CN112285177A - Manufacturing method of tubular suction nozzle type electrochemical sensing device - Google Patents
Manufacturing method of tubular suction nozzle type electrochemical sensing device Download PDFInfo
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- CN112285177A CN112285177A CN202011124854.2A CN202011124854A CN112285177A CN 112285177 A CN112285177 A CN 112285177A CN 202011124854 A CN202011124854 A CN 202011124854A CN 112285177 A CN112285177 A CN 112285177A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000012545 processing Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000012546 transfer Methods 0.000 claims abstract description 19
- 239000002390 adhesive tape Substances 0.000 claims abstract description 15
- 238000007639 printing Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 229910021642 ultra pure water Inorganic materials 0.000 claims abstract description 4
- 239000012498 ultrapure water Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000010902 straw Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012123 point-of-care testing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 208000032170 Congenital Abnormalities Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910021397 glassy carbon Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
Abstract
The invention discloses a manufacturing method of a tubular suction nozzle type electrochemical sensing device, wherein the sensing device comprises a liquid transfer device, a potentiostat, signal processing equipment and a suction pipe, the suction pipe comprises a connector, an electrode pipe and a suction nozzle, a plurality of electrode grooves are formed in the inner wall of the electrode pipe, electrodes are respectively arranged in the electrode grooves, and the electrodes are connected with the potentiostat through the connector, and the manufacturing method comprises the following steps: designing models of the connector, the electrode tube and the suction nozzle through modeling software; preparing a printing material; printing the connector, the electrode tube and the suction nozzle by using a 3D printer according to the model of the printing material; ultrasonically cleaning the printed connector, the electrode tube and the suction nozzle by using ethanol and ultrapure water; arranging electrodes in the electrode grooves, and arranging a conductive adhesive tape on the surface of the connector; assembling the connector, the electrode tube and the suction nozzle into a complete suction tube; and assembling the pipettor, the potentiostat, the signal processing equipment and the pipette into a complete sensing device.
Description
Technical Field
The invention relates to the field of electrochemistry, in particular to a manufacturing method of a tubular suction nozzle type electrochemical sensing device.
Background
The electrochemical sensing method is always the leading technology in the field of chemical and biological sensors and plays an important role in the field of analytical chemistry. As a key component of an electrochemical sensor, electrodes are of great importance in determining the performance of the manufactured sensor.
Electrodes can be divided into three categories according to the physical form of their electrochemical interface: the first type is a conventional disk electrode, including a Glassy Carbon Electrode (GCE), a noble metal electrode (e.g., Au, Pt), and the like. They have been widely used due to good stability and repeatability. The second type is Screen Printed Electrodes (SPE), usually in the form of integrated three electrodes. SPE has the advantages of being easy to use, simple and low in cost, and is particularly suitable for daily use, such as point-of-care testing (POCT). The third category is some homemade materials developed as self-supporting Working Electrodes (WEs), including 2D/3D carbon/metal-based materials (e.g., graphene foam, gold/silver rods, etc.). Their inherent nano-functional surface provides a large sensing surface and good catalytic activity.
Although the above-described electrodes play a role in constructing various sensors, limitations and inherent drawbacks in the manufacturing process have hindered their use. In general, the congenital defect of the disk electrode is mainly caused by the fact that the disk electrode cannot work alone, so that the participation of independent counter electrodes and reference electrodes (CE and RE) is often required. This inevitably leads to bulky sensing equipment and increased sample consumption. Furthermore, the complexity of the three-electrode system increases the risk of operational and systematic errors, negatively affecting the accuracy and precision of the test results. In order to obtain a sensor with high sensitivity and wide response range, most disk-shaped electrodes need to be decorated with functional materials, which sacrifices simplicity and repeatability. In contrast, the integrated three-electrode design of SPE simplifies the sensor setup and miniaturizes the measurement dimensions. However, similar to the disk electrode, the limited sensing area of the SPE still requires further modification. For self-prepared WE, due to unavoidable individual differences, poor repeatability and technical difficulties in large-scale preparation, it is usually used in laboratories less, and in summary, it is necessary to provide a manufacturing method of an electrochemical sensing device that has a simple structure, is convenient to operate, has a wide sensing area, and is easy for mass production.
