CN221465010U - Pesticide residue detects solid-phase extraction device - Google Patents
Pesticide residue detects solid-phase extraction device Download PDFInfo
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- CN221465010U CN221465010U CN202322990890.2U CN202322990890U CN221465010U CN 221465010 U CN221465010 U CN 221465010U CN 202322990890 U CN202322990890 U CN 202322990890U CN 221465010 U CN221465010 U CN 221465010U
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Abstract
The invention relates to the technical field of extraction equipment, in particular to a pesticide residue detection solid-phase extraction device, which comprises a liquid injection component and an extraction component, wherein a fixing frame of the liquid injection component is fixedly arranged on a workbench, a cylinder is fixedly arranged on the fixing frame and is used for changing the position of a liquid injector positioned on the fixing frame, a plurality of liquid outlet holes are formed in the liquid injector, the liquid injector is connected with an injection pump through a pipeline, and the liquid injector is connected with an air pump through a pipeline; the fixed plate sliding mounting of extraction subassembly is on the mounting bracket, and extraction board joint is on the mounting bracket, and extraction post and the play liquid hole on the extraction board have the same axis, and extraction post on the extraction board has the same axis with the test tube on the fixed plate. The injection pump replaces manual addition of the sample detection liquid, so that the sample detection liquid is prevented from splashing; the air pump is used for replacing a vacuum pump, and the air cylinder is used for driving the liquid injector to move, so that the process of repeatedly inserting and extracting the extraction plate is avoided, and the service life of each part is prolonged; at the same time, the operability of the device is improved.
Description
Technical Field
The disclosure relates to the technical field of extraction equipment, in particular to a pesticide residue detection solid-phase extraction device.
Background
The solid phase extraction is a sample pretreatment technology developed in recent years, is developed by combining liquid-solid extraction and column liquid chromatography, is mainly used for separating, purifying and concentrating samples, can improve the recovery rate of analytes compared with the traditional liquid-liquid extraction method, can more effectively separate the analytes from interference components, can reduce the sample pretreatment process, is simple to operate, saves time and labor, and is widely applied to the fields of medicine, food, environment, business inspection, chemical industry and the like. The existing solid phase extraction instrument comprises the following operation steps: firstly, placing a receiving test tube, covering a tray, and inserting an extraction column; step two, connecting and opening a vacuum pump; third, the sample tube on the tray is placed into the sample. After extraction is completed, the test tube is taken out according to the opposite steps, the tray and the vacuum tank are damaged in the process of continuously inserting and extracting the tray by an operator, meanwhile, the operator needs to manually add the sample in the process of adding the sample, shaking can occur in the process of adding the sample, and the sample detection liquid is splashed, so that the extraction efficiency is influenced.
Accordingly, the present disclosure provides an agricultural residue detection solid phase extraction device to solve the above-mentioned problems.
Disclosure of Invention
The disclosure provides a pesticide residue detection solid-phase extraction device to solve the technical problems that the inventor realizes that in the process of continuously inserting and extracting a tray, damage can be caused to the tray and a vacuum groove, meanwhile, in the process of adding a sample, the operator needs to manually add the sample, and in the process of adding the sample, shaking possibly occurs, so that sample detection liquid is splashed, and extraction efficiency is affected.
The present disclosure provides a pesticide residue detection solid phase extraction device, comprising:
The liquid injection assembly comprises a workbench, a fixing frame, a cylinder, a liquid injector, an injection pump and an air pump, wherein the fixing frame is fixedly arranged on the workbench, the cylinder is fixedly arranged on the fixing frame and is used for changing the position of the liquid injector at the fixing frame, a plurality of liquid outlet holes are formed in the liquid injector, the liquid injector is connected with the injection pump through a pipeline, and the liquid injector is connected with the air pump through a pipeline;
The extraction assembly comprises a mounting frame, a fixing plate and an extraction plate, wherein the mounting frame is mounted on the workbench in a sliding mode, the fixing plate is used for bearing test tubes, the extraction plate is used for bearing extraction columns, the fixing plate is mounted on the mounting frame in a sliding mode, the extraction plates are connected to the mounting frame in a clamping mode, the extraction columns on the extraction plates and the liquid outlet holes are coaxial, and the extraction columns on the extraction plates and the test tubes on the fixing plate are coaxial.
