Anodic behaviour of fulvestrant and its voltammetric determination in pharmaceuticals and human serum on highly boron-doped diamond electrode using differential pulse adsorptive stripping voltammetry |
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Authors: | B Dogan-Topal Dilek Kul Sibel A Ozkan B Uslu |
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Affiliation: | (1) Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, 06100 Tandogan, Ankara, Turkey;(2) Faculty of Pharmacy, Karadeniz Technical University, 61080 Trabzon, Turkey; |
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Abstract: | The electrochemical oxidation of fulvestrant was made on highly boron-doped diamond electrode using differential pulse adsorptive
stripping voltammetry. The highest current intensities were obtained by applying +1.10 V during 150 s for boron-doped diamond
electrode. For boron-doped diamond electrode, linear responses were obtained for the concentrations between 1 × 10−6 and 8 × 10−5 M in standard samples and between 1 × 10−6 and 4 × 10−5 M in serum samples. The repeatability of the method was 0.55 RSD% for differential pulse adsorptive stripping voltammetry.
The analytical values of the method are demonstrated by quantitative determination of fulvestrant in pharmaceutical formulations
and human serum, without the need for separation or complex sample preparation, since there was no interference from the excipients
and endogenous substances. Selectivity, reproducibility, and accuracy of the developed methods were demonstrated by recovery
studies. |
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