Electrochemical sensor for detecting imidacloprid
AssigneeNajran University
InventorsFarid A. Harraz, Md. A. Rashed, M. Faisal, S.A. Alsareii, Mabkhoot Alsaiari, Mohammed Jalalah
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Abstract
A method of detecting an imidacloprid compound including: contacting an electrochemical sensor with a solution; applying a potential across the electrochemical sensor in the solution. The method further includes measuring the current output of the electrochemical sensor; and determining if the imidacloprid compound is present in the solution based on the current output. The electrochemical sensor includes at least one layer of a nanocomposite at least partially coating a substrate surface. The nanocomposite includes silver nanoparticles, mesoporous carbon, and hematite ore.
Claims16
A method of detecting imidacloprid, comprising:
- contacting an electrochemical sensor with a solution;
- applying a potential across the electrochemical sensor in the solution;
- measuring the current output of the electrochemical sensor;
- and
- determining if the imidacloprid compound is present in the solution based on the current output,
- wherein the electrochemical sensor comprises at least one layer of a nanocomposite at least partially coating a surface of a substrate,
- wherein the nanocomposite comprises:
- silver nanoparticles;
- mesoporous carbon;
- and
- hematite ore,
- wherein the mesoporous carbon is distributed over the hematite ore to form a composite, and the silver nanoparticles are uniformly distributed over a surface of the composite to form the nanocomposite,
- wherein the silver nanoparticles are uniformly distributed over the surface of the composite via charge transfer interactions.
A method of detecting imidacloprid, comprising:
- contacting an electrochemical sensor with a solution;
- applying a potential across the electrochemical sensor in the solution;
- measuring the current output of the electrochemical sensor;
- and
- determining if the imidacloprid compound is present in the solution based on the current output,
- wherein the electrochemical sensor comprises at least one layer of a nanocomposite at least partially coating a surface of a substrate,
- wherein the nanocomposite comprises:
- silver nanoparticles;
- mesoporous carbon;
- and
- hematite ore,
- wherein the mesoporous carbon is distributed over the hematite ore to form a composite, and the silver nanoparticles are uniformly distributed over a surface of the composite to form the nanocomposite,
- wherein the nanocomposite comprises 0.1-5 wt % silver nanoparticles, 1-5 wt % mesoporous carbon, and 90-98 wt % hematite ore, based on the total weight of the nanocomposite.
A method of detecting imidacloprid, comprising:
- contacting an electrochemical sensor with a solution;
- applying a potential across the electrochemical sensor in the solution;
- measuring the current output of the electrochemical sensor;
- and
- determining if the imidacloprid compound is present in the solution based on the current output,
- wherein the electrochemical sensor comprises at least one layer of a nanocomposite at least partially coating a surface of a substrate,
- wherein the nanocomposite comprises:
- silver nanoparticles;
- mesoporous carbon;
- and
- hematite ore,
- wherein the mesoporous carbon is distributed over the hematite ore to form a composite, and the silver nanoparticles are uniformly distributed over a surface of the composite to form the nanocomposite,
- wherein the nanocomposite comprises 30-50 atomic percent (at %) carbon, 20-40 at % oxygen, 1-5 at % aluminum, 1-5 at % silicon, 15-25 at % iron, and 0.01-2 at % silver based on a total at % of the nanocomposite.
Dependencies are inferred from the claim text.