CN110864952A - A sample extraction element for fruit vegetables pesticide residue detects - Google Patents
A sample extraction element for fruit vegetables pesticide residue detects Download PDFInfo
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- CN110864952A CN110864952A CN201911269102.2A CN201911269102A CN110864952A CN 110864952 A CN110864952 A CN 110864952A CN 201911269102 A CN201911269102 A CN 201911269102A CN 110864952 A CN110864952 A CN 110864952A
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- 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
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- 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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- 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
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Abstract
The invention relates to the field of auxiliary tools for detecting agricultural products, in particular to a sample extraction device for detecting pesticide residues on fruits and vegetables, which comprises a bracket, a crushing mechanism, a spiral feeding mechanism, a conveying mechanism and a vibrating mechanism, wherein the crushing mechanism is arranged at the upper end of the middle part of the bracket, the spiral feeding mechanism is arranged at the right lower end of the crushing mechanism, the conveying mechanism is arranged at the upper end of the bracket, the vibrating mechanism is arranged at the lower end of the bracket, the vibrating mechanism comprises a triangular base, a servo motor, a first gear, a second gear and a fixing component, the triangular base is arranged at the lower end of the bracket, the servo motor is arranged below the triangular base, the second gear is meshed with the first gear, the fixing component is arranged at the right upper end of the second gear, the sample extraction device for detecting the pesticide residues on the fruits and vegetables can realize the integrated operation of crushing and mixing of the fruits and vegetables, the extraction efficiency of sample has been improved, and the device simple operation, reliable simultaneously accords with the demand in market.
Description
Technical Field
The invention relates to the field of auxiliary tools for detecting agricultural products, in particular to a sample extraction device for detecting pesticide residues on fruits and vegetables.
Background
With the continuous progress of the cultivation technology, the growth period of vegetables is shorter and shorter, and with the aggravation of environmental pollution, the plant diseases and insect pests of the vegetables are heavier and heavier, most of the vegetables can be matured and sold on the market after being continuously put with medicines for many times, and the like also exist in fruits.
With the continuous improvement of living standard, people pursue food safety and nutritional value more and more, and agricultural products are used as raw materials of most foods and sources of main nutrient substances taken in by people, so that detection of the agricultural products is particularly important, and meanwhile, the agricultural products are required to be crushed, extracted, fully mixed and subjected to sampling detection in order to detect pesticide residues of fruits and vegetables.
The sample extraction is realized through artificial operation in the prior art, and the sample extraction device has great limitation, also puts forward higher requirement to the operator, and the amount of labour is great, and the step is comparatively loaded down with trivial details, therefore, we need to design a sample extraction device for fruit vegetables pesticide residue detects urgently.
Disclosure of Invention
The invention aims to solve the technical problem of providing a sample extraction device for detecting pesticide residues on fruits and vegetables, which can realize integrated operation of crushing and mixing fruits and vegetables, improves the extraction efficiency of samples, and is convenient and reliable to operate.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a sample extraction element for fruit vegetables pesticide residue detects, which comprises a bracket, crushing mechanism, spiral feeding mechanism, conveying mechanism and vibration mechanism, crushing mechanism is fixed to be set up the upper end at support middle part, spiral feeding mechanism is fixed to be set up under crushing mechanism, conveying mechanism is fixed to be set up the upper end at the support, and conveying mechanism is fixed to be set up the side at crushing mechanism, vibration mechanism is fixed to be set up the lower extreme at the support, and vibration mechanism is fixed to be set up in the below of conveying mechanism, vibration mechanism includes the triangle base, servo motor, first gear, second gear and fixed subassembly, the triangle base is fixed to be set up the lower extreme at the support, servo motor is fixed to be set up in the below of triangle base, and servo motor's output shaft passes the center of triangle base and first gear fixed connection vertically upwards, the second gear is connected with first gear meshing, the fixed component is fixedly arranged at the right upper end of the second gear.
As an optimal scheme for a sample extraction element that is used for fruit vegetables pesticide residue to detect, fixed subassembly includes the fixed station, four groups remove fixture block and two solid fixed rings, the fixed setting of fixed station is in the second gear directly the upper end, the ninety degree symmetry in two liang intervals of four groups removal fixture block sets up on the fixed station, the difference of a terminal surface of four groups removal fixture block is provided with two spacing posts, eight spacing posts pass the riser that the fixed station upper end set up respectively, and the cover is equipped with pressure spring respectively on eight spacing posts, the fixed station is served and is provided with two montants, two solid fixed ring's one end is rotated the upper end that sets up at two dead levers respectively, two solid fixed ring's the other end passes through bolt and nut fixed connection.
