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A new electrochemical sensor based on a carbon nanotube paste electrode modified with a Santa Barbara Amorphous material (SBA‐15) decorated with silver nanoparticles, namely CNT/SBA/Ag‐PE, was developed. It was successfully applied for individual and simultaneous determination of both paracetamol (PC) and sulfamethoxazole (SMZ) medicines. The electrode exhibited a linear dynamic range of 0.12–110...
Four silica materials was prepared by using different synthesis procedures, with the goal of obtaining matrices with different designed textures, microporous, mesoporous, and ordered pore structured materials, as MCM-41 and SBA-15. These silica materials were used to prepare bare carbon paste electrode, without addition of other components, as nanostructured or electroactive species. In this way,...
A mixture of silica chemically modified with 1-n-propyl-3-methylimidazolium chloride and graphite was used to fabricate a ceramic working electrode. The conventional three-electrode cell that included the prepared electrode has been used to investigate the electrochemical behavior of quercetin in aqueous and ethanol-water media by methods of cyclic voltammetry and chronoamperometry. The procedures...
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