CN115711951A - Pesticide residue detection instrument equipment in water quality sample - Google Patents
Pesticide residue detection instrument equipment in water quality sample Download PDFInfo
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- CN115711951A CN115711951A CN202211384691.0A CN202211384691A CN115711951A CN 115711951 A CN115711951 A CN 115711951A CN 202211384691 A CN202211384691 A CN 202211384691A CN 115711951 A CN115711951 A CN 115711951A
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- 238000001514 detection method Methods 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000000447 pesticide residue Substances 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 239000012295 chemical reaction liquid Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 22
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 210000002445 nipple Anatomy 0.000 claims description 6
- 230000003139 buffering effect Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 15
- 239000011259 mixed solution Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000007810 chemical reaction solvent Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
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- 239000000575 pesticide Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention discloses a water quality sample pesticide residue detection instrument, which comprises: the device comprises a detection machine table, wherein a carrying frame is fixed on one side of the upper end surface of the detection machine table, a placing disc is arranged on the carrying frame in a relatively rotating manner, and a plurality of inner notches are uniformly formed in the circumference of the placing disc and used for taking and placing sample bottles; a transmission frame is transversely fixed on the upper end face of the detection machine table, a driving seat is arranged on the transmission frame in a relatively sliding manner, and a liquid taking pipe is vertically and slidably arranged on the driving seat and used for correspondingly extracting water quality samples in the sample bottles; a mixed liquid reaction assembly is fixed on one side of the carrying frame on the detection machine table and can mix the extracted water quality sample into the reaction liquid; the upper end face of the detection machine table is also provided with a chromatograph.
Description
Technical Field
The invention belongs to the technical field of water quality detection equipment, and particularly relates to water quality sample pesticide residue detection instrument equipment.
Background
At present, pesticides are widely applied to countries in the world, make great contribution to agricultural development, but are also easy to generate residues in use, the current detection modes of pesticide residues are more, the most widespread mode is gas chromatography, the operation is simple, the analysis speed is high, the sensitivity is high, up to 70% of pesticide residues can be rapidly detected through the gas chromatography, however, in the traditional detection process, workers are required to extract and inject samples one by one, the working strength of batch water quality sample detection operation is high, and particularly, long-time standing is required in the mixing of sample liquid and reaction solvent to ensure that the sample liquid and the reaction solvent completely achieve a reaction fusion effect, and then the sample liquid can be tested, so that the detection period of a single sample is long, while in the prior art, a shaking device is poor in the fluidity of the solution in a reaction bottle, and still needs to carry out long-time standing reaction.
Therefore, the technical personnel in the field provide a water quality sample pesticide residue detection instrument and device to solve the problems in the background technology.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a water quality sample pesticide residue detection instrument device, comprising: the device comprises a detection machine table, wherein a carrying frame is fixed on one side of the upper end surface of the detection machine table, a placing disc is arranged on the carrying frame in a relatively rotating manner, and a plurality of inner notches are uniformly formed in the circumference of the placing disc and used for taking and placing sample bottles; a transmission frame is transversely fixed on the upper end face of the detection machine table, a driving seat is arranged on the transmission frame in a relatively sliding manner, and a liquid taking pipe is vertically and slidably arranged on the driving seat and used for correspondingly extracting water quality samples in the sample bottles; a mixed liquid reaction assembly is fixed on one side of the carrying frame on the detection machine table and can mix the extracted water quality sample into the reaction liquid; the upper end face of the detection machine table is also provided with a chromatograph.
Further, preferably, the liquid-mixed reaction module includes: the device comprises a fixed machine body, wherein a plurality of containing cavities are formed in the fixed machine body, reaction tubes are arranged in the containing cavities in a sliding mode, a flowing liquid mixing device is vertically arranged on one side of each containing cavity in the fixed machine body, the flowing liquid mixing device can extend into the reaction tubes in a sliding mode, and a defoaming exhaust device is further arranged in the fixed machine body.