As an optimal scheme of the sample extraction device for detecting the pesticide residue on the fruits and vegetables, a circular groove and a triangular groove are formed in the triangular base, the circular groove is formed in the triangular groove and communicated with the triangular groove, and the second gear is movably arranged in the triangular groove and the circular groove through two fulcrums.
As a preferred scheme of a sample extraction element for fruit vegetables pesticide residue detects, the last rotatable gag lever post that is used for restricting the second gear trend that is provided with of triangle base to the gag lever post sets up to narrow back wide form.
As an optimal scheme for a sample extraction element for fruit vegetables pesticide residue detects, crushing mechanism includes broken case and two sets of broken wheels, the lower extreme of broken case sets up to become to taper hopper-shaped, the fixed upper end that sets up the support middle part of broken case, two sets of broken wheels rotate the inside that sets up at broken case, the axle of two sets of broken wheels all passes broken case and connects through two third gear drive, and the epaxial first drive disc that is provided with of a set of broken wheel, the fixed side that sets up at the third gear of first drive disc, first drive disc passes through the belt and is connected with spiral feeding mechanism transmission.
As an optimal scheme for a sample extraction element for fruit vegetables pesticide residue detects, spiral feeding mechanism includes first pipeline, helical blade and direct current motor, first pipeline is the L form, first pipeline is fixed to be set up under broken case, and first pipeline and broken case intercommunication, direct current motor is fixed to be set up the side at first pipeline, and direct current motor's output shaft passes through shaft coupling and helical blade fixed connection, helical blade passes through the fixed inside that sets up at first pipeline of bearing frame, first drive disk passes through the belt and is connected with the second drive disk transmission that sets up on the helical blade.
As an optimal scheme for a sample extraction element for fruit vegetables pesticide residue detects, conveying mechanism includes stock solution bucket and second pipeline, and the stock solution bucket passes through the fixed upper end that sets up at the support of backup pad, and the second pipeline setting sets up the bottom at the stock solution bucket to the second pipeline communicates with the bottom of stock solution bucket, is provided with the control valve that is used for flow control on the second pipeline.
Compared with the prior art, the invention has the beneficial effects that: the sample extraction device for detecting the pesticide residue on the fruits and vegetables can realize integrated operation of crushing and mixing the fruits and vegetables, improves the extraction efficiency of the samples, is convenient and reliable to operate, and meets the market requirements.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic perspective view of the vibration mechanism of the present invention;
FIG. 4 is an exploded perspective view of the vibration mechanism of the present invention;
FIG. 5 is a perspective view of the fixing assembly of the present invention;
FIG. 6 is an exploded perspective view of the fastening assembly of the present invention;
fig. 7 is a schematic perspective view of the crushing mechanism of the present invention;
FIG. 8 is a schematic perspective view of the screw feeding mechanism of the present invention;
FIG. 9 is an exploded perspective view of the screw feed mechanism of the present invention;
fig. 10 is a schematic perspective view of the conveying mechanism of the present invention.
The reference numbers in the figures are: a bracket 1; a crushing mechanism 2; a screw feeding mechanism 3; a conveying mechanism 4; a vibration mechanism 5; a triangular base 6; a servo motor 7; a first gear 8; a second gear 9; a fixed component 10; a fixed table 11; moving the fixture block 12; a fixed ring 13; a stopper post 14; a vertical plate 15; a hold-down spring 16; a vertical rod 17; a circular groove 18; a triangular groove 19; a stopper rod 21; a crushing box 22; a crushing wheel 23; a third gear 24; a first drive disk 25; a first conduit 27; a helical blade 28; a direct current motor 29; a bearing housing 30; a second transmission disc 31; a liquid storage barrel 32; a second conduit 33; a control valve 34; a conical flask 35.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 10, a sample extraction device for detecting pesticide residue on fruits and vegetables comprises a support 1, a crushing mechanism 2, a spiral feeding mechanism 3, a conveying mechanism 4 and a vibrating mechanism 5, wherein the crushing mechanism 2 is fixedly arranged at the upper end of the middle part of the support 1, the spiral feeding mechanism 3 is fixedly arranged at the right lower end of the crushing mechanism 2, the conveying mechanism 4 is fixedly arranged at the upper end of the support 1, the conveying mechanism 4 is fixedly arranged at the side of the crushing mechanism 2, the vibrating mechanism 5 is fixedly arranged at the lower end of the support 1, the vibrating mechanism 5 is fixedly arranged below the conveying mechanism 4, the vibrating mechanism 5 comprises a triangular base 6, a servo motor 7, a first gear 8, a second gear 