Rapid Potentiometric Determination of Ascorbic Acid Using Iodate as a Reagent (CROSBI ID 317192)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Bevanda, Anita Martinović ; Matić, Antonela ; Talić, Stanislava ; Ivanković, Anita ; Prkić, Ante ; Paut, Andrea ; Vukušić, Tina
engleski
Rapid Potentiometric Determination of Ascorbic Acid Using Iodate as a Reagent
What is proposed in is proposed a fast and simple kinetic potentiometric method for the determination of ascorbic acid (AA) in pharmaceuticals. The method was based on the reaction between AA and iodate to form iodide. A combined iodide ion-selective electrode was used in order to monitor the change in iodide concentration. In the process of a univariate optimization study, experimental conditions were determined that allow a linearity between the concentration and the change of potentials, ΔE, in the range from 8.0∙10−5 to 8.0∙10−4 mol L−1 . Less than two minutes’ time was needed for the proposed method to enable determination of the AA in pharmaceuticals with satisfactory recovery and the usual excipients did not act as interference.
ascorbic acid, potentiometric determination, kinetic method, iodide ion selective electrode, iodate, pharmaceuticals
nije evidentirano
nije evidentirano
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nije evidentirano
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Podaci o izdanju
17
2022.
220730
10
objavljeno
1452-3981
10.20964/2022.07.50