CN105738442A - Preparation method for magnetic nanoparticle modified carbon fiber microelectrode and application thereof - Google Patents
Preparation method for magnetic nanoparticle modified carbon fiber microelectrode and application thereof Download PDFInfo
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Abstract
The invention discloses a preparation method for a magnetic nanoparticle modified carbon fiber microelectrode. The preparation method comprises the following steps of: firstly, adopting the cyclic voltammetry for activating the surface of the carbon fiber; utilizing the magnetic nanoparticle to modify the carbon fiber; lastly, preparing the magnetic nanoparticle/carbon fiber microelectrode. The microelectrode prepared according to the preparation method provided by the invention has the advantages of stable performance, high sensitivity, simple process and low cost; according to the preparation method provided by the invention, the magnetic nanoparticle is adopted for constructing a decorative layer and the electronic transferring performance of the microelectrode is greatly increased, so that the sensitivity and limit of detection of the sensor are promoted; the microelectrode prepared according to the preparation method can be used for effectively and quickly performing in-situ detection on chloramphenicol, is high in anti-interference property, is excellent in repeatability and can be applied to different environmental samples.
Description
Technical field
The invention belongs to electrochemical sensor field, the preparation method being specifically related to a kind of magnetic nano-particle/carbon fiber microelectrodes with micro pipette tips for detecting chloromycetin.
Background technology
Chloromycetin is a kind of broad ectrum antibiotic, has good antibacterial effectiveness and stable in properties, the feature such as cheap and easy to get, is applied to some prevention and treatment of diseases of the mankind.Chloromycetin generally enters natural water from pharmaceutical wastewater, sanitary sewage and aquaculture waste water, it is easy to human body and environment are caused irreversible impact.Therefore, the tool of the chloromycetin in quantitative assay environment is of great significance.At present, the method measuring chloromycetin has an electrochemical process, mass spectrography and chromatography etc., wherein mass spectrography, and chromatography equipment costly and time-consuming, additionally needs professional's operation, is not suitable for quick detection；Electrochemical process is little due to its volume, and equipment price is cheap, easy to use, highly sensitive, the advantage such as good stability and real-time in-situ detection and paid close attention to widely.
It is said that in general, the concentration that chloromycetin is in environmental sample is relatively low, limit the electrochemical sensor development to chloromycetin detection research.Therefore, Development of Novel electrochemical sensor becomes the trend of chloromycetin electrochemical methods.Carbon fiber microelectrodes with micro pipette tips is less than conventional electrodes area, electric current density big, has good mechanical strength and pliability, easily makes, has excellent electron transmission performance, be used widely at electrochemistry Disciplinary Frontiers.Magnetic nano-particle is a kind of metal-oxide, has specific surface area big, the feature such as good biocompatibility and good electric conductivity, can be effectively improved the performance of electrode for preparing modified electrode.Based on above theory, in conjunction with the performance of magnetic nano-particle and carbon fiber microelectrodes with micro pipette tips, prepare magnetic nano-particle Modified carbon fiber electrode, the two advantage can be given full play to, improve the electric conductivity of sensor, catalytic performance, thus realizing the highly sensitive detection of trace amount chloramphenicol in environmental sample.
Summary of the invention
Solve the technical problem that: the present invention the purpose preparation method that is to provide a kind of magnetic nano-particle modifying carbon fibers microelectrode, the electrochemical sensor that the method obtains is highly sensitive, good stability, it is possible to quickly detect the concentration of chloromycetin.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is:
The preparation method of the carbon fiber microelectrodes with micro pipette tips that a kind of magnetic nano-particle is modified, comprises the steps:
Step 1, adopts cyclic voltammetry that carbon fiber is carried out surface active；Carbon fiber is carried out activation and can remove carbon fiber surface impurity to reach cleaning action on the one hand, carbon fiber surface grafting active function groups can also be made on the other hand, in order to follow-up modification step；
Step 2, modifies the carbon fiber after activation with magnetic nano-particle；After adopting magnetic nano-particle to modify on carbon fiber the carbon fiber electrode that obtains electrolyte mutually in and electrolyte between electric charge transfer, ion-transfer, ion mass transport process all increase significantly with behavior, the detection contributing to reduction substrate is limit；
Step 3, takes out the carbon fiber that single magnetic nano-particle is modified under the microscope, adopts conductive silver glue by carbon fiber and 1mm copper wire bonding, the carbon fiber other end is exposed 0.8cm simultaneously, prepare into carbon fiber microelectrodes with micro pipette tips.