9 and a fixing component 10, the triangular base 6 is fixedly arranged at the lower end of the support 1, the servo motor 7 is fixedly arranged below the triangular base 6, and an output shaft of the servo motor 7 vertically upwards passes through the center of the triangular base 6 and is fixedly connected with the first gear 8, the second gear 9 is meshed with the first gear 8, and the fixing component 10 is fixedly arranged at the right upper end of the second gear 9. Firstly, before fruit and vegetable products enter the market, pesticide residue detection is carried out through relevant departments, a detector extracts samples from fruits and vegetables, the fruit and vegetable samples are brought back, pesticide residue detection of the fruits and vegetables is carried out by adopting a relevant technology, when pesticide detection of the fruits and vegetables is carried out, required detection reagents are firstly poured into a conveying mechanism 4, then the device is started, the detector conveys the fruit and vegetable samples into a crushing mechanism 2 for crushing, the crushed fruits and vegetables are conveyed into a conical flask 35 through a spiral feeding mechanism 3, the conical flask 35 is fixedly arranged on a fixed component 10 on a vibrating mechanism 5, then the conveying mechanism 4 conveys the detection reagents into the conical flask 35, then, the conveying mechanism 4, the crushing mechanism 2 and the spiral conveying mechanism 4 stop operating, the vibrating mechanism 5 starts to operate, a servo motor 7 drives a first gear 8 to rotate, first gear 8 drives second gear 9 and rotates, and second gear 9 drives fixed subassembly 10 and rotates, and fixed subassembly 10 drives erlenmeyer flask 35 and rotates to this reaches and carries out abundant the mixture of rocking in the erlenmeyer flask 35, reaches measurement personnel's requirement after, and 5 stop work of vibration mechanism take off erlenmeyer flask 35 from fixed subassembly 10 can, the completion is to the work of drawing of fruit vegetables pesticide residue sample.
Fixed subassembly 10 includes fixed station 11, four groups remove fixture block 12 and two solid fixed rings 13, fixed station 11 is fixed to be set up directly over the second gear 9, the ninety degree symmetry in two liang intervals of four groups removal fixture block 12 sets up on fixed station 11, the terminal surface of four groups removal fixture block 12 is provided with two spacing posts 14 respectively, eight spacing posts 14 pass riser 15 that fixed station 11 upper end set up respectively, and the cover is equipped with pressure spring 16 respectively on eight spacing posts 14, fixed station 11 serves and is provided with two montants 17, the one end of two solid fixed rings 13 rotates the upper end that sets up at two dead levers respectively, the other end of two solid fixed rings 13 passes through bolt and nut fixed connection. Firstly, before the detection personnel take a sample, the prepared conical flask 35 is placed on the fixed table 11, the four groups of movable clamping blocks 12 firmly fix the bottom of the conical flask 35, then, the two fixed rings 13 are rotated, the two fixed rings 13 fix the upper end of the conical flask 35, the detection personnel fix the two fixed rings 13 by using bolts and nuts, so that the conical flask 35 is firmly fixed on the fixed table 11, the matching of the limiting column 14, the vertical plate 15 and the movable clamping blocks 12 is realized, the movable clamping blocks 12 are movably arranged on the vertical plate 15, and the arrangement of the compression spring 16 provides the resetting and abutting effects.
A circular groove 18 and a triangular groove 19 are formed in the triangular base 6, the circular groove 18 is formed in the triangular groove 19, the circular groove 18 is communicated with the triangular groove 19, and the second gear 9 is movably arranged in the triangular groove 19 and the circular groove 18 through two supporting points. Firstly, the second gear 9 is a strip-shaped gear, two fulcrums are fixed at two ends of the bottom of the second gear 9, and the circular groove 18 and the triangular groove 19 are arranged, so that the two fulcrums on the second gear 9 can move in the circular groove 18 and the triangular groove 19.
The triangular base 6 is rotatably provided with three limiting rods 21 for limiting the trend of the second gear 9, and the limiting rods 21 are narrow in front and wide in back. Firstly, when the servo motor 7 runs, the first gear 8 drives the second gear 9 to rotate, the fulcrum at the bottom end of the second gear 9 also moves, when the pivot of the front end moves to one corner of the triangular groove 19, the narrower end of the limiting rod 21 blocks the triangular groove 19, the pivot of the rear end enters the circular groove 18, then, the fulcrum of the rear end in the circular groove 18 exceeds the fulcrum of the front end, enters the triangular groove 19 first, continues to rotate, and the fulcrum of the rear end reaches one corner of the triangular groove 19 first, then the pivot of the front end enters the circular groove 18, finally, the pivot of the front end exceeds the pivot of the rear end and enters the triangular groove 19 to reciprocate, so that the second gear 9 drives the conical flask 35 to make triangular circular motion, thereby achieving the purpose of fully stirring and mixing the mixture in the conical flask 35.