Disclosure of Invention
The invention aims to provide a manufacturing method of an electrochemical sensing device, which has the advantages of simple structure, convenient operation, wide sensing area and easy mass production.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a manufacturing method of a tubular suction nozzle type electrochemical sensing device comprises a liquid transfer device, a signal acquisition device, a signal processing device and a suction pipe, wherein the suction pipe comprises a connector, an electrode pipe and a suction nozzle, a plurality of electrode grooves are formed in the inner wall of the electrode pipe, a plurality of electrodes are respectively arranged in the electrode grooves, and the electrodes are connected with a potentiostat through the connector, and the manufacturing method comprises the following steps:
the method comprises the following steps: designing models of the connector, the electrode tube and the suction nozzle through modeling software;
step two: preparing a printing material;
step three: printing the connectors, the electrode tubes and the suction nozzles one by using a 3D printer on a printing material according to the model;
step four: ultrasonically cleaning the printed connector, the electrode tube and the suction nozzle by using ethanol and ultrapure water;
step five: arranging electrodes in the electrode grooves, and arranging a conductive adhesive tape on the surface of the connector;
step six: assembling the connector, the electrode tube and the suction nozzle into a complete suction tube;
step seven: and assembling the pipettor, the potentiostat, the signal processing equipment and the pipette into a complete sensing device.
Through can dismantle the potentiostat and connect in the pipettor middle part, signal processing equipment links to each other with the potentiostat, the straw can be dismantled and connect in the pipettor lower extreme, the straw includes the connector, electrode tube and suction nozzle, the suction nozzle top can be dismantled and be connected with the electrode tube, electrode tube top can be dismantled and be connected with the connector, the electrode tube inner wall is equipped with a plurality of electrode slots, be provided with the electrode in the electrode slot respectively, the electrode passes through the connector and links to each other with the potentiostat, make sensing device simple structure, be convenient for operation and easy large-scale production, furthermore, the electrode of integration in the straw has higher liquid utilization ratio on the one hand, on the other hand can adjust electrocatalysis interface area through changing.
Preferably, a plurality of fixing strips matched with the electrode grooves are fixedly connected to the lower portion of the connector, a conductive adhesive tape is arranged on one side, close to the electrode grooves, of each fixing strip, and the conductive adhesive tape is connected with the electrodes.
Through the many fixed strips with electrode tank looks adaptation of fixedly connected with in connector below, one side that the fixed strip is close to the electrode tank is equipped with conducting strip, makes connector and electrode tube link together through fixed strip and electrode tank on the one hand, and on the other hand makes the electrode pass through conducting strip and links to each other with the outside.
Preferably, the top of the connector is provided with a lead, and the lead is communicated with the conductive adhesive tape and the potentiostat.
The top of the connector is provided with a lead which is communicated with the conductive adhesive tape and the potentiostat, so that the electrodes are connected with the potentiostat.
Preferably, the top of the connector is detachably connected with a fixing ring, and the conducting wire penetrates through the fixing ring to communicate the conducting rubber strip with the potentiostat.
Can dismantle through at the connector top and be connected with solid fixed ring, the wire passes solid fixed ring and communicates conducting strip and potentiostat for the wire can be restrainted, thereby avoids mixed and disorderly wire to influence the condition of user operation and takes place.
Preferably, a sealing member is arranged at the joint of the suction pipe and the liquid transfer device.
Be equipped with the sealing member through the junction at straw and pipettor for the straw is sealed more with being connected of pipettor, is favorable to reducing the influence of external environment to the inside sample of straw, thereby is favorable to promoting the accuracy of monitoring data.
Preferably, the sealing element is a circular truncated cone-shaped sealing element with a connecting hole formed in the middle, and the lower end of the liquid transfer device penetrates through the sealing element to be communicated with the suction tube.
The connecting hole is formed in the middle of the sealing piece, and the lower end of the liquid transfer device penetrates through the sealing piece to be communicated with the suction pipe, so that the suction pipe and the liquid transfer device can be conveniently combined together.
Preferably, the horizontal section of the electrode groove is fan-shaped, and the central angle of the electrode groove is 20-60 degrees.
Through setting up the electrode tank into horizontal cross-section for the electrode tank for the fixed strip can the joint be in the same place with the electrode tank, thereby promotes the degree of stability of being connected between connector and the electrode pipe.
Preferably, the suction nozzle is bowl-shaped, and the bottom of the suction nozzle is provided with a through hole.