Wherein, in step 1, adopt cyclic voltammetry that carbon fiber carries out surface active and specifically refer to the carbon fiber after by supersound washing and be placed in concentration to be 0.1M, pH be in the phosphate buffer solution of 7.0 and be circulated voltammetry scanning, wherein, the potential range of described cyclic voltammetry scanning is 0～2.5V.
Wherein, in step 1, the diameter of described carbon fiber microelectrodes with micro pipette tips is 7 μm.
Wherein, in step 2, the concrete operation step that carbon fiber employing magnetic nano-particle after activation is modified is: be configured to mixed solution by soluble in water successively to the Ferric Chloride Hydrated of certain mass, sodium acetate and Polyethylene Glycol, it is placed in autoclave together with the carbon fiber after activation after magnetic stirring, seal, at 200～220 DEG C, heated at constant temperature 20～30h, is subsequently cooled to room temperature, and the black product obtained is the carbon fiber modified with magnetic nano-particle.
Magnetic nano-particle is modified carbon fiber surface by the inventive method, and magnetic nano-particle belongs to metal-oxide, has stronger electric conductivity and bio-compatibility, and the antibiotic responses such as chloromycetin is very sensitive rapidly.
Wherein, described Ferric Chloride Hydrated is 1: 3 with the mass ratio of sodium acetate.
The carbon fiber microelectrodes with micro pipette tips that above-mentioned preparation method obtains is applied to the chloromycetin in situ detection environmental sample.
The present invention adopt magnetic nano-particle to modify after carbon fiber as electrode material and be connected with copper wire by conductive silver glue and obtain carbon fiber microelectrodes with micro pipette tips, in this, as working electrode, in conjunction with reference electrode, auxiliary electrode and phosphoric acid electrolyte, build the electrochemical sensor for detecting chloromycetin.
The using method of carbon fiber microelectrodes with micro pipette tips of the present invention: carbon fiber microelectrodes with micro pipette tips be correctly connected on electrochemical workstation with reference electrode with together with electrode, to form the electrochemical sensor based on modifying carbon fibers microelectrode；Three-electrode system is immersed in the sample containing chloromycetin, detected by differential pulse cyclic voltammetry, the scanning current potential of this differential pulse detection is-1.0～0V, every time after scanning, it is placed in phosphate buffer solution by electrochemical sensor to be circulated and is scanned up to without behind peak, clean with deionized water and dry, reuse.
Beneficial effect: compared to prior art, the preparation method of the present invention adopts carbon fiber to be electrode base materials, first carbon fiber surface is activated, then with magnetic nano-particle, carbon fiber is modified again, finally obtaining the carbon fiber microelectrodes with micro pipette tips that magnetic nano-particle is modified, the inventive method technique is simple, and the carbon fiber microelectrodes with micro pipette tips obtained is sensitive to the concentration-response of chloromycetin, effectively and rapidly chloromycetin can being detected, detection limit is low, sensitivity good, capacity of resisting disturbance is strong.The chloromycetin aspect that the carbon fiber microelectrodes with micro pipette tips that the present invention obtains detects in environmental sample in position has broad prospects.
Accompanying drawing explanation
Fig. 1 is the SEM figure of naked carbon fiber in the embodiment of the present invention 1；
Fig. 2 is the SEM figure of magnetic nano-particle modifying carbon fibers in the embodiment of the present invention 1；
Fig. 3 is that in the embodiment of the present invention 1, magnetic nano-particle modifying carbon fibers microelectrode detects the CV oxidation peak current value of variable concentrations chloromycetin and the matched curve of chloramphenicol concentration；
Fig. 4 is the SEM figure of magnetic nano-particle modifying carbon fibers in the embodiment of the present invention 2；
Fig. 5 is the SEM figure of magnetic nano-particle modifying carbon fibers in the embodiment of the present invention 3.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical scheme is described in detail.