In any of the above technical solutions, further, the workbench further comprises a limiting assembly, the limiting assembly comprises an elastic piece and a limiting plate, the workbench is provided with a groove, the limiting plate is rotatably installed at one end of the groove, the elastic piece is arranged in the groove, and two ends of the elastic piece are respectively connected with the limiting plate and the workbench.
In any of the above technical solutions, further, the limiting assembly has a first state and a second state, and when the limiting assembly is in the first state, the limiting plate and the workbench have the same horizontal plane; when the limiting assembly is in the second state, the length direction of the limiting plate is perpendicular to the upper surface of the workbench.
In any of the above technical solutions, further, a first sliding groove is formed in the workbench, a first sliding block is fixedly installed on the bottom surface of the mounting rack, and the first sliding block is slidably installed in the first sliding groove.
In any of the above technical solutions, further, a silica gel pad is disposed at the periphery of the liquid outlet hole, and an outer diameter of the silica gel pad is at least greater than an outer diameter of the extraction column on the extraction plate.
In any of the above technical solutions, further, protrusions are provided at two ends of the extraction plate, and a clamping groove is provided on the mounting rack, and the protrusions can be accommodated in the clamping groove.
In any of the above technical solutions, further, a second sliding groove is provided on the opposite inner side of the mounting frame, and the fixing plate is slidably mounted in the second sliding groove.
In any of the above technical solutions, further, a handle is fixedly installed on the installation frame.
In any of the above technical solutions, further, two ends of the liquid injector are detachably connected with a second slide block, a third slide groove is formed in the fixing frame, and the second slide block is slidably mounted in the third slide groove.
In any of the above technical solutions, further, an invisible buckle is disposed on the fixing plate.
The beneficial effects of the present disclosure mainly lie in:
1. According to the injection assembly and the extraction assembly, the injection pump replaces manual addition of the sample detection liquid, so that the sample detection liquid is prevented from splashing, and the quantity value of the injection sample detection liquid can be set; the air pump is used for replacing a vacuum pump, and the air cylinder is used for driving the liquid injector to move, so that the process of repeatedly inserting and extracting the extraction plate is avoided, and the service life of each part is prolonged; simultaneously, the sliding mounting of mounting bracket and mount, the sliding mounting of fixed plate and mounting bracket, extraction board and the joint of mounting bracket, the maneuverability of device is all further improved, can guarantee the basic operation of operating personnel to the device, takes extraction post, test tube and cleaning operation thereof.
2. According to the air cylinder, through the design of the elastic piece and the limiting plate, when the limiting plate is in the first state, the surface liquid outlet hole and the extraction column are not on the same axis, and when the limiting plate is in the second state, the surface liquid outlet hole and the extraction column are on the same axis, so that an operator can conveniently judge whether the air cylinder can be started or not.
3. According to the invention, the silica gel pad is arranged on the periphery of the liquid outlet hole, so that the damage of the extraction column caused by collision of the liquid injector with the extraction column in the descending process is prevented; in the second aspect, the silica gel pad has certain flexibility, and has certain sealing function when contacting with the pipe orifice of the extraction column, so that the air pump is beneficial to pressing the sample detection liquid in the extraction column.
It is to be understood that both the foregoing general description and the following detailed description are for purposes of example and explanation and are not necessarily limiting of the disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of the present disclosure. Meanwhile, the description and drawings are used to explain the principles of the present disclosure.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the prior art, the drawings that are required in the detailed description or the prior art will be briefly described, it will be apparent that the drawings in the following description are some embodiments of the present disclosure, and other drawings may be obtained according to the drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic view of the overall perspective structure of a device according to an embodiment of the present disclosure;
Fig. 2 is a schematic perspective view of a device when a limiting assembly according to an embodiment of the disclosure is in a second state;
Fig. 3 is a schematic perspective view of a device when a limiting assembly according to an embodiment of the disclosure is in a first state;
FIG. 4 is an enlarged schematic view of the structure at A in an embodiment of the disclosure;
FIG. 5 is an enlarged schematic view of the structure at B in an embodiment of the disclosure;
FIG. 6 is a schematic diagram of a perspective view of an injector according to an embodiment of the disclosure;
Fig. 7 is a schematic perspective view of a first slider according to an embodiment of the disclosure.
