Simultaneous voltammetric determination of acetylsalicylic acid, caffeine and paracetamol in pharmaceutical formulations using screen‐printed carbon electrode

Electrochemical oxidation of Paracetamol (PAR), Acetylsalicylic acid (ASA) and Caffeine (CAF) was investigated employing square wave stripping voltammetry (SWSV) using screen–printed carbon electrodes (SPCE). Determinations were performed in 0.1 mol L−1 BR buffer (pH 2.0) without accumulation step....

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Bibliographic Details
Published in:Electroanalysis (New York, N.Y.) N.Y.), 2023-07, Vol.35 (7), p.n/a
Main Authors: Cortés, Karla, Triviño, Juan José, Arancibia, Verónica
Format: Article
Language:English
Subjects:
acetylsalicylic acid
adsorptive stripping voltammetry
boron doped diamond electrode
caffeine
carbon screen printed electrode
paracetamol
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Summary:Electrochemical oxidation of Paracetamol (PAR), Acetylsalicylic acid (ASA) and Caffeine (CAF) was investigated employing square wave stripping voltammetry (SWSV) using screen–printed carbon electrodes (SPCE). Determinations were performed in 0.1 mol L−1 BR buffer (pH 2.0) without accumulation step. SWV were obtained by scanning the potential from 0.00 to 1.40 V employing a scan increment of 4 mV, pulse amplitude 25 mV and frequency of 25 Hz. PAR, ASA and CAF presents oxidation signals at 0.45, 1.03 and 1.32 V. The detection limits were 1.2, 1.7 and 1.7 mg L−1, respectively. The method was applied in the PAR‐ASA‐CAF determination on pharmaceutical formulations.
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.202200484