Further, preferably, the fluid mixing device includes: the leading truck, it is vertical to fix in the fixed engine body, it is provided with the pedestal body to slide on the leading truck, the vertical external connection seat that is fixed with on the pedestal body, the lower terminal surface of external connection seat is provided with the circulation pipe support with the centre of a circle, the circulation pipe support can slide and stretch into to the reaction tube in, the inside below that holds the chamber is provided with top position spare, the cross section of top position spare is set up to semi-circular structure, just hold the intracavity and be provided with supporting spring, supporting spring with top position spare is connected, it is provided with a plurality of compression springs to arrange on the circumferential side wall of external connection seat, the below of external connection seat is through compression spring cup jointed the ring support body, the ring support body can lean on the contact along the counterbalance on the circumference of reaction tube in vertical displacement, just still adjust on the external connection seat and have the buffering ring, the buffering ring can be followed the vertical slip of reaction tube inner wall, the upper end of external connection seat still communicates there is the adapter tube.
Further, as preferred, the lower terminal surface of circulation pipe support is fixed with the head that flows, but the relative pivoted is provided with drainage page or leaf spare in the head that flows, install micro motor on the circulation pipe support, micro motor's output with drainage page or leaf spare is fixed mutually, the lower terminal surface middle part of flowing the head is equipped with the circulation passageway, just the symmetry is provided with the nipple on the circulation pipe support, the nipple with the head that flows is linked together, just be equipped with the mass flow storehouse on the circulation pipe support, the other end of nipple with the mass flow storehouse is linked together, be fixed with the upper drainage seat on the circulation pipe support, the internal periphery of upper drainage seat is provided with a plurality of passageways, each the passageway respectively with the mass flow storehouse is linked together.
Further, as preferred, the middle part of going up flowing back seat still vertically is provided with the inner tube, go up flowing back seat embedded be fixed with the circulation dish, the switching pipe with the one end of inner tube is linked together, the other end of inner tube with communicate with each other on the circulation dish, circumference has seted up a plurality ofly on the circulation seat with the corresponding branch liquid chamber of passageway, divide the equal slip of liquid intracavity and be provided with the ball valve, just it still is provided with the innerspring to divide the liquid intracavity, the one end of innerspring with the ball valve is connected.
Further, preferably, the solution developer is quantitatively transported in the transfer tube.
Further, preferably, the bubble removing and exhausting device includes: the side frame is circumferentially distributed in the containing cavity, a plurality of connecting springs are arranged between the side frame and the side wall of the containing cavity, a driving disc is arranged in the fixed machine body and can rotate relatively, a sleeve ring frame is arranged in the containing cavity, the sleeve ring frame is sleeved outside the reaction tube in a sliding mode, a supporting rod piece is connected to the driving disc in a rotating mode, and one end of the supporting rod piece is connected with the sleeve ring frame.
Further, as preferred, the bell and spigot joint ring frame is internally provided with a fixed ring collar which can rotate relatively, the fixed ring collar is symmetrically provided with a plurality of air cavities, each air cavity is internally provided with a plunger in a sliding manner, and one side of the plunger is connected with a supporting plate through a limiting spring.
Preferably, each air cavity is connected with a pulse pump through an airflow pipe, the displacement directions of the plungers on the opposite sides are synchronous, and the air cavities are provided with discharge holes.