Icon:
100-a liquid injection assembly; 101-a workbench; 102-fixing frame; 103-cylinder; 104-a liquid injector; 105-a liquid outlet hole; 106-a first chute; 107-silica gel pad; 108-clamping grooves; 109-a third chute; 110-grooves; 200-an extraction assembly; 201-mounting rack; 202-a fixed plate; 203-an extraction plate; 204-a first slider; 205-bump; 206-a second chute; 207-handle; 208-a second slider; 209-invisible clasp; 300-limiting components; 301-an elastic member; 302-limiting plate.
Detailed Description
The following description of the embodiments of the present disclosure will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present disclosure.
Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.
In the description of the present disclosure, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present disclosure. 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.
In the description of the present disclosure, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art in the specific context.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, and fig. 7, the disclosure provides a solid-phase extraction device for pesticide residue detection, which comprises a liquid injection assembly 100 and an extraction assembly 200, wherein the liquid injection assembly 100 comprises a workbench 101, a fixing frame 102, a cylinder 103, a liquid injector 104, an injection pump (not shown in the drawings in the prior art) and an air pump (not shown in the drawings in the prior art), the fixing frame 102 is fixedly installed on the workbench 101 through bolts, the cylinder 103 is fixedly installed at the upper end of the fixing frame 102 through bolts, the cylinder 103 is used for changing the position of the liquid injector 104 on the fixing frame 102, namely, the end part of a piston rod of the cylinder 103 is detachably connected with the upper surface of the liquid injector 104 through bolts, when the cylinder 103 operates, the piston rod contracts to cause the position change of the liquid injector 104, a plurality of liquid outlet holes 105 are formed in the lower surface of the liquid injector 104, the number of the liquid injector 105 is 3, the liquid injector 104 can be rearranged according to practical situations in the specific implementation process, the liquid injector 104 is connected with the injection pump through a pipeline, and the liquid injector 104 is connected with the air pump through the pipeline; the extraction assembly 200 comprises a mounting frame 201 mounted on the workbench 101 in a sliding manner, a fixing plate 202 for bearing test tubes and an extraction plate 203 for bearing extraction columns, wherein the workbench 101 is provided with a first sliding groove 106, the bottom surface of the mounting frame 201 is welded with a first sliding block 204, the first sliding block 204 is mounted in the first sliding groove 106 in a sliding manner, the mounting frame 201 can slide along the length direction of the first sliding groove 106 on the workbench 101, the fixing plate 202 is mounted on the mounting frame 201 in a sliding manner, namely, a second sliding groove 206 is formed in the inner side opposite to the mounting frame 201, two sides of the fixing plate 202 are mounted in the second sliding groove 206 in a sliding manner, the extraction plate 203 is clamped on the mounting frame 201, namely, two ends of the extraction plate 203 are provided with protrusions 205, the mounting frame 201 is provided with clamping grooves 108, the protrusions 205 can be accommodated in the clamping grooves 108, the protrusions 205 and the extraction columns on the extraction plate 203 and the liquid outlet 105 are integrally formed, and the extraction columns on the extraction plate 203 and the test tubes on the fixing plate 202 have the same axis. The liquid injector 104 according to the present disclosure is a rectangular parallelepiped having a cavity therein, and has a function of communicating the liquid outlet 105 with the injection pump line and communicating the liquid outlet 105 with the air pump line; the syringe pump is a device for injecting the sample detection liquid into the liquid injector 104; the air pump is used for applying pressure to the sample detection liquid in the extraction column through the liquid injector 104 so as to accelerate the extraction of the equipment. It should be noted that, the connection relationship and the operation principle of the syringe pump, the air pump and the injector 104 are clear to those skilled in the art, and thus the disclosure is not described in detail herein.