Conveying mechanism 4 includes stock solution bucket 32 and second pipeline 33, and stock solution bucket 32 passes through the fixed upper end that sets up at support 1 of backup pad, and second pipeline 33 sets up the bottom at stock solution bucket 32 to second pipeline 33 and the bottom intercommunication of stock solution bucket 32 are provided with the control valve 34 that is used for the control flow on the second pipeline 33. First, the liquid storage tank 32 is provided to store a reagent for detecting pesticide residues on fruits and vegetables, and the control valve 34 is provided to control the input amount of the reagent to ensure smooth detection tasks.
The working principle is as follows: firstly, when a tester detects fruits and vegetables, the tester pours a required detection reagent into the conveying mechanism 4, then starts the device, the tester conveys fruit and vegetable samples into the crushing mechanism 2 for crushing, the crushed fruits and vegetables are conveyed into the conical flask 35 through the spiral feeding mechanism 3, then the conveying mechanism 4 conveys the detection reagent into the conical flask 35, then the conveying mechanism 4, the crushing mechanism 2 and the spiral conveying mechanism 4 stop operating, the vibrating mechanism 5 starts operating, the servo motor 7 drives the first gear 8 to rotate, the first gear 8 drives the second gear 9 to rotate, the second gear 9 drives the fixing component 10 to rotate, the fixing component 10 drives the conical flask 35 to rotate, so that the mixture in the conical flask 35 is fully shaken and mixed, and after the requirements are met, the tester stops the operation of the vibrating mechanism 5, and (3) removing the conical bottle 35 from the fixing component 10 to finish the extraction work of the fruit and vegetable pesticide residue sample.
Claims (7)
1. A sample extraction device for detecting pesticide residues on fruits and vegetables is characterized by comprising a support (1), a crushing mechanism (2), a spiral feeding mechanism (3), a conveying mechanism (4) and a vibrating mechanism (5), wherein the crushing mechanism (2) is fixedly arranged at the upper end of the middle part of the support (1), the spiral feeding mechanism (3) is fixedly arranged at the lower end of the right side of the crushing mechanism (2), the conveying mechanism (4) is fixedly arranged at the upper end of the support (1), the conveying mechanism (4) is fixedly arranged at the side of the crushing mechanism (2), the vibrating mechanism (5) is fixedly arranged at the lower end of the support (1), the vibrating mechanism (5) is fixedly arranged below the conveying mechanism (4), and the vibrating mechanism (5) comprises a triangular base (6), a servo motor (7), a first gear (8), a second gear (9) and a fixing component (10), triangle base (6) are fixed to be set up at the lower extreme of support (1), and servo motor (7) are fixed to be set up in the below of triangle base (6) to the output shaft of servo motor (7) is vertical to pass the center and first gear (8) fixed connection of triangle base (6) up, and second gear (9) are connected with first gear (8) meshing, and fixed subassembly (10) are fixed to be set up in the positive upper end of second gear (9).
2. The sample extraction device for fruit and vegetable pesticide residue detection according to claim 1, it is characterized in that the fixing component (10) comprises a fixing table (11), four groups of movable clamping blocks (12) and two fixing rings (13), the fixing table (11) is fixedly arranged at the right upper end of the second gear (9), the four groups of movable clamping blocks (12) are symmetrically arranged on the fixing table (11) at intervals of ninety degrees in pairs, two limiting columns (14) are respectively arranged on one end face of each of the four groups of movable clamping blocks (12), the eight limiting columns (14) respectively penetrate through vertical plates (15) arranged at the upper end of the fixing table (11), and the eight limiting columns (14) are respectively sleeved with a compression spring (16), one end of the fixed platform (11) is provided with two vertical rods (17), one ends of the two fixed rings (13) are respectively rotatably arranged at the upper ends of the two fixed rods, and the other ends of the two fixed rings (13) are fixedly connected through bolts and nuts.
3. The sample extraction device for detecting the pesticide residue on the fruits and vegetables as claimed in claim 1, wherein a circular groove (18) and a triangular groove (19) are formed in the triangular base (6), the circular groove (18) is formed in the triangular groove (19), the circular groove (18) is communicated with the triangular groove (19), and the second gear (9) is movably arranged in the triangular groove (19) and the circular groove (18) through two supporting points.