Compared with the prior art, the invention has the beneficial effects that:
1. the main arrangement of the placing tray can place a plurality of sample bottles, so that a water quality sample is uniformly divided into one or a plurality of detection main bodies, the water quality sample is correspondingly extracted into the reaction tube through the liquid taking tube for reagent reaction, the flow liquid mixing device can actively drain the mixed solution in the reaction tube, so that the mixed solution can fully flow in the reaction tube, particularly, the connected adapter tube can mix the solution color developing agent again in the flow of the mixed solution, the full fusion of the solution color developing agent is ensured, and the reaction time is shortened;
2. the bubble removing and exhausting device particularly arranged in the invention can assist the shaking of the reaction tube, and each plunger can carry out high-frequency vibration transmission on the main body of the reaction tube in sliding fit during the shaking, so that bubbles at the inner wall of the reaction tube are completely broken, and residual gas flowing into a mixed solution can be exhausted in an assisting manner, thereby ensuring the uniformity of the solution.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a liquid-mixed reaction module according to the present invention;
FIG. 3 is a schematic structural diagram of a fluid mixing device according to the present invention;
FIG. 4 is a schematic view of the flow head of the present invention;
FIG. 5 is a schematic view of the bubble removing and exhausting apparatus according to the present invention;
FIG. 6 is a schematic view of the structure of the bell and spigot ring frame of the present invention;
in the figure: 1. detecting a machine table; 11. a loading rack; 12. placing a tray; 13. a transmission rack; 14. a driving seat; 15. a liquid taking pipe; 16. a chromatograph; 2. a liquid mixing reaction assembly; 21. fixing the machine body; 22. a reaction tube; 3. a flowing liquid mixing device; 31. a guide frame; 32. a pedestal body; 33. an external connection seat; 34. circulating the pipe frame; 35. a compression spring; 36. a buffer ring; 37. a top position member; 38. a support spring; 39. a transfer tube; 4. a bubble removing and exhausting device; 41. a lateral frame; 42. a connecting spring; 43. a drive plate; 44. a strut member; 5. a flow head; 51. A drainage page; 52. a micro-motor; 53. an inner connecting pipe; 54. a collecting bin; 55. an upper liquid discharge seat; 56. an inner shaft tube; 57. a ball valve; 6. sleeving a ring frame; 61. a fixed collar; 62. a plunger; 63. an air cavity; 64. a limiting spring; 65. and (4) hole arraying.
Detailed Description
Referring to fig. 1, in an embodiment of the present invention, an apparatus for detecting pesticide residue in a water sample includes: the device comprises a detection machine platform 1, wherein a carrying and placing frame 11 is fixed on one side of the upper end face of the detection machine platform 1, a placing disc 12 is arranged on the carrying and placing frame 11 in a relatively rotating mode, and a plurality of inner notches are uniformly formed in the circumference of the placing disc 12 and used for taking and placing sample bottles; a transmission frame 13 is transversely fixed on the upper end surface of the detection machine table 1, a driving seat 14 is arranged on the transmission frame 13 in a relatively sliding manner, and a liquid taking pipe 15 is vertically installed on the driving seat 14 in a sliding manner and used for correspondingly extracting water quality samples in the sample bottles; a mixed liquid reaction component 2 is fixed on one side of the detection machine table 1, which is positioned on the loading frame 11, and the mixed liquid reaction component 2 can mix the extracted water quality sample into the reaction liquid; the up end of detecting board 1 still is provided with chromatograph 16, that is to say, but quality of water sample evenly distributed is a set of or multiunit, and when examining quality of water sample extraction, it carries out solution mixing to mix liquid reaction unit, and the mixed solution after mixing can be placed and measure in the measuring chamber passageway in the chromatograph to improve the detection precision when guaranteeing pesticide residue detection efficiency.
In this embodiment, the liquid mixing reaction module 2 includes: the utility model discloses a reaction device, including fixed organism 21, be provided with a plurality of chambeies in the fixed organism 21, what the intracavity slidable was placed is provided with reaction tube 22, be located each in the fixed organism 21 one side that holds the chamber all vertically is provided with mobile liquid mixing device 3, mobile liquid mixing device 3 can slide and stretch into to in the reaction tube 22, just still be equipped with in the fixed organism 21 and remove bubble exhaust apparatus 4, wherein the preferential injection of reaction tube has the enzyme preparation, after the liquid taking pipe pumped the quality of water sample to the reaction tube, mobile liquid mixing device can slide and stretch into in the reaction tube to supplementary flowing back promotes solution reaction and mixes, then can directly discharge through removing the residual gas that bubble exhaust apparatus got into in to the mixed solution, thereby guarantees mixed solution homogeneity, avoids influencing the testing result.