According to the design of the liquid injection assembly 100 and the extraction assembly 200, the sample detection liquid is replaced by an injection pump to be manually added, so that the sample detection liquid is prevented from splashing, and the quantity value of the injected sample detection liquid can be set; the air pump is used for replacing a vacuum pump, the air cylinder 103 is used for driving the liquid injector 104 to move, the process of repeatedly inserting and extracting the extraction plate 203 is avoided, and the service life of each part is prolonged; simultaneously, the sliding installation of mounting bracket 201 and mount 102, the sliding installation of fixed plate 202 and mounting bracket 201, extraction board 203 and the joint of mounting bracket 201 all further improve the maneuverability of device, can guarantee the basic operation of operating personnel to the device, take extraction post, test tube and washing operation thereof.
Referring to fig. 3 and fig. 4, in any one of the above technical solutions, further, the device further includes a limiting assembly 300, the limiting assembly 300 includes an elastic member 301 and a limiting plate 302, the workbench 101 is provided with a groove 110, one end of the limiting plate 302 is rotatably installed at one end of the groove 110, the elastic member 301 is disposed in the groove 110, two ends of the elastic member 301 are respectively connected with the limiting plate 302 and the workbench 101, and the elastic member 301 may be any one of a coil spring, a gas spring and a rubber spring. Specifically, the number of the limiting assemblies 300 is two, and then the number of the grooves 110 is two, and the two grooves 110 are oppositely disposed on two sides of the workbench 101 in the length direction of the first chute 106. Since the present disclosure relates to a bilateral symmetry structure, only one side is described in the description, and the structure of the other side is the same as that of the other side, and the installation relationship is symmetrical thereto, so that a detailed description is omitted.
In any of the above technical solutions, further, the limiting assembly 300 has a first state and a second state, when the limiting assembly 300 is in the first state, the limiting plate 302 and the workbench 101 have the same horizontal plane, the limiting plate 302 receives the pressure of the mounting frame 201, so that the elastic member 301 is compressed into the groove 110, the surface extraction column is not under the liquid outlet 105, and the cylinder 103 cannot be started; when the limiting assembly 300 is in the second state, the length direction of the limiting plate 302 is perpendicular to the upper surface of the workbench 101, the mounting frame 201 is separated from the limiting plate 302, the elastic piece 301 releases elastic energy, the limiting plate 302 is sprung to be perpendicular to the workbench, the surface extraction column is located under the liquid outlet 105, and the air cylinder 103 can be started.
According to the design of the elastic piece 301 and the limiting plate 302, when the limiting plate 302 is in the first state, the surface liquid outlet 105 and the extraction column are not on the same axis, and when the limiting plate 302 is in the second state, the surface liquid outlet 105 and the extraction column are on the same axis, so that an operator can conveniently judge whether the cylinder 103 can be started.
Referring to fig. 7, in any of the above technical solutions, further, a silica gel pad 107 is disposed around the liquid outlet 105, the outer diameter of the silica gel pad 107 is at least larger than the outer diameter of the extraction column on the extraction plate 203, and the silica gel pad 107 is used for protecting the nozzle of the extraction column, so as to avoid damage to the extraction column during the descent of the liquid injector 104.
In the present disclosure, the silica gel pad 107 is disposed at the periphery of the liquid outlet 105, so as to prevent the injector 104 from colliding with the extraction column during the descending process to damage the extraction column; in the second aspect, the silica gel pad 107 has a certain flexibility, and has a certain sealing function when contacting with the pipe orifice of the extraction column, so that the air pump is beneficial to pressing the sample detection liquid in the extraction column.
Referring to fig. 2 and 7, in any of the above embodiments, further, a handle 207 is fixedly installed on the mounting frame 201, and the handle 207 is used to pull the mounting frame 201 to slide the first slider 204 along the first sliding groove 106 on the workbench 101.
Referring to fig. 2, in any of the above technical solutions, further, two ends of the injector 104 are detachably connected with a second slide block 208 through bolts, a third slide groove 109 is formed on the fixing frame 102, the second slide block 208 is slidably mounted in the third slide groove 109, and the second slide block 208 is used for increasing smoothness of movement of the injector 104 on the fixing frame 102, so as to prevent jamming.
Referring to fig. 3 and 7, in any of the above embodiments, further, a hidden button 209 is provided on the fixing plate 202 for pulling the fixing plate 202 to slide the fixing plate 202 along the second chute 206 on the mounting frame 201.