The suction nozzle is arranged to be bowl-shaped, and the bottom of the suction nozzle is provided with the through hole, so that the liquid transfer device can conveniently suck liquid to be detected through the suction pipe.
Preferably, the signal processing device is one of a notebook computer and a smart phone.
By using a notebook computer or a smart phone as the signal processing equipment, the user can conveniently observe and process the data.
Preferably, the printing material is a photosensitive resin.
Compared with the prior art, the invention has the beneficial technical effects that:
1. the potentiostat is detachably connected to the middle part of the liquid transfer device, the signal processing equipment is connected with the potentiostat, the suction pipe is detachably connected to the lower end of the liquid transfer device and comprises a connector, an electrode pipe and a suction nozzle, the top of the suction nozzle is detachably connected with the electrode pipe, the connector is detachably connected above the electrode pipe, a plurality of electrode grooves are formed in the inner wall of the electrode pipe, electrodes are respectively arranged in the electrode grooves and are connected with the potentiostat through the connector, so that the sensing device is simple in structure and convenient to operate, in addition, the electrodes integrated in the suction pipe have high liquid utilization rate on one hand, and the electrocatalysis interface area can be adjusted by changing the sample amount on the other hand, so that the sensitivity;
2. a plurality of fixing strips matched with the electrode grooves are fixedly connected below the connector, and a conductive adhesive tape is arranged on one side of each fixing strip close to the electrode grooves, so that the connector and the electrode tube can be connected with the electrode grooves through the fixing strips on one hand, and the electrode is connected with the outside through the conductive adhesive tape on the other hand;
3. the top of the connector is provided with the lead which is communicated with the conductive adhesive tape and the potentiostat, so that the electrodes are connected with the potentiostat, meanwhile, the top of the connector is detachably connected with the fixing ring, the lead penetrates through the fixing ring to communicate the conductive adhesive tape with the potentiostat, so that the lead can be bundled, and the condition that the operation of a user is influenced by messy leads is avoided;
4. the sealing piece is arranged at the joint of the suction pipe and the liquid transfer device, so that the connection of the suction pipe and the liquid transfer device is more closed, the influence of the external environment on a sample in the suction pipe is favorably reduced, and the accuracy of monitoring data is favorably improved;
5. the electrode groove is arranged to be the horizontal section, so that the fixing strip and the electrode groove can be clamped together, and the connection stability between the connector and the electrode pipe is improved;
6. the potentiostat is detachably connected to the middle of the pipettor, the signal processing equipment is connected with the potentiostat, the pipette holder is detachably connected to the lower end of the pipettor, the pipettes are detachably connected to the pipette holder and comprise connectors, electrode tubes and suction nozzles, the top of each suction nozzle is detachably connected with one electrode tube, the connectors are detachably connected above the electrode tubes, a plurality of electrode grooves are formed in the inner walls of the electrode tubes, electrodes are respectively arranged in the electrode grooves, and the electrodes are connected with the potentiostat through the connectors, so that the sensing device can simultaneously detect a plurality of groups of samples;
7. by the manufacturing method provided by the invention, the electrochemical sensing device disclosed by the invention can be simply, quickly and massively manufactured.
Drawings
Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the straw of the present invention;
FIG. 3 is a schematic structural diagram of a connector according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of an electrode tube and a suction nozzle according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a connector according to a second embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an electrode tube and a suction nozzle according to a second embodiment of the present invention;
FIG. 7 is a schematic view of the structure of the suction nozzle of the present invention;
FIG. 8 is a schematic view of the seal of the present invention;
fig. 9 is a schematic overall structure diagram of a third embodiment of the present invention.
Wherein, the technical characteristics that each reference numeral refers to are as follows:
1. a pipettor; 2. a potentiostat; 3. a signal processing device; 4. a straw; 41. a connector; 411. a fixing strip; 412. a conductive adhesive tape; 413. a wire; 414. a fixing ring; 42. an electrode tube; 421. an electrode tank; 422. an electrode; 43. a suction nozzle; 431. a through hole; 44. a seal member; 441. and connecting the holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments, but the scope of the present invention is not limited to the following embodiments.
In a first embodiment, referring to fig. 1 to 4, fig. 7 and 8, the present invention discloses a tubular nozzle type electrochemical sensing device, which includes a pipette 1, a potentiostat 2, a signal processing apparatus 3, and a pipette 4. The potentiostat 2 can be detachably connected to the middle part of the liquid transfer device 1, the signal processing equipment 3 is connected with the potentiostat 2, and the suction pipe 4 can be detachably connected to the lower end of the liquid transfer device 1.