4. The sample extraction device for fruit and vegetable pesticide residue detection according to claim 3, wherein three limiting rods (21) for limiting the trend of the second gear (9) are rotatably arranged on the triangular base (6), and the limiting rods (21) are arranged in a shape that the front part is narrow and the back part is wide.
5. The sample extraction device for fruit and vegetable pesticide residue detection according to claim 1, wherein the crushing mechanism (2) comprises a crushing box (22) and two groups of crushing wheels (23), the lower end of the crushing box (22) is arranged in a conical funnel shape, the crushing box (22) is fixedly arranged at the upper end of the middle part of the bracket (1), the two groups of crushing wheels (23) are rotatably arranged inside the crushing box (22), the shafts of the two groups of crushing wheels (23) penetrate through the crushing box (22) and are in transmission connection with each other through two third gears (24), a first transmission disc (25) is arranged on the shaft of one group of crushing wheels (23), the first transmission disc (25) is fixedly arranged beside the third gears (24), and the first transmission disc (25) is in transmission connection with the spiral feeding mechanism (3) through a belt.
6. The sample extraction device for fruit and vegetable pesticide residue detection according to claim 5, wherein the spiral feeding mechanism (3) comprises a first pipeline (27), a spiral blade (28) and a direct current motor (29), the first pipeline (27) is L-shaped, the first pipeline (27) is fixedly arranged at the right lower end of the crushing box (22), the first pipeline (27) is communicated with the crushing box (22), the direct current motor (29) is fixedly arranged at the side of the first pipeline (27), the output shaft of the direct current motor (29) is fixedly connected with the spiral blade (28) through a coupler, the spiral blade (28) is fixedly arranged inside the first pipeline (27) through a bearing seat (30), and the first driving disc (25) is in transmission connection with a second driving disc (31) arranged on the spiral blade (28) through a belt.
7. The sample extraction device for fruit and vegetable pesticide residue detection according to claim 1, wherein the conveying mechanism (4) comprises a liquid storage barrel (32) and a second pipeline (33), the liquid storage barrel (32) is fixedly arranged at the upper end of the support frame (1) through a support plate, the second pipeline (33) is arranged at the bottom end of the liquid storage barrel (32), the second pipeline (33) is communicated with the bottom end of the liquid storage barrel (32), and a control valve (34) for controlling the flow rate is arranged on the second pipeline (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911269102.2A CN110864952A (en) | 2019-12-11 | 2019-12-11 | A sample extraction element for fruit vegetables pesticide residue detects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911269102.2A CN110864952A (en) | 2019-12-11 | 2019-12-11 | A sample extraction element for fruit vegetables pesticide residue detects |
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| Publication Number | Publication Date |
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| CN110864952A true CN110864952A (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911269102.2A Withdrawn CN110864952A (en) | 2019-12-11 | 2019-12-11 | A sample extraction element for fruit vegetables pesticide residue detects |
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| CN (1) | CN110864952A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098398A (en) * | 2020-09-16 | 2020-12-18 | 沙锐 | Fruit vegetables pesticide residue detection device |
| CN112924265A (en) * | 2021-01-28 | 2021-06-08 | 江西抚州新兴化工有限公司 | Pesticide extraction element is used in pesticide residue detection |
| CN113375992A (en) * | 2021-06-07 | 2021-09-10 | 青岛市农业科学研究院 | Multifunctional pesticide residue detection pretreatment device |
| CN116465714A (en) * | 2023-04-19 | 2023-07-21 | 山东省食品药品检验研究院 | Pesticide residue draws purifier in vegetables fruit |
-
2019
- 2019-12-11 CN CN201911269102.2A patent/CN110864952A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098398A (en) * | 2020-09-16 | 2020-12-18 | 沙锐 | Fruit vegetables pesticide residue detection device |
| CN112924265A (en) * | 2021-01-28 | 2021-06-08 | 江西抚州新兴化工有限公司 | Pesticide extraction element is used in pesticide residue detection |
| CN113375992A (en) * | 2021-06-07 | 2021-09-10 | 青岛市农业科学研究院 | Multifunctional pesticide residue detection pretreatment device |
| CN113375992B (en) * | 2021-06-07 | 2022-06-24 | 青岛市农业科学研究院 | Multifunctional pesticide residue detection pretreatment device |
| CN116465714A (en) * | 2023-04-19 | 2023-07-21 | 山东省食品药品检验研究院 | Pesticide residue draws purifier in vegetables fruit |
| CN116465714B (en) * | 2023-04-19 | 2023-11-28 | 山东省食品药品检验研究院 | Pesticide residue draws purifier in vegetables fruit |
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Application publication date: 20200306 |
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