Embodiments of the present application will be described in detail below with reference to specific examples, but it will be understood by those skilled in the art that the following examples are only for illustrating the present application and should not be construed as limiting the scope of the present application. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus selected are not specific to the manufacturer and are conventional products commercially available.
Example 1
In a solid phase extraction device for detecting pesticide residues, the liquid outlet holes 105 of the liquid injector 104 of the liquid injection assembly 100 can be communicated with each other or not. In this embodiment, the injector 104 may have an internal cavity, and the liquid outlet holes 105 are mutually communicated, that is, the sample detection liquid in the pipeline of the injection pump directly enters the internal cavity of the injector 104 and flows into the corresponding extraction column through different liquid outlet holes 105; or, the injector 104 may have a plurality of internal cavities, and the liquid outlet holes 105 are not communicated with each other, that is, the number of the pipelines passing through the injection pump corresponds to the number of the liquid outlet holes 105, and the sample detection liquid in each pipeline directly flows into the corresponding extraction column through each liquid outlet hole 105 of the injector 104.
Similarly, the operation of the air pump to apply pressure to the sample detection liquid in the extraction column is consistent with the principle of the liquid injector 104, and the disclosure will not be repeated here. The specific principles of operation of the syringe pump and the air pump, respectively, will be apparent to those skilled in the art and, therefore, the disclosure is not described in detail herein.
The structure of the liquid injector 104 in the first embodiment is not limited to the above two types, and the liquid injector 104 with other structures can be freely selected according to the actual working conditions, so as to realize the function of injecting the sample detection liquid into the extraction column; the liquid injector 104 of other structures will not be described in detail in this embodiment.
Specifically, the present disclosure provides a pesticide residue detects solid phase extraction device's theory of operation that: the extraction plate 203 carrying the extraction column is clamped with the mounting frame 201 through the bulge 205; placing the test tube on the fixed plate 202, sliding the fixed plate 202 on the mounting frame 201 along the second sliding groove 206, pushing the fixed plate 202 to the lower part of the extraction plate 203, and installing an extraction column on the extraction plate 203, wherein the extraction column and the test tube have the same axis; pushing the mounting frame 201 to slide the first slider 204 along the first chute 106 to a position below the injector 104; the limiting plate 302 is changed from the first state to the second state under the action of the elastic member 301, which represents that the extraction column and the liquid outlet 105 of the liquid injector 104 have the same axis; starting the air cylinder 103, wherein a piston rod of the air cylinder 103 drives the liquid injector 104 to move downwards along a third chute 109 of the fixing frame 102, and setting a silica gel pad 107 at the periphery of a liquid outlet 105 of the liquid injector 104 to stop when contacting with a port of an extraction column, so that the liquid outlet 105 completely falls into a pipe orifice of the extraction column; the sample detection liquid flows into the extraction column through the liquid outlet 105 of the liquid injector 104 by an injection pump, and the injection value is set for extraction; after the injection pump is stopped, the air pump applies pressure to the sample detection liquid in the extraction column through the liquid outlet 105 of the liquid injector 104, so as to accelerate extraction.
After extraction is completed, a piston rod of the air cylinder 103 drives the liquid injector 104 to restore to an initial position; pulling the handle 207 on the mounting frame 201 to enable the first sliding block 204 on the mounting frame 201 to move outwards along the first sliding groove 106, and simultaneously changing the second state into the first state after the limiting plate 302 receives the force of the mounting frame 201, so that the elastic piece 301 is compressed, and the mounting frame 201 is separated from the range of the fixing frame 102; the fixing plate 202 is pulled by the invisible buckle 209, so that the fixing plate 202 slides outwards along the second sliding groove 206 on the mounting frame 201 until the fixing plate is separated from the second sliding groove 206, and an operator can operate the test tube after carrying extraction on the fixing plate 202. In the next extraction, the above operation is repeated.
It should be noted that, specific model specifications of the air cylinder 103, the injection pump, and the air pump need to be determined by selecting a model according to actual specifications of the device, and a specific model selection calculation method adopts the prior art in the field, so detailed descriptions are omitted.