The suction tube 4 comprises a connector 41, an electrode tube 42 and a suction nozzle 43, the electrode tube 42 is detachably connected to the top of the suction nozzle 43, and the connector 41 is detachably connected to the upper side of the electrode tube 42. The suction nozzle 43 is bowl-shaped, the bottom of the suction nozzle is provided with a through hole 431, the inner wall of the electrode tube 42 is provided with a plurality of electrode grooves 421, the horizontal section of each electrode groove 421 is fan-shaped, the central angle of each electrode groove is 20 degrees, electrodes 422 are respectively arranged in the electrode grooves 421, in the embodiment, the number of the electrode grooves 421 is three, and the electrodes 422 arranged in the three electrode grooves 421 are respectively an auxiliary electrode 422, a reference electrode 422 and a working electrode 422.
The electrode 422 is connected with the potentiostat 2 through the connector 41, a plurality of fixing strips 411 matched with the electrode grooves 421 are fixedly connected below the connector 41, the connector 41 is inserted into the electrode grooves 421 of the electrode tube 42 through the fixing strips 411, a conductive rubber strip 412 is arranged on one side of the fixing strips 411 close to the electrode grooves 421, a lead 413 is arranged at the top of the connector 41, the lead 413 is communicated with the conductive rubber strip 412 and the potentiostat 2, a fixing ring 414 is detachably connected at the top of the connector 41, the lead 413 penetrates through the fixing ring 414 to communicate the conductive rubber strip 412 with the potentiostat 2, a sealing element 44 is arranged at the joint of the pipette 4 and the pipette 1, the sealing element 44 is a truncated cone-shaped sealing element 44 with a connecting hole 441 formed in the middle part, the lower end of the pipette 1 penetrates through the sealing element 44 to be communicated with the pipette 4, the signal processing device 3 is one of a notebook computer or a smart phone.
In the second embodiment, referring to fig. 5 and fig. 6, the invention discloses a tubular nozzle type electrochemical sensing device, which includes a pipette 1, a multi-channel potentiostat, a signal processing apparatus 3, and a pipette 4. The suction pipe 4 is connected with the multi-channel potentiostat, the suction pipe 4 is detachably connected with the lower end of the liquid transfer device 1, and the signal processing equipment 3 is connected with the multi-channel potentiostat.
The suction tube 4 comprises a connector 41, an electrode tube 42 and a suction nozzle 43, the electrode tube 42 is detachably connected to the top of the suction nozzle 43, and the connector 41 is detachably connected to the upper side of the electrode tube 42. The suction nozzle 43 is bowl-shaped, the bottom of the suction nozzle is provided with a through hole 431, the inner wall of the electrode tube 42 is provided with a plurality of electrode grooves 421, the horizontal section of each electrode groove 421 is fan-shaped, the central angle of each electrode groove is 36 degrees, electrodes 422 are respectively arranged in the electrode grooves 421, in the embodiment, the number of the electrode grooves 421 is five, and the electrodes 422 arranged in the five electrode grooves 421 are respectively an auxiliary electrode 422, a reference electrode 422 and three working electrodes 422.
The electrode 422 is connected with the multichannel potentiostat through the connector 41, a plurality of fixing strips 411 matched with the electrode grooves 421 are fixedly connected below the connector 41, the connector 41 is inserted into the electrode grooves 421 of the electrode tube 42 through the fixing strips 411, a conductive rubber strip 412 is arranged on one side of the fixing strips 411 close to the electrode grooves 421, a lead 413 is arranged at the top of the connector 41, the lead 413 is communicated with the conductive rubber strip 412 and the multichannel potentiostat, a fixing ring 414 is detachably connected at the top of the connector 41, the lead 413 penetrates through the fixing ring 414 to communicate the conductive rubber strip 412 with the multichannel potentiostat, a sealing element 44 is arranged at the joint of the pipette 4 and the pipette 1, the sealing element 44 is a truncated cone-shaped sealing element 44 with a connecting hole 441 formed in the middle part, the lower end of the pipette 1 penetrates through the sealing element 44 to be communicated with the pipette 4, the signal processing device 3 is one of a notebook computer or a smart phone.
