Published: Jan. 1, 2024

Sulfamethoxazole is an antibiotic that among the drugs most frequently found in waters around world because of its habitual consumption and high chemical stability prevents it from being eliminated environment. In this study, electroanalytical methodology based on differential pulse voltammetry developed for analysis sulfamethoxazole at trace levels water. After optimization instrumental parameters a linear range 6.59 to 96.27 µM was with limits detection quantification 1.98 µM, respectively, RSD below 6%. Moreover, several validation studies involving different pH values, water samples instrumentation were performed order ensure robustness method. For purpose, peak area used as quantitative variable since not affected by medium even if there any modification parameter during experiments. Furthermore, effect other drug such trimethoprim analytical signal also evaluated. Once method tested quality control Soltrim®, obtaining recoveries between 98 102%. Lastly, voltammetric applied situ monitoring sulfamethoxazole's removal samples, specifically anodic oxidation electro-Fenton treatments. While former coupled adsorption process, latter carried out iron sources including commercial medicines can be wastewater. Although proved faster considering calculated kobs, turned more efficient eliminating drug, achieving disappearance only 30 min treatment.

Language: Английский