Electrochemical Oxidation of Phenothiazine Derivatives at Glassy Carbon Electrodes and Their Differential Pulse and Square‐wave Voltammetric Determination in Pharmaceuticals

Multi-walled carbon nanotubes with immobilised cobalt nanoparticle for modification of glassy carbon electrode: Application to sensitive voltammetric determination of thioridazine

“…The results of recovery evaluations showed an average recovery of 100.4% for TR added to the serum samples. The results show that the modified electrode yielded a better recovery and high sensitivity in comparison to other reported voltammetric determination methods (Bįryol and Dermįş , 1998;Mielech-Łukasiewicz et al, 2008) and could be efficiently used for the determination of TR in biological and pharmaceutical samples. One of the most remarkable advantages of the prepared modified electrode is that the sulfhydryl compounds (e.g., cysteine, penicillamine and glutathione) did not show any electrochemical reactivity on the surface of CoNPs/MWCNT/GCE, which improves the selectivity and accuracy of the measurements in clinical samples.…”

Sensitive and Rapid Voltammetric Determination of Phenothiazine and Azaphenothiazine Derivatives in Pharmaceuticals Using a Boron-doped Diamond Electrode

“…The following formulas were applied: On the basis of the data included in Table 1, it can be said that the developed SWV and DPV methods have good sensitivity, which is proved by the obtained LOD and LOQ values. This also shows that procedures using the BDD electrode are more sensitive than those using the GC electrode 20,21 and Hg electrode 16 or different metallic electrodes (e.g. Pt, Ru, Au).…”

“…Pt, Au, Ru) [17][18][19] and different carbon electrodes. [20][21][22] Some works are also described in which phenothiazine derivatives are electrocatalytically oxidized in the presence of methylene blue or alizarin red S used as mediators. methods are also described, using selective adsorption of phenothiazine derivatives on properly modified (e.g.…”

Disposable solid state probe for optical screening of chlorpromazine

“…These include spectrofluorimetry [5], chemiluminescence [6], high performance liquid chromatography [7][8][9][10], voltammetry [11][12][13], differential pulse stripping voltammetry [14][15][16][17], polarography [18,19], and electrophoresis [20][21][22][23][24], visible spectrophotometry [25][26][27][28][29] and a combination of the previous ones [30]. These methods exhibit excellent selectivity, but require expensive instrumentation and are unsuitable for screening in the local under survey.…”