 U CN 202614683U CN 201220261888 CN201220261888 CN 201220261888 CN 201220261888 U CN201220261888 U CN 201220261888U CN 202614683 U CN202614683 U CN 202614683U
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- determination device
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Abstract
The utility model discloses a determination device aiming at pesticide residue in food. The determination device consists of a bottom sheet, an enzyme sheet, a developing sheet and a covering film, wherein the enzyme sheet is paper containing cholinesterase and has the shape similar to white paper, the developing sheet is paper containing cholinesterase substrates and developing agents, and has the shape similar to white paper, and when the developing sheet is in contact with the enzyme sheet, the obvious color change can be generated; one layer of transparent cover film is arranged on the enzyme sheet and the developing sheet, the bottom sheet is added under the enzyme sheet and the developing sheet, the enzyme sheet and the developing sheet are bonded and connected onto the bottom sheet by glue, and the bottom sheet is pasted and connected with the cover film through glue. The determination device has the advantages that the sensitivity is high, the detection is convenient, the speed is high, the detection cost is low, and the determination device can be widely used for the fast detection of in-site samples and a great number of samples.
Description
Technical field
It is the biological chemistry pick-up unit that the utility model relates to a kind of, especially a kind of technical field that is directed against the determinator of residues of pesticides in the food.
Background technology
Traditional remains of pesticide detection method mainly contains: vapor-phase chromatography, liquid phase chromatography, supercritical fluid chromatography etc.These methods mainly are that remains of pesticide is carried out quantitative test, are through sample is carried out pre-service, promptly behind the extraction through sample, the purifying, utilize instrument that persticide residue is carried out assay determination.
This detection method accuracy is high, but also high to the extraction and the purifying requirement of sample, method of operating is loaded down with trivial details, and instrument and equipment is expensive, and the mensuration cycle is long, also needs the technical skill personnel operation, and different agricultural chemicals need adopt different disposal routes.For China's present case, testing result just can be come out after food was eaten often, thereby did not have the effect of prevention and monitoring.
Summary of the invention
The utility model is in order to solve described in the background technology the existing problem of Pesticides Testing classic method; The utility model provides a kind of determinator to residues of pesticides in the food; Easy and simple to handle, short without expensive instrument, detection time, in order to the food remains of pesticide is detected.
It is to take following technical scheme that the utility model solves its technical matters:
The utility model is dropped in extract to be detected on the enzyme sheet through having designed a kind of determinator to residues of pesticides in the food, places ten minutes, then makes enzyme sheet and colour-development sheet superimposed, reacts after three minutes, and it is negative or positive that the enzyme sheet promptly can demonstrate.When the nondiscolouring of enzyme sheet or slightly during sky-blue, promptly positive; Wherein, nondiscolouring is a strong positive, explain that residues of pesticides are higher, and sky-blue then is the weak positive, explains that persticide residue is lower.When the enzyme sheet becomes sky blue, then negative, non agricultural chemical residuum is described.
The utility model specifically provides a kind of determinator to residues of pesticides in the food, and this device is made up of egative film, enzyme sheet, colour-development sheet and epiphragma, and the enzyme sheet is the scraps of paper that contain cholinesterase, and its shape is like the white scraps of paper; Colour-development sheet is the scraps of paper that contain cholinesterase substrate and developer, and shape is like the white scraps of paper; When colour-development sheet with after the enzyme sheet contacts, have obvious color and change; At the enzyme sheet and the epiphragma of layer of transparent is arranged above the colour-development sheet, add an egative film below enzyme sheet and the colour-development sheet, with glue enzyme sheet and colour-development sheet are bonded on the egative film, egative film and epiphragma stick with glue and connect.
The determinator to residues of pesticides in the food that provides according to above-mentioned utility model has following characteristics:
The utility model is highly sensitive, and is easy to detect, quick, and it is low to detect cost, can be widely used in the fast detecting of on-the-spot sample and a large amount of samples.
Description of drawings
Fig. 1 is the structural representation of the utility model a kind of pattern when raising epiphragma.
Fig. 2 is the longitudinal sectional view of the utility model.
Among Fig. 1-2,1-egative film, 2-enzyme sheet, 3-colour-development sheet, 4-epiphragma.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is done detailed description further.
As shown in the figure, a kind of determinator to residues of pesticides in the food, this device is made up of egative film (1), enzyme sheet (2), colour-development sheet (3) and epiphragma (4), and enzyme sheet (2) is the scraps of paper that contain cholinesterase, and its shape is like the white scraps of paper; Colour-development sheet (3) is the scraps of paper that contain cholinesterase substrate and developer, and shape is like the white scraps of paper; When colour-development sheet (3) with after enzyme sheet (2) contacts, have obvious color and change; The epiphragma (4) that layer of transparent is arranged at enzyme sheet (2) and above the colour-development sheet (3) in order to keep enzyme sheet (2), the stability of colour-development sheet (3), activity and moistureproof, and is avoided the phase mutual interference; Add an egative film (1) below enzyme sheet (2) and the colour-development sheet (3),, enzyme sheet (2) and colour-development sheet (3) are bonded on the egative film (1), egative film (1) and epiphragma (4) company of sticking with glue with glue in order to carry enzyme sheet (2) and colour-development sheet (3).
Extract to be detected is dropped on the enzyme sheet (2), placed ten minutes, then make enzyme sheet (2) and colour-development sheet (3) superimposed, react after three minutes, it is negative or positive that enzyme sheet (2) promptly can demonstrate.When (2) nondiscolouring of enzyme sheet or slightly during sky-blue, promptly positive; Wherein, nondiscolouring is a strong positive, explain that residues of pesticides are higher, and sky-blue then is the weak positive, explains that persticide residue is lower.When enzyme sheet (2) when becoming sky blue, then negative, non agricultural chemical residuum is described.
As stated; Can realize the utility model preferably; The above embodiments only are that the preferred implementation of the utility model is described, and are not that scope to the utility model limits, under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that the common engineering technical personnel in this area make the technical scheme of the utility model all should fall in the definite protection domain of the utility model.
Claims (1)
1. the determinator to residues of pesticides in the food is characterized in that this determinator is made up of egative film, enzyme sheet, colour-development sheet and epiphragma, and the enzyme sheet is the scraps of paper that contain cholinesterase, and its shape is like the white scraps of paper; Colour-development sheet is the scraps of paper that contain cholinesterase substrate and developer, and shape is like the white scraps of paper; When colour-development sheet with after the enzyme sheet contacts, have obvious color and change; At the enzyme sheet and the epiphragma of layer of transparent is arranged above the colour-development sheet, add an egative film below enzyme sheet and the colour-development sheet, with glue enzyme sheet and colour-development sheet are bonded on the egative film, egative film and epiphragma stick with glue and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261888 CN202614683U (en) | 2012-06-05 | 2012-06-05 | Determination device aiming at pesticide residue in food |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261888 CN202614683U (en) | 2012-06-05 | 2012-06-05 | Determination device aiming at pesticide residue in food |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202614683U true CN202614683U (en) | 2012-12-19 |
Family
ID=47348372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220261888 Expired - Fee Related CN202614683U (en) | 2012-06-05 | 2012-06-05 | Determination device aiming at pesticide residue in food |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202614683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954273A (en) * | 2016-05-04 | 2016-09-21 | 新疆农业大学 | "Relief" type paper-based micro-fluidic detection device and production method thereof |
-
2012
- 2012-06-05 CN CN 201220261888 patent/CN202614683U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954273A (en) * | 2016-05-04 | 2016-09-21 | 新疆农业大学 | "Relief" type paper-based micro-fluidic detection device and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20130605 |