As a preferred embodiment, the flowing liquid mixing device 3 comprises: leading truck 31, vertical fixing in fixed organism 21, the slip is provided with pedestal body 32 on leading truck 31, the vertical extension seat 33 that is fixed with on pedestal body 32, the lower terminal surface of extension seat 33 is provided with circulation pipe support 34 with the centre of a circle, circulation pipe support 34 can slide and stretch into to reaction tube 22 in, the inside below that holds the chamber is provided with top position piece 37, the cross section of top position piece 37 is set up to semi-circular structure, just it is provided with supporting spring 38 to hold the intracavity, supporting spring 38 with top position piece 37 is connected, it is provided with a plurality of compression springs 35 to arrange on the circumference lateral wall of extension seat 33, the below of extension seat 33 cup joints ring body through compression spring 35, ring body can lean on the contact along the counterbalance on the circumference of reaction tube 22 in vertical displacement, just still adjust on the extension seat 33 and have buffering spring 36, buffering 36 can follow reaction tube 22 inner wall vertical slip, the upper end of extension seat 33 still communicates has adapter 39, wherein mainly makes in the ring body and the inseparable contact with the reaction tube body, and the support ring body side and the reaction tube compression spring and the compression spring that the ring body is fully flowed into to the reaction tube, thereby the intraductal intercommunication of ring is realized that the loop is inseparable reaction tube and the reaction tube.
In this embodiment, a flow head 5 is fixed on a lower end surface of the circulation pipe frame 34, a drainage hinge 51 is relatively rotatably disposed in the flow head 5, a micro motor 52 is mounted on the circulation pipe frame 34, an output end of the micro motor 52 is fixed to the drainage hinge 51, a flow channel is disposed in the middle of the lower end surface of the flow head 5, inner pipes 53 are symmetrically disposed on the circulation pipe frame 34, the inner pipes 53 are communicated with the flow head 5, a collecting bin 54 is disposed on the circulation pipe frame 34, another end of the inner pipe 53 is communicated with the collecting bin 54, an upper drainage seat 55 is fixed on the circulation pipe frame 34, a plurality of channels are circumferentially disposed on the upper drainage seat 55, and each channel is respectively communicated with the collecting bin 54, that is, the drainage hinge can introduce a mixed solution into the collecting bin through the flow channel under continuous rotation, and discharge the mixed solution through the channel on the upper drainage seat, so as to form a circulation effect of lower collecting flow and upper scattering flow in the reaction pipe, thereby improving the solution mixing effect.
In this embodiment, the middle part of going up flowing back seat 55 still vertically is provided with interior central siphon 56, it is fixed with the circulation dish to go up to inlay the flowing back seat 55, switching pipe 39 with the one end of interior central siphon 56 is linked together, the other end of interior central siphon 56 with communicate with each other on the circulation dish, the circumference has seted up a plurality of with the liquid separating chamber that the passageway corresponds on the circulation seat, it all slides in the liquid separating chamber and is provided with ball valve 57, just still be provided with the internal spring in the liquid separating chamber, the one end of internal spring with ball valve 57 is connected.
In this embodiment, the quantitative transport has the solution color developing agent in the switching pipe 39, and especially the solution color developing agent in the switching pipe can be through dividing liquid cavity one-way flow to passageway department to fully fuse with the mixed solution in the passageway, further guarantee to fuse the effect.
As a preferred embodiment, the bubble removing and exhausting device 4 comprises: the side frame 41 is circumferentially distributed in the containing cavity, a plurality of connecting springs 42 are arranged between the side frame 41 and the side wall of the containing cavity, a driving disc 43 is arranged in the fixed machine body 21 and can rotate relatively, a sleeving ring frame 6 is arranged in the containing cavity, the sleeving ring frame 6 is sleeved outside the reaction tube 22 in a sliding manner, a strut member 44 is connected to the driving disc 43 in a rotating manner, one end of the strut member 44 is connected with the sleeving ring frame 6, namely, the reaction tube can swing under continuous low-speed rotation of the driving disc, and residual gas in mixed solution can be discharged to the upper side and attached to the side wall to form bubbles during swinging, so that the solution can be kept in integral uniformity before detection.
