King Fahd University of Petroleum and Minerals

Muhammad Haroon

Abdulaziz Abdulrahman Al-saadi

Tawfik Abdo Saleh

Sathiyamoorthy Murugesan

A method of detecting an hydroxycarbamide in a solution including contacting an electrochemical sensor with the solution, where the electrochemical sensor includes gold coated copper oxide circular nanoplates and a substrate. The gold coated copper oxide circular nanoplates are coated on the substrate. The method further includes applying a potential and irradiating the electrochemical sensor in the solution, and measuring a Raman signal of the electrochemical sensor in the solution. The intensity of the Raman signal correlates with the amount of hydroxycarbamide in the solution.

Electrochemical sensor for detecting hydroxycarbamide

A surface-enhanced Raman scattering (SERS) substrate is provided. The SERS substrate includes a transparent substrate and a nanocomposite composition. The nanocomposite composition includes a silver-loaded silica (Ag—SiO) nanocomposite having a silica core and a silver/silica shell disposed around the silica core and a zeolitic material having a nano porous structure. The silver/silica shell contains silver nanoparticles uniformly distributed therein. The Ag—SiOnanocomposite is uniformly disposed on a surface of the zeolitic material. The nanoparticles of the Ag—SiOnanocomposite are spherical and have a mean particle size of 100 to 500 nanometers (nm). A method of obtaining a Raman spectrum of a sulfur-containing compound in a mixing composition is also provided.

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Dhahran, Saudi Arabia

Muhammad Haroon