CN112649424A - Pesticide detection device and method for food detection - Google Patents
Pesticide detection device and method for food detectionDownload PDFInfo
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- CN112649424A CN112649424ACN202011467174.0ACN202011467174ACN112649424ACN 112649424 ACN112649424 ACN 112649424ACN 202011467174 ACN202011467174 ACN 202011467174ACN 112649424 ACN112649424 ACN 112649424A
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- 238000001514detection methodMethods0.000titleclaimsabstractdescription127
- 235000013305foodNutrition0.000titleclaimsabstractdescription43
- 239000000575pesticideSubstances0.000titleclaimsabstractdescription38
- 238000000034methodMethods0.000titleclaimsabstractdescription7
- XLYOFNOQVPJJNP-UHFFFAOYSA-NwaterSubstancesOXLYOFNOQVPJJNP-UHFFFAOYSA-N0.000claimsabstractdescription60
- 238000004140cleaningMethods0.000claimsabstractdescription56
- 239000003814drugSubstances0.000claimsabstractdescription4
- 238000003756stirringMethods0.000claimsdescription17
- 239000003153chemical reaction reagentSubstances0.000claimsdescription10
- 239000007788liquidSubstances0.000claimsdescription7
- 239000011259mixed solutionSubstances0.000claimsdescription5
- 239000003086colorantSubstances0.000claimsdescription3
- 238000007599dischargingMethods0.000claimsdescription3
- 239000011521glassSubstances0.000claimsdescription3
- 238000010438heat treatmentMethods0.000claimsdescription3
- 230000002452interceptive effectEffects0.000claimsdescription2
- 239000000447pesticide residueSubstances0.000abstractdescription7
- 238000010926purgeMethods0.000abstract3
- 235000012055fruits and vegetablesNutrition0.000description4
- 241000238631HexapodaSpecies0.000description2
- 241000607479Yersinia pestisSpecies0.000description2
- 201000010099diseaseDiseases0.000description2
- 208000037265diseases, disorders, signs and symptomsDiseases0.000description2
- 238000004817gas chromatographyMethods0.000description2
- 239000000463materialSubstances0.000description2
- 239000000243solutionSubstances0.000description2
- 238000009825accumulationMethods0.000description1
- 231100000570acute poisoningToxicity0.000description1
- 230000009286beneficial effectEffects0.000description1
- 235000013399edible fruitsNutrition0.000description1
- 230000007613environmental effectEffects0.000description1
- 238000004811liquid chromatographyMethods0.000description1
- 238000004949mass spectrometryMethods0.000description1
- 238000012986modificationMethods0.000description1
- 230000004048modificationEffects0.000description1
- 230000002093peripheral effectEffects0.000description1
- 239000000126substanceSubstances0.000description1
- 230000001988toxicityEffects0.000description1
- 231100000419toxicityToxicity0.000description1
- 235000013311vegetablesNutrition0.000description1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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Abstract
Description
Technical Field
The invention belongs to the technical field, and particularly relates to a pesticide detection device and method for food detection.
Background
Food safety has become a focus of attention of people in the year, and pollution-free food is more and more favored by people along with the enhancement of health consciousness of people. In order to make fruits and vegetables attractive, many farmers who plant fruits and vegetables use pesticides to prevent insect pests or make fruits and vegetables more attractive, the pesticide residue in agricultural products in China is serious due to the fact that the pesticides are applied excessively, and the pesticide residue exceeding events occur frequently, so that the health of people is seriously harmed. Food safety is a major problem related to the national civilization, and especially pesticide residues in agricultural products have attracted extensive attention of the whole society. For vegetables and fruits with short growing period, the phenomenon of pesticide residue exceeding standard is gradually aggravated due to more plant diseases and insect pests and excessive use of pesticides, and a large amount of pesticide residues can generate direct toxicity to human bodies to cause acute poisoning or cause accumulation and enrichment of pesticides in the human bodies, so that various diseases are caused, and the human health is directly influenced.
The existing detection method for pesticide residue of crops mainly adopts methods of gas chromatography, liquid chromatography, gas chromatography, mass spectrometry and the like, is mainly used in laboratories, has long test period, is not fast enough, is greatly influenced by environmental factors, particularly has poor temperature, accuracy and repeatability, expensive instruments, complex structure and large volume, is difficult to realize field detection, is effective only for a few pesticides, needs skilled professional technicians, has small application range and cannot realize real-time continuous detection.