The embodiment three, referring to fig. 9, discloses an array type tubular suction nozzle type electrochemical sensing device, which comprises a multi-channel liquid transfer device 1, a multi-channel potentiostat, a signal processing device 3, a suction pipe 4 frame and a plurality of suction pipes 4, wherein the suction pipe 4 frame is detachably connected to the lower end of the multi-channel liquid transfer device 1, the suction pipes 4 can be detachably connected to the suction pipe 4 frame, the suction pipes 4 are connected with a multi-channel electrochemical workstation, the signal processing device 3 is connected with the multi-channel potentiostat, and in the embodiment, the multi-channel potentiostat is specifically an eight-channel potentiostat.
The suction tube 4 comprises a connector 41, an electrode tube 42 and a suction nozzle 43, the electrode tube 42 is detachably connected to the top of the suction nozzle 43, and the connector 41 is detachably connected to the upper side of the electrode tube 42. The suction nozzle 43 is bowl-shaped, the bottom of the suction nozzle is provided with a through hole 431, the inner wall of the electrode tube 42 is provided with a plurality of electrode grooves 421, the horizontal section of each electrode groove 421 is fan-shaped, the central angle of each electrode groove is 60 degrees, electrodes 422 are respectively arranged in the electrode grooves 421, in the embodiment, the number of the electrode grooves 421 is three, and the electrodes 422 arranged in the three electrode grooves 421 are respectively an auxiliary electrode, a reference electrode and a working electrode.
The electrode 422 is connected with the multichannel potentiostat through the connector 41, a plurality of fixing strips 411 matched with the electrode grooves 421 are fixedly connected below the connector 41, the connector 41 is inserted into the electrode grooves 421 of the electrode tube 42 through the fixing strips 411, a conductive rubber strip 412 is arranged on one side of the fixing strips 411 close to the electrode grooves 421, a lead 413 is arranged at the top of the connector 41, the lead 413 is communicated with the conductive rubber strip 412 and the multichannel potentiostat, a fixing ring 414 is detachably connected at the top of the connector 41, the lead 413 penetrates through the fixing ring 414 to communicate the conductive rubber strip 412 with the multichannel potentiostat, a sealing element 44 is arranged at the joint of the pipette 4 and the pipette 1, the sealing element 44 is a truncated cone-shaped sealing element 44 with a connecting hole 441 formed in the middle part, the lower end of the pipette 1 penetrates through the sealing element 44 to be communicated with the pipette 4, the signal processing device 3 is one of a notebook computer or a smart phone.
The embodiment four discloses a manufacturing method of a tubular suction nozzle type electrochemical sensing device, which comprises the following steps:
the method comprises the following steps: designing models of the connector, the electrode tube and the suction nozzle through modeling software;
step two: preparing a printing material, wherein the printing material is specifically photosensitive resin;
step three: printing the connectors, the electrode tubes and the suction nozzles one by using a 3D printer on a printing material according to the model;
step four: ultrasonically cleaning the printed connector, the electrode tube and the suction nozzle by using ethanol and ultrapure water;
step five: arranging electrodes in the electrode grooves, and arranging a conductive adhesive tape on the surface of the connector;
step six: assembling the connector, the electrode tube and the suction nozzle into a complete suction tube;
step seven: and assembling the pipettor, the potentiostat, the signal processing equipment and the pipette into a complete sensing device.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. A manufacturing method of a tubular suction nozzle type electrochemical sensing device, wherein the sensing device comprises a liquid transfer device (1), a potentiostat (2), a signal processing device (3) and a suction pipe (4), the manufacturing method is characterized in that the suction pipe (4) comprises a connector (41), an electrode pipe (42) and a suction nozzle (43), a plurality of electrode grooves (421) are formed in the inner wall of the electrode pipe (42), a plurality of electrodes (422) are respectively arranged in the electrode grooves (421), and the electrodes (422) are connected with the potentiostat (2) through the connector (41), and the manufacturing method comprises the following steps:
the method comprises the following steps: designing models of the connector (41), the electrode tube (42) and the suction nozzle (43) through modeling software;
step two: preparing a printing material;
step three: printing the connectors (41), the electrode tubes (42) and the suction nozzles (43) one by one on a printing material according to a model by using a 3D printer;
step four: ultrasonically cleaning the printed connector (41), the electrode tube (42) and the suction nozzle (43) by using ethanol and ultrapure water;
step five: arranging an electrode (422) in the electrode groove (421), and arranging a conductive adhesive tape (412) on the surface of the connector (41);
step six: assembling the connector (41), the electrode tube (42) and the suction nozzle (43) into a complete suction tube (4);
step seven: the liquid transfer device (1), the potentiostat (2), the signal processing equipment (3) and the pipette (4) are assembled into a complete sensing device.