In this embodiment, a fixing collar 61 is relatively rotatably disposed in the socket ring frame 6, a plurality of air cavities 63 are symmetrically disposed on the fixing collar 61, a plunger 62 is slidably disposed in each air cavity 63, and one side of the plunger 62 is connected to a supporting plate through a limiting spring 64.
In this embodiment, each air cavity 63 is connected with a pulse pump through an airflow pipe, the displacement directions of the plungers 62 on the opposite sides are synchronous, and the air cavities 63 are provided with discharge holes 65, so that particularly, when bubbles are adhered to the side walls of the reaction pipes by swinging of the reaction pipes, the plungers can displace and slide through the discharge holes by continuous air supply of the pulse pumps, the discharge holes discharge the gas in time, and the plungers can slide and reset, so that multi-directional high-frequency vibration transmission of the reaction pipes is formed, and the collision effect on the bubbles is formed.
Specifically, the water quality sample can be divided into one or more samples and placed in a sample bottle, the water taking tube pumps the water quality sample into the reaction tube one by one at the moment so as to be mixed with the enzyme preparation in the reaction tube, then the flowing liquid mixing device assists the enzyme preparation to carry out solution mixing, the solution color developing agent is gradually added in the flow, the reaction tube swings under the continuous low-speed rotation of the driving disc after the complete fusion, the vibration is transmitted to the main body of the reaction tube at high frequency by matching with the sliding displacement action of the plunger at the moment, so that the effect of collision and breakage of bubbles formed on the side wall is realized, the uniformity of the solution is ensured, and finally the water quality sample is placed into a chromatograph for measurement.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent substitutions or changes according to the technical solution and the inventive concept of the present invention should be covered by the scope of the present invention.
Claims (9)
1. A quality of water sample pesticide residue detection instrument equipment which characterized in that: it comprises the following steps: the detection device comprises a detection machine table (1), wherein a carrying frame (11) is fixed on one side of the upper end face of the detection machine table (1), a placing disc (12) is arranged on the carrying frame (11) in a relatively rotating mode, and a plurality of inner notches are uniformly formed in the circumference of the placing disc (12) and used for taking and placing sample bottles; a transmission frame (13) is transversely fixed on the upper end face of the detection machine table (1), a driving seat (14) is arranged on the transmission frame (13) in a relatively sliding manner, and a liquid taking pipe (15) is vertically installed on the driving seat (14) in a sliding manner and used for correspondingly extracting water quality samples in each sample bottle; a mixed liquid reaction component (2) is fixed on one side of the detection machine platform (1) on the carrying frame (11), and the mixed liquid reaction component (2) can mix the extracted water quality sample into the reaction liquid; the upper end face of the detection machine table (1) is also provided with a chromatograph (16).
2. The water quality sample pesticide residue detection instrument and equipment of claim 1, wherein: the liquid mixing reaction assembly (2) comprises: the device comprises a fixed machine body (21), wherein a plurality of containing cavities are formed in the fixed machine body (21), a reaction tube (22) is arranged in the containing cavities in a sliding mode, the fixed machine body (21) is internally provided with a flowing liquid mixing device (3) which is vertically arranged on one side of each containing cavity, the flowing liquid mixing device (3) can slide and stretch into the reaction tube (22), and a bubble removing and exhausting device (4) is further arranged in the fixed machine body (21).
3. The water quality sample pesticide residue detection instrument and equipment of claim 2, wherein: the flowing liquid mixing device (3) comprises: leading truck (31), vertical fixing in fixed organism (21), it is provided with pedestal body (32) to slide on leading truck (31), the vertical external seat (33) that is fixed with on pedestal body (32), the lower terminal surface of external seat (33) is provided with circulation pipe support (34) with the centre of a circle, circulation pipe support (34) can slide and stretch into to reaction tube (22) in, the inside below that holds the chamber is provided with top position spare (37), the cross section of top position spare (37) is set up to semi-circular structure, just it is provided with supporting spring (38) to hold the intracavity, supporting spring (38) with top position spare (37) are connected, it is provided with a plurality of compression spring (35) to arrange on the circumference lateral wall of external seat (33), the below of external seat (33) is through compression spring (35) cup joint the support body, the ring support body can be in vertical displacement with the circumference of reaction tube (22) along leaning on the contact, just still adjust on external seat (33) buffering ring circle (36), the inner wall of sliding connection seat (33) is followed the reaction tube (22), the intercommunication tube (39) is held.