Disclosure of Invention
The invention aims to provide a pesticide detection device and method for food detection.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a pesticide detection device for food detection, which comprises a detection box, wherein the bottom of the detection box is fixedly connected with a supporting leg, and a cleaning chamber and a detection chamber are sequentially arranged in the detection box from top to bottom; the food cleaning device is characterized in that a feeding hole is formed in the upper end of the cleaning chamber, a first motor is fixedly connected above the cleaning chamber, a rotating shaft is fixedly connected to the first motor, the lower end of the rotating shaft extends into the cleaning chamber, a cleaning barrel used for placing food is fixedly connected to the lower end of the rotating shaft, and the cleaning barrel is of a barrel-shaped structure with an opening in the upper end and a closed lower end; a water passage is arranged between the cleaning chamber and the detection chamber, an electromagnetic valve is connected to the water passage, a chemical feeding port is arranged on the side face of the upper end of the detection chamber, a water outlet is arranged at the bottom of the detection chamber, a valve is connected to the water outlet, a color sensor is connected to the detection chamber, a second motor is fixedly connected to the bottom of the cleaning chamber, a stirring shaft is fixedly connected to the second motor, one end of the stirring shaft extends into the detection chamber, and stirring blades are fixedly connected to the stirring shaft; the detection box is connected with a central processing unit and a display, the central processing unit is electrically connected with the display, and the first motor, the second motor, the electromagnetic valve and the color sensor are electrically connected with the central processing unit.
Furthermore, an electric heater and a temperature sensor are arranged in the cleaning chamber, and the electric heater and the temperature sensor are electrically connected with the central processing unit.
Furthermore, a connecting sleeve fixedly connected with the rotating shaft is fixedly connected in the cleaning cylinder.
Further, a flow meter is connected to the water passage.
Furthermore, the side of the detection chamber is provided with an observation window, and the observation window is fixedly connected with transparent glass.
Furthermore, a plurality of water through holes are formed in the surface of the cleaning barrel.
Further, the central processing unit is internally stored with a database, and the database comprises pesticide concentration grades corresponding to different shades and colors.
A detection method of a pesticide detection device for food detection comprises the following steps:
step one, adding quantitative clean water into a cleaning chamber, ensuring that the water quantity exceeds the height of a cleaning barrel, and starting an electric heater to heat the water.
And step two, putting the food to be detected into the cleaning barrel through the feed inlet, then starting the first motor, and driving the cleaning barrel to rotate by the first motor to clean the surface of the food.
Step three, after the food is cleaned, closing the first motor, opening the electromagnetic valve, enabling the water containing the residual pesticide to flow into the detection chamber from the water passage, and recording the water flowing through by the flowmeter and displaying the water on the display;
and step four, adding the prepared detection reagent into the detection chamber through a reagent adding port, and starting a second motor to stir the mixed solution in the detection chamber, so as to accelerate the reaction of the detection reagent and the pesticide in the water.
Step five, the color sensor identifies the color of the mixed solution after reaction, converts the color signal into an electric signal and sends the electric signal to the central processing unit, the central processing unit compares the received electric signal with the data in the database and displays the comparison result through the display,
and step six, after the detection is finished, discharging the mixed liquid in the detection chamber through a water outlet, and taking out the food in the cleaning barrel from the feed inlet.
Furthermore, the detection device needs to be cleaned by clear water before each use, so that the interference of the residual mixed liquid in the detection chamber on the detection result is prevented.
Further, the heating temperature of the clean water in the first step is controlled to be 50-60 ℃.
The invention has the following beneficial effects:
according to the invention, the cleaning chamber and the detection chamber are arranged in the detection box, so that the food firstly washes away the residual pesticide through the cleaning chamber, then the pesticide in the water is detected through the detection chamber, and the pesticide is displayed through the display, thereby solving the problems of complex operation and difficult detection of the existing food pesticide detection.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-a detection box, 2-a cleaning chamber, 3-a detection chamber, 4-a feed inlet, 5-a first motor, 6-a rotating shaft, 7-a cleaning barrel, 8-a water through hole, 9-a connecting sleeve, 10-an electric heater, 11-a display, 12-a central processing unit, 13-a temperature sensor, 14-a water through channel, 15-an electromagnetic valve, 16-a flow meter, 17-a color sensor, 18-a medicine adding port, 19-an observation window, 20-a second motor, 21-a stirring blade, 22-a water outlet, 23-a valve, 24-a stirring shaft and 25-a supporting leg.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "side," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship merely to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered as limiting the present invention.