2. The manufacturing method of the tubular nozzle type electrochemical sensing device according to claim 1, wherein a plurality of fixing strips (411) matched with the electrode grooves (421) are fixedly connected below the connector (41), a conductive adhesive tape (412) is arranged on one side of the fixing strips (411) close to the electrode grooves (421), and the conductive adhesive tape (412) is connected with the electrodes (422).
3. A method for manufacturing a tubular nozzle type electrochemical sensing device according to claim 2, wherein a conducting wire (413) is arranged on the top of the connector (41), and the conducting wire (413) is communicated with the conductive rubber strip (412) and the potentiostat (2).
4. A method for manufacturing a tubular nozzle type electrochemical sensing device according to claim 3, wherein a fixing ring (414) is detachably connected to the top of the connector (41), and the conducting wire (413) passes through the fixing ring (414) to connect the conducting rubber strip (412) with the potentiostat (2).
5. A method of manufacturing a tubular nozzle-type electrochemical sensing device according to claim 1, characterized in that a sealing member (44) is provided at the junction of the pipette (4) and the pipette (1).
6. The manufacturing method of the tubular nozzle type electrochemical sensing device according to claim 5, wherein the sealing member (44) is a circular truncated cone-shaped sealing member (44) with a connecting hole (441) formed in the middle, and the lower end of the liquid transfer device (1) is communicated with the suction pipe (4) through the sealing member (44).
7. The method of claim 1, wherein the electrode cell (421) has a fan-shaped horizontal cross-section, and the central angle of the electrode cell is 20 ° to 60 °.
8. A method for manufacturing a tubular nozzle-type electrochemical sensor device according to claim 1, wherein the nozzle (43) is bowl-shaped and has a through hole (431) at the bottom.
9. A method for manufacturing a tubular nozzle-type electrochemical sensing device according to claim 1, wherein the signal processing device (3) is one of a laptop or a smartphone.
10. The method of claim 1, wherein the printing material is a photosensitive resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011124854.2A CN112285177A (en) | 2020-10-20 | 2020-10-20 | Manufacturing method of tubular suction nozzle type electrochemical sensing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011124854.2A CN112285177A (en) | 2020-10-20 | 2020-10-20 | Manufacturing method of tubular suction nozzle type electrochemical sensing device |
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| CN112285177A true CN112285177A (en) | 2021-01-29 |
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| CN202011124854.2A Pending CN112285177A (en) | 2020-10-20 | 2020-10-20 | Manufacturing method of tubular suction nozzle type electrochemical sensing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040182707A1 (en) * | 2002-10-16 | 2004-09-23 | Cellectricon Ab | Nanoelectrodes and nanotips for recording transmembrane currents in a plurality of cells |
| US20120091008A1 (en) * | 2009-05-05 | 2012-04-19 | Medermica Limited | Ph measurement device |
| CN107091875A (en) * | 2017-06-28 | 2017-08-25 | 窦晓鸣 | A kind of hand-held aspiration-type electrochemical detection device for automatically processing sample |
| US20190046092A1 (en) * | 2017-06-22 | 2019-02-14 | Arizona Board Of Regents On Behalf Of Arizona State University | Three-dimensionally printed blood glucose sensing device and fabrication method |
-
2020
- 2020-10-20 CN CN202011124854.2A patent/CN112285177A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040182707A1 (en) * | 2002-10-16 | 2004-09-23 | Cellectricon Ab | Nanoelectrodes and nanotips for recording transmembrane currents in a plurality of cells |
| US20120091008A1 (en) * | 2009-05-05 | 2012-04-19 | Medermica Limited | Ph measurement device |
| US20190046092A1 (en) * | 2017-06-22 | 2019-02-14 | Arizona Board Of Regents On Behalf Of Arizona State University | Three-dimensionally printed blood glucose sensing device and fabrication method |
| CN107091875A (en) * | 2017-06-28 | 2017-08-25 | 窦晓鸣 | A kind of hand-held aspiration-type electrochemical detection device for automatically processing sample |
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