Embodiment 1
The preparation method of the carbon fiber microelectrodes with micro pipette tips that a kind of magnetic nano-particle is modified, comprises the steps:
Step 1, a branch of carbon fiber is sequentially placed in dehydrated alcohol and ultra-pure water and carries out supersound washing, carbon fiber after washing is connected with copper wire conductive silver glue and makes carbon fiber electrode, the carbon fiber electrode obtained being placed in concentration to be 0.1M, pH be in the phosphate buffer solution of 7.0 adopts cyclic voltammetry to carry out surface active, scanning potential range is 0～2.5V, is taken off by the carbon fiber after activation and is placed in autoclave；This step can remove carbon fiber surface impurity on the one hand to reach cleaning action, carbon fiber surface grafting active function groups can be made on the other hand, so that follow-up modification step, so that the stability of electrode entirety, electric conductivity and electron transfer speed are all improved；
Step 2, adds 1.0g Ferric Chloride Hydrated (FeCl in 50mL aqueous solution3·6H2O), stirring and dissolving, 3.0g sodium acetate and 1.0g Polyethylene Glycol is added again in aqueous solution, magnetic agitation 30min, pours in the autoclave of step 1 by mixed solution, seals, heated at constant temperature 25h at 200 DEG C, being subsequently cooled to room temperature, the black product ethanol purge obtained for several times, dries 6h in 60 DEG C of baking ovens；
Step 3, takes out the carbon fiber that single magnetic nano-particle is modified under the microscope, adopts conductive silver glue by bonding to carbon fiber and 1mm copper wire, the carbon fiber other end is exposed 0.8cm simultaneously, prepare into carbon fiber microelectrodes with micro pipette tips.
Carbon fiber microelectrodes with micro pipette tips step 3 obtained correctly is connected on electrochemical workstation with reference electrode with together with electrode, to form the electrochemical sensor based on modifying carbon fibers microelectrode.
Three-electrode system is immersed in the phosphoric acid electrolyte of 0.1,0.2,0.3,0.5,0.8,1.0 μMs of variable concentrations chloromycetin, differential pulse cyclic voltammetry is utilized to scan, scanning current potential is-1.0～0V, the peak flow valuve taking parachlorophenol under each concentration does matched curve with parachlorophenol concentration, as shown in Figure 3.Being analyzed the carbon fiber microelectrodes with micro pipette tips of the magnetic nano-particle modification that embodiment 1 obtains by Fig. 3 is 0.1～1.0 μM to the linear detection range of chloromycetin；The matched curve of current value and chloramphenicol concentration is: I (chloromycetin)=0.90c (chloromycetin)+1.54, R2=0.9917；Sensitivity is 0.90, and detection is limited to 0.033 μM.
Carbon fiber scanning electron microscope result before and after embodiment 1 modification is respectively as shown in Figure 1 and Figure 2.As can be seen from Figure 1 naked carbon fiber surface has impurity, rough, carbon fiber surface after activation is smooth as can be seen from Figure 2, and the magnetic nano-particle uniform particle sizes of area load, magnetic nano-particle distribution comparatively disperses, magnetic nano-particle is successfully modified carbon fiber surface by proof above method, is conducive to improving electrode specific surface area, carries high catalytic activity.
By the properties of embodiment 1 gained modified electrode compared with other electrodes existing, concrete outcome is in Table 1.
Table 1: the properties of several modified electrode voltammetric determination parachlorophenols compares
| Electrode | Detection limit (M) | Sensitivity (μ A μM-1) |
| Multi-walled carbon nano-tubes-molecular engram complex modified glassy carbon electrode | 1.0×10-10 | 9.8 |
| Au-nitrogen-doped graphene nanometer sheet modified glassy carbon electrode | 5.9×10-7 | 2.13 |
| Activated carbon fiber microelectrode | 7×10-8 | 0.269 |
| The modifying carbon fibers microelectrode that embodiment 1 is obtained | 3.3×10-8 | 0.90 |
Wherein, Yang et al. adopts drop-coating to modify upper multi-walled carbon nano-tubes-molecular engram complex modified glassy carbon electrode.Source: Electrochemicalsensorforchloramphenicolbasedonnovelmulti walledcarbonnanotubesmolecularlyimprintedpolymer, BiosensorsandBioelectronics, 2015,64:416-422.Borowiec et al. prepares Au-nitrogen-doped graphene nanosheet composite material and adopts drop-coating to modify on glass-carbon electrode.Source: Synthesisofnitrogen-dopedgraphenenanosheetsdecoratedwith goldnanoparticlesasanimprovedsensorforelectrochemicaldet erminationofchloramphenicol, ElectrochimicaActa, 2013,99:138-144.L.Agui et al. utilize electrochemical method activated carbon fiber and for preparing carbon fiber electrode.Source: Voltammetricdeterminationofchloramphenicolinmilkatelectr ochemicallyactivatedcarbonfibremicroelectrodes, AnalyticaChimicaActa, 2002,461 (1): 65-73.
