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Voltammetric methods for estrone determination were developed using a cathodically pretreated BDD electrode with DPV or SWV. Analytical curves were obtained for estrone concentrations from 0.20 or 0.10 to 2.0 µmol L−1, for DPV or SWV, with detection limits of 0.20 and 0.10 µmol L−1, respectively. The SWV method was successfully applied in estrone recovery studies in different water matrices. Additionally,...
A cathodically pretreated boron‐doped diamond electrode was used for the simultaneous anodic determination of ascorbic acid (AA) and caffeine (CAF) by differential pulse voltammetry. Linear calibration curves (r=0.999) were obtained from 1.9×10−5 to 2.1×10−4 mol L−1 for AA and from 9.7×10−6 to 1.1×10−4 mol L−1 for CAF, with detection limits of 19 μmol L−1 and 7.0 μmol L−1, respectively. This method...
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