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Flow injection analysis using carbon film resistor electrodes for amperometric ...
Felix, Fabiana S.; Brett, Christopher M.A.; Angnes, LúcioFlow injection analysis (FIA) using a carbon film sensor for amperometric detection was explored for ambroxol analysis in pharmaceutical formulations. The specially designed flow cell designed in the lab generated sharp and reproducible current peaks, with a wide linear dynamic range from 5 × 10-7 to 3.5 × 10-4 mol L-1, in 0.1 mol L-1 sulfuric acid electrolyte, as well as high sensitivity, 0.110 A mol-1 L cm-2 ...
Carbon film resistor electrode for amperometric determination of acetaminophen ...
Felix, Fabiana S.; Brett, Christopher M.A.; Angnes, LúcioFlow injection analysis (FIA) with amperometric detection was employed for acetaminophen quantification in pharmaceutical formulations using a carbon film resistor electrode. This sensor exhibited sharp and reproducible current peaks for acetaminophen without chemical modification of its surface. A wide linear working range (8.0 × 10-7 to 5.0 × 10-4 mol L-1) in phosphate buffer solution as well as high sensitiv...
Determination of Cd, Pb and Ni by square wave stripping voltammetry in particul...
Felix,Fabiana S.; Lichtig,Jaim; Santos,Luciana B.O. dos; Masini,Jorge C.The concentration of Cd, Pb and Ni in atmospheric particulate matter collected in the workplace of three foundries located in the municipality of Loanda, Paraná, Brazil, was determined by square wave voltammetry and ICP OES. The results show that workers are being systematically exposed to concentrations of Cd and Pb that are significantly above the Limit of Concentration recommended by the American Conference ...
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