From table 1, compared with existing modified electrode, embodiment 1 the electrode obtained has of a relatively high sensitivity and relatively low detection limit.
Embodiment 2
The preparation method of the carbon fiber microelectrodes with micro pipette tips that a kind of magnetic nano-particle is modified, comprises the steps:
Step 1, a branch of carbon fiber is sequentially placed in dehydrated alcohol and ultra-pure water and carries out supersound washing, carbon fiber after washing is connected with copper wire conductive silver glue and makes carbon fiber electrode, the carbon fiber electrode obtained being placed in concentration to be 0.1M, pH be in the phosphate buffer solution of 7.0 adopts cyclic voltammetry to carry out surface active, scanning potential range is 0～2.5V, is taken off by the carbon fiber after activation and is placed in autoclave；
Step 2, adds 0.5g Ferric Chloride Hydrated (FeCl in 50mL aqueous solution3·6H2O), stirring and dissolving, 1.5g sodium acetate and 1.0g Polyethylene Glycol is added again in aqueous solution, magnetic agitation 30min, pours in the autoclave of step 1 by mixed solution, seals, heated at constant temperature 20h at 220 DEG C, being subsequently cooled to room temperature, the black product ethanol purge obtained for several times, dries 6h in 60 DEG C of baking ovens；
Step 3, takes out the carbon fiber that single magnetic nano-particle is modified under the microscope, adopts conductive silver glue by bonding to carbon fiber and 1mm copper wire, the carbon fiber other end is exposed 0.8cm simultaneously, prepare into carbon fiber microelectrodes with micro pipette tips.
Carbon fiber microelectrodes with micro pipette tips step 3 obtained correctly is connected on electrochemical workstation with reference electrode with together with electrode, to form the electrochemical sensor based on modifying carbon fibers microelectrode.
Three-electrode system is immersed in the phosphoric acid electrolyte of 0.1,0.2,0.3,0.5,0.8,1.0 μMs of variable concentrations chloromycetin, differential pulse cyclic voltammetry is utilized to scan, scanning current potential is-1.0～0V, and the peak flow valuve taking parachlorophenol under each concentration does matched curve with parachlorophenol concentration.The linear detection range of chloromycetin is 0.1～1.0 μM by the carbon fiber microelectrodes with micro pipette tips that the magnetic nano-particle that this embodiment obtains is modified；The matched curve of current value and chloramphenicol concentration is: I (chloromycetin)=0.88c (chloromycetin)+1.59, R2=0.9967；Sensitivity is 0.88, and detection is limited to 0.03 μM.
Carbon fiber scanning electron microscope (SEM) photograph after embodiment 2 modification is as shown in Figure 4, magnetic nano-particle successfully being modified by above method carbon fiber surface as seen from Figure 4, and magnetic nano-particle particle diameter is less, particle size distribution slightly shows uneven, be conducive to improving electrode specific surface area, carry high catalytic activity.
Embodiment 3
The preparation method of the carbon fiber microelectrodes with micro pipette tips that a kind of magnetic nano-particle is modified, comprises the steps:
Step 1, a branch of carbon fiber is sequentially placed in dehydrated alcohol and ultra-pure water and carries out supersound washing, carbon fiber after washing is connected with copper wire conductive silver glue and makes carbon fiber electrode, the carbon fiber electrode obtained being placed in concentration to be 0.1M, pH be in the phosphate buffer solution of 7.0 adopts cyclic voltammetry to carry out surface active, scanning potential range is 0～2.5V, is taken off by the carbon fiber after activation and is placed in autoclave；
Step 2, adds 1.2g Ferric Chloride Hydrated (FeCl in 50mL aqueous solution3·6H2O), stirring and dissolving, 3.6g sodium acetate and 1.0g Polyethylene Glycol is added again in aqueous solution, magnetic agitation 30min, pours in the autoclave of step 1 by mixed solution, seals, heated at constant temperature 30h at 200 DEG C, being subsequently cooled to room temperature, the black product ethanol purge obtained for several times, dries 6h in 60 DEG C of baking ovens；
Step 3, takes out the carbon fiber that single magnetic nano-particle is modified under the microscope, adopts conductive silver glue by bonding to carbon fiber and 1mm copper wire, the carbon fiber other end is exposed 0.8cm simultaneously, prepare into carbon fiber microelectrodes with micro pipette tips.