The power supply of the cylinder 103, the syringe pump, the air pump and the principle thereof will be clear to a person skilled in the art and will not be described in detail here.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present disclosure, and not for limiting the same; although the present disclosure has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present disclosure.
Claims (10)
1. The utility model provides a pesticide residue detects solid-phase extraction device which characterized in that includes:
The liquid injection assembly comprises a workbench, a fixing frame, a cylinder, a liquid injector, an injection pump and an air pump, wherein the fixing frame is fixedly arranged on the workbench, the cylinder is fixedly arranged on the fixing frame and is used for changing the position of the liquid injector at the fixing frame, a plurality of liquid outlet holes are formed in the liquid injector, the liquid injector is connected with the injection pump through a pipeline, and the liquid injector is connected with the air pump through a pipeline;
The extraction assembly comprises a mounting frame, a fixing plate and an extraction plate, wherein the mounting frame is mounted on the workbench in a sliding mode, the fixing plate is used for bearing test tubes, the extraction plate is used for bearing extraction columns, the fixing plate is mounted on the mounting frame in a sliding mode, the extraction plates are connected to the mounting frame in a clamping mode, the extraction columns on the extraction plates and the liquid outlet holes are coaxial, and the extraction columns on the extraction plates and the test tubes on the fixing plate are coaxial.
2. The pesticide residue detection solid-phase extraction device according to claim 1, further comprising a limiting assembly, wherein the limiting assembly comprises an elastic piece and a limiting plate, the workbench is provided with a groove, the limiting plate is rotatably arranged at one end of the groove, the elastic piece is arranged in the groove, and two ends of the elastic piece are respectively connected with the limiting plate and the workbench.
3. The solid-phase extraction device for pesticide residue detection according to claim 2, wherein the limiting assembly has a first state and a second state, and when the limiting assembly is in the first state, the limiting plate and the workbench have the same horizontal plane; when the limiting assembly is in the second state, the length direction of the limiting plate is perpendicular to the upper surface of the workbench.
4. The solid-phase extraction device for pesticide residue detection according to claim 1, wherein a first sliding groove is formed in the workbench, a first sliding block is fixedly arranged on the bottom surface of the mounting frame, and the first sliding block is slidably arranged in the first sliding groove.
5. The solid phase extraction device for pesticide residue detection according to claim 1, wherein silica gel mats are arranged on the periphery of the liquid outlet holes, and the outer diameter of the silica gel mats is at least larger than the outer diameter of the extraction columns on the extraction plate.
6. The solid-phase extraction device for pesticide residue detection according to claim 1, wherein protrusions are arranged at two ends of the extraction plate, clamping grooves are formed in the mounting frame, and the protrusions can be accommodated in the clamping grooves.
7. The solid-phase extraction device for pesticide residue detection according to claim 1, wherein a second chute is formed on the opposite inner side of the mounting frame, and the fixing plate is slidably mounted in the second chute.
8. The solid phase extraction device for pesticide residue detection according to claim 1, wherein a handle is fixedly installed on the installation frame.
9. The solid-phase extraction device for pesticide residue detection according to claim 1, wherein two ends of the liquid injector are detachably connected with second sliding blocks, third sliding grooves are formed in the fixing frame, and the second sliding blocks are slidably installed in the third sliding grooves.
10. The solid phase extraction device for pesticide residue detection according to claim 1, wherein the fixing plate is provided with a hidden buckle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322990890.2U CN221465010U (en) | 2023-11-07 | 2023-11-07 | Pesticide residue detects solid-phase extraction device |
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| CN202322990890.2U CN221465010U (en) | 2023-11-07 | 2023-11-07 | Pesticide residue detects solid-phase extraction device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119345748A (en) * | 2024-12-06 | 2025-01-24 | 江苏承开中药有限公司 | A solid phase extraction device for purification and collection of pesticide residues |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119345748A (en) * | 2024-12-06 | 2025-01-24 | 江苏承开中药有限公司 | A solid phase extraction device for purification and collection of pesticide residues |
| CN119345748B (en) * | 2024-12-06 | 2025-10-10 | 江苏承开中药有限公司 | A solid phase extraction device for purification and collection of pesticide residues |
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