Fabrication method of electrochemical sensor array for evaluating environmental free radical peroxidation capacity
A production method and free radical technology, applied in the direction of electrochemical variables of materials, etc., can solve the problems of harsh detection conditions, restricting the research, monitoring and treatment of environmental persistent free radicals, expensive electron paramagnetic resonance equipment, etc., and achieve simple processing. Effect
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Embodiment 1
[0028]Coat the carbon nanomaterials on the screen-printed electrode, and dry to prepare the carbon nano-based electrode; drop-coat 4.5 μL of lecithin with a concentration of 10 mg / mL and 4.5 μL of 5 mg / mL cholesteryl cyclohexane on the surface of the above-mentioned carbon nano-based electrode. Alkanes, protected from light in a vacuum dryer for 1 hour, after drying, place in 0.1mol / L KCl solution, scan the potential range of -0.2V to be stable by cyclic voltammetry, put it in a vacuum bag after drying, vacuumize, and store at 4°C; Add eluent to the contaminated soil to be tested, and put it in the sunlight to irradiate the reaction, stop the light, take the supernatant and put it in a colorimetric tube, and add 2mL of NaH with a concentration of 0.75mol / L 2 PO 4 and 2 mL of Na with a concentration of 0.75 mol / L 2 HPO 4 Buffer solution; put the carbon nano-based electrode, incubate with a plug at a constant temperature of 37.5 ° C to peroxidize the lipid of the double-layer ...
Embodiment 2
[0030] Coat the carbon nanomaterials on the screen-printed electrode, and dry to obtain the carbon nano-based electrode; drop-coat 5.5 μL of 10 mg / mL lecithin and 5.5 μL of 5 mg / mL cholesteryl cyclohexane on the surface of the above-mentioned carbon nano-based electrode. Alkanes, protected from light in a vacuum dryer for 1.5 hours, dried and placed in 0.1mol / L KCl solution, 1.0V potential range was scanned by cyclic voltammetry until stable, after drying, placed in a vacuum bag, vacuumed, and stored at 4°C; Add eluent to the contaminated soil to be tested, and put it in the sunlight to irradiate the reaction, stop the light, take the supernatant and put it in a colorimetric tube, and add 3mL of NaH with a concentration of 0.75mol / L 2 PO 4 and 3 mL of Na at a concentration of 0.75 mol / L 2 HPO 4 Buffer solution; put the carbon nano-based electrode, incubate with a plug at a constant temperature of 37.5°C to peroxidize the lipid of the double-layer phospholipid membrane of the...
Embodiment 3
[0032] Coating carbon nanomaterials on screen-printed electrodes and drying them to obtain carbon nano-based electrodes; drip-coating 5 μL of lecithin with a concentration of 10 mg / mL and 5 μL of cholesteryl cyclohexane with a concentration of 5 mg / mL on the surface of the above-mentioned carbon nano-based electrodes, Protected from light in a vacuum dryer for 1.2 hours, after drying, put it in 0.1mol / L KCl solution, scan the potential range of 0.5V to be stable by cyclic voltammetry, put it in a vacuum bag after drying, vacuumize, and store at 4°C; Add eluent to the test contaminated soil, and put it in the sunlight to irradiate the reaction, stop the light, take the supernatant and put it in a colorimetric tube, and add 2.5mL of NaH with a concentration of 0.75mol / L 2 PO 4 and 2.5 mL of Na with a concentration of 0.75 mol / L 2 HPO 4 Buffer solution; put the carbon nano-based electrode, incubate with a plug at a constant temperature of 37.5°C to peroxidize the lipid of the d...
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