Determination of Propylthiouracil in Pharmaceuticals by Differential Pulse Voltammetry Using a Cathodically Pretreated Boron-Doped Diamond Electrode

Electroanalytical application of a boron-doped diamond electrode: Improving the simultaneous voltammetric determination of amlodipine and valsartan in urine and combined dosage forms

“…Similar effects of cathodic pretreatment of this type electrode were also obtained for other compounds, as previously reported [16,21,23,26,40,41].…”

“…They represent the useful alternative methods widely applied in analysis of pharmaceuticals, because it involving operation simplicity, low-cost instrumentation, high sensitivity and rapidity of data acquisition, and there is also the possibility of analysis of colored or solutions with suspended solids. In this way, electrochemical methods have been sufficiently used in combination with boron-doped diamond (BDD) electrode for the development of analytical procedures for pharmaceutical compounds, as evidenced by studies reported in scientific literature in the last decade [14][15][16][17][18][19][20][21][22][23][24][25]. BDD electrode is particularly attractive in electroanalytical applications for pharmaceutical compounds due to wide working potential window in aqueous solutions, which allows for the quantification of electroactive species without the interference of water decomposition, long term stability, inertness of the surface to adsorption of reaction products, good resistance to passivation, high chemical stability, lower residual current, and low sensitivity to dissolved oxygen [15,[27][28][29].…”

Amperometric flow-injection determination of the anthelmintic drugs ivermectin and levamisole using electrochemically pretreated boron-doped diamond electrodes

“…As has been previously summarized [32], increased electroanalytical performances have been attained in the determination of additives in food products and drugs in pharmaceutical formulations after the BDD electrode was cathodically pretreated; more recently, this has happened e.g. for food colorants [33], and the pharmaceuticals albendazole [34], propylthiouracil [35], bezafibrate [36], hydroxychloroquine [37], hydroquinone [38], diclofenac [39], ciprofloxacin [40], and paracetamol/caffeine/orphenadrine [41] or propanolol/hydrochlorothiazide [42] simultaneously. However, in some cases, better results were attained with an anodically pretreated BDD electrode, e.g.…”

Boron-doped diamond electrodes explored for the electroanalytical detection of 7-methylguanine and applied for its sensing within urine samples

“…Both electrodes have been widely employed due to their attractive properties for the study of the electrochemical behavior of biological compounds [42]. Fig.…”