Referring to fig. 1, the invention relates to a pesticide detection device for food detection, which comprises a detection box 1, wherein the bottom of the detection box 1 is fixedly connected with a supportingleg 25, and acleaning chamber 2 and adetection chamber 3 are sequentially arranged in the detection box 1 from top to bottom; the upper end of thecleaning chamber 2 is provided with a feeding hole 4, afirst motor 5 is fixedly connected above thecleaning chamber 2, a rotatingshaft 6 is fixedly connected onto thefirst motor 5, the lower end of therotating shaft 6 extends into thecleaning chamber 2, the lower end of the rotatingshaft 6 is fixedly connected with acleaning barrel 7 for placing food (mainly comprising fruits and vegetables), and thecleaning barrel 7 is of a cylindrical structure with an opening at the upper end and a closed lower end; awater passage 14 is arranged between thecleaning chamber 2 and thedetection chamber 3, thewater passage 14 is connected with anelectromagnetic valve 15, the side surface of the upper end of thedetection chamber 3 is provided with adosing port 18, a detection reagent is added into thedetection chamber 3 through thedosing port 18, the bottom of thedetection chamber 3 is provided with awater outlet 22, thewater outlet 22 is connected with avalve 23, thedetection chamber 3 is connected with acolor sensor 17, the bottom of thecleaning chamber 2 is fixedly connected with asecond motor 20, thesecond motor 20 is fixedly connected with astirring shaft 24, one end of thestirring shaft 24 extends into thedetection chamber 3, and thestirring shaft 24 is fixedly connected with astirring blade 21; thedetection box 12 is connected with acentral processing unit 12 and adisplay 11, thecentral processing unit 12 is electrically connected with thedisplay 11, and thefirst motor 5, thesecond motor 20, theelectromagnetic valve 15 and thecolor sensor 17 are electrically connected with thecentral processing unit 12.
Preferably, in order to increase the cleaning rate of the food, anelectric heater 10 and atemperature sensor 13 are arranged in thecleaning chamber 2, theelectric heater 10 heats water, and both theelectric heater 10 and thetemperature sensor 13 are electrically connected with thecentral processing unit 12.
Preferably, a connectingsleeve 9 fixedly connected with the rotatingshaft 6 is fixedly connected in thecleaning cylinder 7.
Preferably, aflow meter 16 is connected to thewater passage 14 to record the amount of water flowing therethrough, so as to dispose a detection reagent.
Preferably, the side of thedetection chamber 3 is provided with anobservation window 19, and a transparent glass is fixedly connected to theobservation window 19.
Preferably, the surface of thecleaning cylinder 7 is provided with a plurality of water throughholes 8.
Preferably, thecentral processing unit 12 stores a database, and the database includes pesticide concentration levels corresponding to different shades and colors.
A detection method of a pesticide detection device for food detection comprises the following steps:
step one, adding quantitative clean water into thecleaning chamber 2, ensuring that the water quantity exceeds the height of thecleaning barrel 7, starting theelectric heater 10 to heat the water, keeping the water quantity added in each time of use consistent, and adding the water from the feed port 4.
And step two, putting the food to be detected into thecleaning barrel 7 through the feed inlet 4, then starting thefirst motor 5, and driving thecleaning barrel 7 to rotate by thefirst motor 5 to clean the surface of the food.
Step three, after the food is cleaned, thefirst motor 5 is closed, theelectromagnetic valve 15 is opened, water containing residual pesticide flows into thedetection chamber 3 from thewater passage 14, and theflow meter 16 records the water flowing through and displays the water on thedisplay 11;
step four, adding the prepared detection reagent into thedetection chamber 3 through themedicine adding port 18, starting thesecond motor 20 to stir the mixed liquid in thedetection chamber 3, and accelerating the reaction of the detection reagent and the pesticide in the water.
Step five, thecolor sensor 17 identifies the color of the mixed solution after reaction, converts the color signal into an electric signal and sends the electric signal to thecentral processing unit 12, thecentral processing unit 12 compares the received electric signal with the data in the database and displays the comparison result through thedisplay 11,
and step six, after the detection is finished, discharging the mixed liquid in thedetection chamber 3 through thewater outlet 22, and taking out the food in thecleaning barrel 7 from the feed inlet 4.
Preferably, the detection device needs to be cleaned by clean water before each use, so as to prevent the mixed liquid remaining in thedetection chamber 3 from interfering with the detection result.
