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Stanovenie kyseliny listovej vo farmaceutických prípravkoch pomocou square-wave voltampérometrie na bórom dopovanej diamantovej elektróde
[Determination of folic acid in pharmaceutical preparations by square-wave voltammetry using a borondoped diamond electrode]
Kristína Cinková, Petra Šatkovská,ds Ľubomír Švorc
Language Slovak Country Czech Republic
Document type Research Support, Non-U.S. Gov't
- Keywords
- square-wave voltampérometrie, borem dopovaná diamantová elektroda,
- MeSH
- Boron MeSH
- Electrochemical Techniques * methods statistics & numerical data methods statistics & numerical data MeSH
- Electrodes MeSH
- Folic Acid * analysis chemistry MeSH
- Pharmaceutical Preparations analysis chemistry MeSH
- Publication type
- Research Support, Non-U.S. Gov't MeSH
Electrochemical behavior of folic acid (FA) was studied by cyclic voltammetry. An irreversible oxidation peak of FA was obtained at +0,85 V (Ag/AgCl, pH 5.0). The current dependence for square-wave voltammetry was linear at 1.0·10–7 – 17·10–4 M FA with a low detection limit of 3.0·10–8 M and good repeatability (RSD 2.8 %, n = 10). The method was used in analysis of tablets with recoveries 101.5 and 103.1 % and the determined values outside the confidence interval P = 95 %. The method is an alternative to widely used chromatographic methods.
Determination of folic acid in pharmaceutical preparations by square-wave voltammetry using a borondoped diamond electrode
Literatura
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- $a Stanovenie kyseliny listovej vo farmaceutických prípravkoch pomocou square-wave voltampérometrie na bórom dopovanej diamantovej elektróde / $c Kristína Cinková, Petra Šatkovská,ds Ľubomír Švorc
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- $a Determination of folic acid in pharmaceutical preparations by square-wave voltammetry using a borondoped diamond electrode
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- $a Electrochemical behavior of folic acid (FA) was studied by cyclic voltammetry. An irreversible oxidation peak of FA was obtained at +0,85 V (Ag/AgCl, pH 5.0). The current dependence for square-wave voltammetry was linear at 1.0·10–7 – 17·10–4 M FA with a low detection limit of 3.0·10–8 M and good repeatability (RSD 2.8 %, n = 10). The method was used in analysis of tablets with recoveries 101.5 and 103.1 % and the determined values outside the confidence interval P = 95 %. The method is an alternative to widely used chromatographic methods.
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