Carbon fiber microelectrodes with micro pipette tips step 3 obtained correctly is connected on electrochemical workstation with reference electrode with together with electrode, to form the electrochemical sensor based on modifying carbon fibers microelectrode.
Three-electrode system is immersed in the phosphoric acid electrolyte of 0.1,0.2,0.3,0.5,0.8,1.0 μMs of variable concentrations chloromycetin, differential pulse cyclic voltammetry is utilized to scan, scanning current potential is-1.0～0V, and the peak flow valuve taking parachlorophenol under each concentration does matched curve with parachlorophenol concentration.The linear detection range of chloromycetin is 0.1～1.0 μM by the carbon fiber microelectrodes with micro pipette tips that the magnetic nano-particle that this embodiment obtains is modified；The matched curve of current value and chloramphenicol concentration is: I (chloromycetin)=0.83c (chloromycetin)+1.57, R2=0.9902；Sensitivity is 0.83, and detection is limited to 0.03 μM.
Carbon fiber scanning electron microscope (SEM) photograph after embodiment 3 modification is as shown in Figure 5, successfully magnetic nano-particle is modified by above method carbon fiber surface and magnetic nano-particle uniform particle sizes as seen from Figure 5, has slight agglomeration, be conducive to improving electrode specific surface area, carry high catalytic activity.
The particle diameter of the magnetic nano-particle that different amounts of Ferric Chloride Hydrated prepares is different, causes the specific surface area difference of material and magnetic Nano ion reunion degree different.The magnetic nano-particle that specific surface area is relatively large and reunion degree is relatively light is modified on carbon fiber, and the transmission capacity of electrodic electron, electric conductivity and response current ability are all significantly increased, and then electrode catalyst performance is also remarkably reinforced.
Obviously, above-described embodiment is only for clearly demonstrating example of the present invention, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here without also giving exhaustive to all of embodiment, these changes extended out or variation are also among protection scope of the present invention.
Claims (7)
1. the preparation method of the carbon fiber microelectrodes with micro pipette tips modified with magnetic nano-particle, it is characterised in that comprise the steps:
Step 1, adopts cyclic voltammetry that carbon fiber is carried out surface active；
Step 2, modifies the carbon fiber after activation with magnetic nano-particle；
Step 3, carbon fiber step 2 obtained with conductive silver glue and copper wire bonding, obtain required carbon fiber microelectrodes with micro pipette tips.
2. the preparation method of the carbon fiber microelectrodes with micro pipette tips that magnetic nano-particle according to claim 1 is modified, it is characterized in that, in step 1, adopt cyclic voltammetry that carbon fiber carries out surface active to specifically refer to the carbon fiber after by supersound washing to be placed in concentration be 0.1M, pH be 7.0 phosphate buffer solution in be circulated voltammetry scanning, wherein, the potential range of described cyclic voltammetry scanning is 0～2.5V.
3. the preparation method of magnetic nano-particle modifying carbon fibers microelectrode according to claim 1, it is characterised in that in step 3, the diameter of described carbon fiber microelectrodes with micro pipette tips is 7 μm.
4. the preparation method of the carbon fiber microelectrodes with micro pipette tips that magnetic nano-particle according to claim 1 is modified, it is characterized in that, in step 2, the concrete operation step that carbon fiber employing magnetic nano-particle after activation is modified is: be configured to mixed solution by soluble in water successively to the Ferric Chloride Hydrated of required mass ratio, sodium acetate and Polyethylene Glycol, it is placed in autoclave together with the carbon fiber after activation after magnetic agitation, seal, heated at constant temperature 20～30h at 200～220 DEG C, being cooled to room temperature, products therefrom is magnetic nano-particle modifying carbon fibers.
5. the preparation method of the carbon fiber microelectrodes with micro pipette tips that magnetic nano-particle according to claim 4 is modified, it is characterised in that the addition mass ratio of described Ferric Chloride Hydrated and sodium acetate is 1: 3.
6. the preparation method of the carbon fiber microelectrodes with micro pipette tips that magnetic nano-particle according to claim 4 is modified, it is characterised in that the addition quality of described Polyethylene Glycol is 1g.