Preferably, the heating temperature of the clean water in the first step is controlled to be 50-60 ℃.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A pesticide detection device for food detection, includes detection case (1), its characterized in that: the bottom of the detection box (1) is fixedly connected with a supporting leg (25), and a cleaning chamber (2) and a detection chamber (3) are sequentially arranged in the detection box (1) from top to bottom;
a feeding hole (4) is formed in the upper end of the cleaning chamber (2), a first motor (5) is fixedly connected above the cleaning chamber (2), a rotating shaft (6) is fixedly connected to the first motor (5), the lower end of the rotating shaft (6) extends into the cleaning chamber (2), a cleaning barrel (7) used for placing food is fixedly connected to the lower end of the rotating shaft (6), and the cleaning barrel (7) is of a cylindrical structure with an opening in the upper end and a closed lower end;
a water channel (14) is arranged between the cleaning chamber (2) and the detection chamber (3), the water channel (14) is connected with an electromagnetic valve (15), a medicine adding port (18) is arranged on the side surface of the upper end of the detection chamber (3), a water outlet (22) is arranged at the bottom of the detection chamber (3), a valve (23) is connected onto the water outlet (22), the detection chamber (3) is connected with a color sensor (17), the bottom of the cleaning chamber (2) is fixedly connected with a second motor (20), a stirring shaft (24) is fixedly connected onto the second motor (20), one end of the stirring shaft (24) extends into the detection chamber (3), and a stirring blade (21) is fixedly connected onto the stirring shaft (24);
the detection box (12) is connected with a central processing unit (12) and a display (11), the central processing unit (12) is electrically connected with the display (11), and the first motor (5), the second motor (20), the electromagnetic valve (15) and the color sensor (17) are electrically connected with the central processing unit (12).
2. The pesticide detection device for food detection as claimed in claim 1, wherein an electric heater (10) and a temperature sensor (13) are arranged in the cleaning chamber (2), and both the electric heater (10) and the temperature sensor (13) are electrically connected with the central processing unit (12).
3. The pesticide detecting device for food detection as claimed in claim 1, wherein a connecting sleeve (9) fixedly connected with the rotating shaft (6) is fixedly connected in the cleaning cylinder (7).
4. The pesticide detection device for food detection as claimed in claim 1, wherein a flow meter (16) is connected to the water passage (14).
5. The pesticide detection device for food detection according to claim 1, wherein a viewing window (19) is arranged on the side surface of the detection chamber (3), and a transparent glass is fixedly connected to the viewing window (19).
6. The pesticide detection device for food detection as claimed in claim 1, wherein the surface of the cleaning drum (7) is provided with a plurality of water through holes (8).
7. The pesticide detection device for food detection as claimed in claim 1, wherein the central processing unit (12) stores a database, and the database comprises pesticide concentration levels corresponding to different shades and colors.
8. The detection method of the pesticide detection device for food detection is characterized by comprising the following steps of:
step one, adding quantitative clean water into a cleaning chamber, ensuring that the water quantity exceeds the height of a cleaning barrel, and starting an electric heater to heat the water.
And step two, putting the food to be detected into the cleaning barrel through the feed inlet, then starting the first motor, and driving the cleaning barrel to rotate by the first motor to clean the surface of the food.
Step three, after the food is cleaned, closing the first motor, opening the electromagnetic valve, enabling the water containing the residual pesticide to flow into the detection chamber from the water passage, and recording the water flowing through by the flowmeter and displaying the water on the display;
and step four, adding the prepared detection reagent into the detection chamber through a reagent adding port, and starting a second motor to stir the mixed solution in the detection chamber, so as to accelerate the reaction of the detection reagent and the pesticide in the water.
Step five, the color sensor identifies the color of the mixed solution after reaction, converts the color signal into an electric signal and sends the electric signal to the central processing unit, the central processing unit compares the received electric signal with the data in the database and displays the comparison result through the display,
and step six, after the detection is finished, discharging the mixed liquid in the detection chamber through a water outlet, and taking out the food in the cleaning barrel from the feed inlet.
9. The method as claimed in claim 8, wherein the detection chamber is cleaned with clean water before each use of the detection device, so as to prevent the mixed liquid remaining in the detection chamber from interfering with the detection result.
10. The detection method of the pesticide detection device for food detection as claimed in claim 8, wherein in the first step, the heating temperature of the clean water is controlled to be 50-60 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011467174.0ACN112649424A (en) | 2020-12-14 | 2020-12-14 | Pesticide detection device and method for food detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011467174.0ACN112649424A (en) | 2020-12-14 | 2020-12-14 | Pesticide detection device and method for food detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115436359A (en)* | 2022-11-09 | 2022-12-06 | 鹤岗萃元科技产业发展有限公司 | Safety detection instrument for pesticide residue in perilla seeds |
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