A preparation method of a parathion sensor based on two-dimensional nanomaterials
A technology of two-dimensional nanomaterials and parathion, which is applied to the analysis of materials, electrochemical variables of materials, and material analysis through electromagnetic means. It can solve the problems of cumbersome process and low yield, and achieve simple preparation, low cost, and Effect of improving resonance energy transfer capability
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Embodiment 1
[0040] Example 1 Co-TiO 2 / MoS 2 preparation of
[0041] (1) Add 0.6 g of molybdenum disulfide powder and 0.2 mmol of cobalt salt to 3 mL of n-butyllithium solution, and stir for 12 hours under nitrogen protection at 60 °C to obtain the reacted solution;
[0042] (2) Wash the reacted solution in step (1) with a non-polar solvent, and then perform ultrasonic treatment in a water bath at 60 °C. After the treatment, wash the treated solution with a non-polar solvent, and dry it in vacuum to obtain cobalt Intercalated molybdenum disulfide nanomaterials;
[0043] (3) Add 500 mg of cobalt-intercalated molybdenum disulfide nanomaterials prepared in step (2) into 5 mL of tetrabutyl titanate, stir for 1 hour, slowly add 0.5 mL of hydrofluoric acid while stirring, and then Reaction in the reactor at 160°C for 18 hours;
[0044] (4) The reaction product obtained in step (3) was centrifuged and washed three times with ultrapure water and absolute ethanol, and then vacuum-dried at 50 °...
Embodiment 2
[0049] Example 2 Co-TiO 2 / MoS 2 preparation of
[0050] (1) Add 0.6 g of molybdenum disulfide powder and 1.0 mmol of cobalt salt into 5 mL of n-butyllithium solution, and stir for 24 hours under nitrogen protection at 30 °C to obtain the reacted solution;
[0051] (2) Wash the reacted solution in step (1) with a non-polar solvent, and then perform ultrasonic treatment in a water bath at 30 °C. After the treatment, wash the treated solution with a non-polar solvent, and dry it in vacuum to obtain cobalt Intercalated molybdenum disulfide nanomaterials;
[0052] (3) Add 200 mg of cobalt-intercalated molybdenum disulfide nanomaterials prepared in step (2) into 5 mL of tetrabutyl titanate, stir for 1 hour, then slowly add 0.6 mL of hydrofluoric acid while stirring, and then Reaction in the reactor at 180°C for 20 hours;
[0053] (4) The reaction product obtained in step (3) was centrifuged and washed three times with ultrapure water and absolute ethanol, and then vacuum-dried ...
Embodiment 3
[0058] Example 3 Preparation method of parathion sensor
[0059] (1) ITO conductive glass with a width of 1 cm and a length of 4 cm was used as a working electrode, and 8 µL of Co-TiO was drop-coated on the surface of the electrode 2 / MoS 2 Sol, dry at room temperature;
[0060] (2) Wash the electrode obtained in step (1) with the buffer solution PBS, continue to drip-coat 8 µL of 10 µg / mL parathion antibody solution on the surface of the electrode, and store it in a refrigerator at 4 °C to dry;
[0061] (3) Wash the electrode obtained in step (2) with PBS, continue to drip-coat 8 µL of bovine serum albumin solution with a concentration of 100 µg / mL on the surface of the electrode, and store it in a refrigerator at 4 °C to dry;
[0062] (4) Wash the electrode obtained in step (3) with PBS, store it in a refrigerator at 4°C and dry it, and then prepare the parathion sensor;
[0063] The Co-TiO 2 / MoS 2 The sol is 50 mg of Co-TiO 2 / MoS 2 The powder was dissolved in 10 mL...
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