Preparation method for tetracycline antibiotic electrochemiluminescence sensor, and application
A technology of electrochemistry and antibiotics, which is applied in the direction of chemiluminescence/bioluminescence, analysis by causing chemical reactions of materials, and electrochemical variables of materials, etc., which can solve the problems of decreased sensitivity, stability and reproducibility of electrochemical sensors, Limit the application of molecularly imprinted membranes and other problems, achieve excellent electron transfer capabilities, convenient operation, and reduce detection costs
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Embodiment 1
[0030] Example 1 Preparation of NiFeN-nanoarray
[0031] (1) Use dilute hydrochloric acid, absolute ethanol and deionized disposable electrode for ultrasonic cleaning to remove the oxide layer and surface impurities of the disposable electrode;
[0032] (2) Weigh 1 mmol Ni(NO 3 ) 2 and Fe(NO 3 ) 3 mixture and 3 mmol urea CO(NH 2 ) 2 , put it into a 50mL beaker, add 30mL deionized water and stir until clear, then transfer to a 50mL polytetrafluoroethylene reactor;
[0033] (3) Put the disposable disposable electrode treated in step (1) into the solution in the reaction kettle in step (2), and react at a temperature of 100°C for 12 hours to prepare nickel-iron bimetallic layered hydrogen Oxide nanosheet array precursor electrode;
[0034] (4) Insert the nickel-iron bimetallic layered hydroxide nanosheet array precursor electrode obtained in step (3) into the phosphate buffer solution PBS containing dopamine and ammonium persulfate, and react at a temperature of 20 °C for ...
Embodiment 2
[0036] Example 2 Preparation of NiFeN-nanoarray
[0037] (1) Use dilute hydrochloric acid, absolute ethanol and deionized disposable electrode for ultrasonic cleaning to remove the oxide layer and surface impurities of the disposable electrode;
[0038] (2) Weigh 2 mmol Ni(NO 3 ) 2 and Fe(NO 3 ) 3 mixture and 6 mmol urea CO(NH 2 ) 2 , put it into a 50mL beaker, add 30mL deionized water and stir until clear, then transfer to a 50mL polytetrafluoroethylene reactor;
[0039] (3) Put the disposable disposable electrode treated in step (1) into the solution in the reaction kettle in step (2), and react at a temperature of 110°C for 11 hours to prepare nickel-iron bimetallic layered hydrogen Oxide nanosheet array precursor electrode;
[0040] (4) Insert the nickel-iron bimetallic layered hydroxide nanosheet array precursor electrode obtained in step (3) into the phosphate buffer solution PBS containing dopamine and ammonium persulfate, and react at a temperature of 30 °C for ...
Embodiment 3
[0042] Example 3 Preparation of NiFeN-nanoarray
[0043] (1) Use dilute hydrochloric acid, absolute ethanol and deionized disposable electrode for ultrasonic cleaning to remove the oxide layer and surface impurities of the disposable electrode;
[0044] (2) Weigh 3 mmol Ni(NO 3 ) 2 and Fe(NO 3 ) 3 mixture and 9 mmol urea CO(NH 2 ) 2 , put it into a 50mL beaker, add 30mL deionized water and stir until clear, then transfer to a 50mL polytetrafluoroethylene reactor;
[0045] (3) Put the disposable disposable electrode treated in step (1) into the solution in the reaction kettle in step (2), and react at a temperature of 130°C for 9 hours to prepare a nickel-iron double metal nitride nanometer Sheet array precursor electrode;
[0046] (4) Insert the nickel-iron bimetallic layered hydroxide nanosheet array precursor electrode obtained in step (3) into the phosphate buffer solution PBS containing dopamine and ammonium persulfate, and react at a temperature of 40 °C for 6 hour...
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