4. The water quality sample pesticide residue detection instrument and equipment of claim 3, characterized in that: the lower terminal surface of circulation pipe support (34) is fixed with mobile head (5), but in mobile head (5) relative rotation be provided with drainage page or leaf spare (51), install micro motor (52) on circulation pipe support (34), micro motor's (52) output with drainage page or leaf spare (51) are fixed mutually, the lower terminal surface middle part of mobile head (5) is equipped with the circulation canal, just the symmetry is provided with nipple (53) on circulation pipe support (34), nipple (53) with mobile head (5) are linked together, just be equipped with mass flow storehouse (54) on circulation pipe support (34), the other end of nipple (53) with mass flow storehouse (54) are linked together, be fixed with last drainage seat (55) on circulation pipe support (34), upward be provided with a plurality of drainage channels in lateral direction in drainage seat (55), each the passageway respectively with mass flow storehouse (54) are linked together.
5. The water quality sample pesticide residue detection instrument and equipment of claim 4, wherein: go up the middle part of flowing back seat (55) and still vertically be provided with central siphon (56), it is fixed with the circulation dish to go up the embedding of flowing back seat (55), switching pipe (39) with the one end of central siphon (56) is linked together, the other end of central siphon (56) with communicate with each other on the circulation dish, the circulation seat go up circumference seted up a plurality of with the corresponding branch liquid chamber of passageway, divide the equal slip of intracavity to be provided with ball valve (57), just divide the intracavity still to be provided with the inner spring, the one end of inner spring with ball valve (57) are connected.
6. The water quality sample pesticide residue detection instrument and equipment of claim 3, characterized in that: solution color developing agent is quantitatively conveyed in the adapter tube (39).
7. The water quality sample pesticide residue detection instrument of claim 2, characterized in that: the bubble removing and exhausting device (4) comprises: side frame (41), circumference distributes hold the intracavity, side frame (41) and hold and be provided with a plurality of connecting spring (42) between the chamber lateral wall, but relative pivoted is provided with driving-disc (43) in fixed organism (21), it cup joints ring frame (6) to hold intracavity, cup joint ring frame (6) slip cover is established outside reaction tube (22), it is connected with member (44) to rotate on driving-disc (43), the one end of member (44) with cup joint ring frame (6) are connected.
8. The apparatus of claim 7 for detecting pesticide residue in a water sample, wherein: the sleeve joint ring frame is characterized in that a fixing ring collar (61) is arranged in the sleeve joint ring frame (6) in a relatively rotating mode, a plurality of air cavities (63) are symmetrically formed in the fixing ring collar (61), plungers (62) are arranged in the air cavities (63) in a sliding mode, and one side of each plunger (62) is connected with a supporting plate through a limiting spring (64).
9. The apparatus of claim 8 for detecting pesticide residue in a water sample, wherein: each air cavity (63) is connected with a pulse pump through an airflow pipe, the displacement directions of the plungers (62) on the opposite sides are synchronous, and the air cavities (63) are provided with discharge holes (65).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211384691.0A CN115711951B (en) | 2022-11-07 | 2022-11-07 | Pesticide residue detection instrument equipment in water quality sample |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211384691.0A CN115711951B (en) | 2022-11-07 | 2022-11-07 | Pesticide residue detection instrument equipment in water quality sample |
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| CN115711951B CN115711951B (en) | 2023-12-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116953179A (en) * | 2023-09-21 | 2023-10-27 | 兰州市食品药品检验检测研究院 | Device and method for detecting pesticide residues in traditional Chinese medicinal materials |
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