7. the carbon fiber microelectrodes with micro pipette tips that preparation method described in claim 1 obtains detects the application of chloromycetin in environmental sample in position.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106770574A (en) * | 2017-01-16 | 2017-05-31 | 华南理工大学 | A kind of multi-walled carbon nano-tubes modifying carbon fibers microelectrode and preparation method thereof |
| CN108195904A (en) * | 2017-12-26 | 2018-06-22 | 延边大学 | A kind of micro-extraction/microelectrode double function probe and its preparation method and application |
| CN110877902A (en) * | 2019-09-09 | 2020-03-13 | 华北水利水电大学 | Preparation method and application of flexible and high-selectivity non-enzymatic uric acid electrode carbon fiber membrane of self-supporting carbon fiber |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899234A (en) * | 2009-12-16 | 2010-12-01 | 南京航空航天大学 | Method for preparing glucosyl mesoporous carbon-coated ZnFeO used for electromagnetic wave absorbing coating |
| CN102358910A (en) * | 2011-11-03 | 2012-02-22 | 东南大学 | Chemiluminescence detection method for copy number polymorphism based on magnetic separation and primer extension |
| CN103194222A (en) * | 2013-04-18 | 2013-07-10 | 扬州大学 | Preparation method and application of Fe3O4/ZnO composite nano-particles |
| CN103274396A (en) * | 2013-06-20 | 2013-09-04 | 电子科技大学 | Preparation method of grapheme and ferriferrous oxide composite nanometer material |
| CN104047071A (en) * | 2014-07-07 | 2014-09-17 | 扬州大学 | Preparation method for magnetic active carbon fibers |
-
2016
- 2016-03-25 CN CN201610177537.4A patent/CN105738442A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899234A (en) * | 2009-12-16 | 2010-12-01 | 南京航空航天大学 | Method for preparing glucosyl mesoporous carbon-coated ZnFeO used for electromagnetic wave absorbing coating |
| CN102358910A (en) * | 2011-11-03 | 2012-02-22 | 东南大学 | Chemiluminescence detection method for copy number polymorphism based on magnetic separation and primer extension |
| CN103194222A (en) * | 2013-04-18 | 2013-07-10 | 扬州大学 | Preparation method and application of Fe3O4/ZnO composite nano-particles |
| CN103274396A (en) * | 2013-06-20 | 2013-09-04 | 电子科技大学 | Preparation method of grapheme and ferriferrous oxide composite nanometer material |
| CN104047071A (en) * | 2014-07-07 | 2014-09-17 | 扬州大学 | Preparation method for magnetic active carbon fibers |
Non-Patent Citations (3)
| Title |
|---|
| FEI JIANG 等: "Fe3O4 nanoparticles-wrapped carbon nanofibers as high-performance anode for lithium-ion battery", 《JOURNAL OF NANOPARTICLE RESEARCH》 * |
| L.AGÜÍ 等: "Voltammetric determination of chloramphenicol in milk at electrochemically activated carbon fibre microelectrodes", 《ANALYTICA CHIMICA ACTA》 * |
| LIANGYUN YU 等: "Electrochemical detection of nitrate in PM2.5 with a copper-modfied carbon fiber micro-disk electrode", 《TALANTA》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106770574A (en) * | 2017-01-16 | 2017-05-31 | 华南理工大学 | A kind of multi-walled carbon nano-tubes modifying carbon fibers microelectrode and preparation method thereof |
| CN106770574B (en) * | 2017-01-16 | 2023-10-03 | 华南理工大学 | Multi-wall carbon nanotube modified carbon fiber microelectrode and preparation method thereof |
| CN108195904A (en) * | 2017-12-26 | 2018-06-22 | 延边大学 | A kind of micro-extraction/microelectrode double function probe and its preparation method and application |
| CN110877902A (en) * | 2019-09-09 | 2020-03-13 | 华北水利水电大学 | Preparation method and application of flexible and high-selectivity non-enzymatic uric acid electrode carbon fiber membrane of self-supporting carbon fiber |
| CN110877902B (en) * | 2019-09-09 | 2022-11-01 | 华北水利水电大学 | Preparation method and application of flexible and high-selectivity non-enzymatic uric acid electrode carbon fiber membrane of self-supporting carbon fiber |
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