Electrochemical determination of pipazethate hydrochloride on Na-montmorillonite modified carbon paste electrode in formulation and human blood

Ghoneim, Mohammed M.; Abdel‐Azzem, M.; El‐Desoky, Hanaa S.; Khattab, Ahmed E.

doi:10.1007/s10008-014-2674-x

Cited by 19 publications

(23 citation statements)

References 43 publications

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“…The results indicated that the common coexisting species did not have a significant effect on the determination of VILD. Thus, the method is highly selective and, therefore, has been successfully applied to the trace determination of VILD in various biological samples and human serum without any prior separation or preconcentration steps [37,71].…”

Section: Effect Of Foreign Speciesmentioning

confidence: 99%

“…Ca-MMT can play an important role as the parent host structure for inorganic and organic compounds due to their intrinsic properties such as high surface area, high electro-catalytic activity, thermal stability, and ion exchange [28][29][30], and the presence of hydroxyl group active sites on their interlayer surfaces [31,32]. As a result, MMT has been widely used for modifying electrodes in order to improve their determination sensitivity toward anions [33], cations [34][35][36], and organic compounds [35,37,38]. Moreover, it has already been demonstrated that this modifier improves the electron transfer kinetics and the magnitude of the analytical signal when used as an electrochemical sensor [36,37].…”

Section: Introductionmentioning

confidence: 99%

“…As a result, MMT has been widely used for modifying electrodes in order to improve their determination sensitivity toward anions [33], cations [34][35][36], and organic compounds [35,37,38]. Moreover, it has already been demonstrated that this modifier improves the electron transfer kinetics and the magnitude of the analytical signal when used as an electrochemical sensor [36,37]. Consequently, MMT clay is a promising electrode for the determination of the VILD.…”

Section: Introductionmentioning

confidence: 99%

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Voltammetric quantitative analysis of vildagliptin in bulk form and spiked human serum at a modified electrode

et al. 2023

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The electrochemical behavior of Vildagliptin (VILD) was studied using the cyclic voltammetric technique in an aqueous Britton–Robinson (BR) universal buffer solution of various pH levels between 4.0 and 10 at a 5% calcium-montmorillonite clay modified with carbon paste electrode surface (5% Ca-MMT/CPE). The results exhibited an irreversible anodic peak at about 1.238 V versus Ag/AgCl, KCl (3 mol L−1). The anodic peak was found to be diffusion–adsorption controlled. The possible reaction mechanism is estimated taking into consideration of the calculated electrons and protons number transferred on the electrode/electrolyte interface using the cyclic voltammetric technique. VILD was found to adsorb onto the surface of 5% Ca-MMT/CPE in a monolayer surface coverage of 3.0 × 10−12 mol cm−2. A validated square wave voltammetry (SWV) technique for VILD determination was performed. The calibration curve of VILD onto the 5% Ca-MMT/CPE surface was linear in the concentration range of 1.0–110 nmol L−1 with the mean limits of detection and quantification was 0.285 and 0.950 nmol L−1, respectively, in the bulk form. The proposed procedure for the assay of VILD in bulk form, dosage form, and spiked human serum has the advantage of being simple, rapid, sensitive, and inexpensive compared to other analytical methods. The described method showed an excellent performance for the trace determination of VILD in its formulation without interference from excipients. Graphical abstract

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Section: Effect Of Foreign Speciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Voltammetric quantitative analysis of vildagliptin in bulk form and spiked human serum at a modified electrode

et al. 2023

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“…28 Conducting polymers have attracted great attention owing to their unique properties and potential applications in many devices. 29,30 Furthermore, a conducting polymer possessing functional groups that can interact with denite elements is valuable in the analytical processes. Se 4+ demonstrates a high affinity to undergo a denite reaction with aromatic o-diamines to form consistent piaselenol derivatives.…”

Section: Introductionmentioning

confidence: 99%

Voltammetric and impedimetric determinations of selenium(iv) by an innovative gold-free poly(1-aminoanthraquinone)/multiwall carbon nanotube-modified carbon paste electrode

et al. 2022

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“…CPEs are characterized by low electrochemical responses due to the high surface hydrophobicity and slow kinetics of the electrode processes. 27 Carbon nanotubes (CNTs) exhibit high conductivity and large surface areas, which are advantageous for application of these materials as highly sensitive sensors. Multiwalled carbon nanotubes (MWCNTs) show unique electronic properties and can mediate electron transfer processes.…”

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confidence: 99%

Ultrasensitive Platform for Electrochemical Sensing of Copper and Antimony Based on Poly(1,5-Diaminoanthraquinone)/Multiwalled Carbon Nanotubes/Carbon Paste Electrode

Altahan

Ali

Hathoot

et al. 2020

J. Electrochem. Soc.

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A new sensor for the detection of copper (II) (Cu 2+ ) and antimony (III) (Sb 3+ ) metal ions is described herein. The sensor is based on multi-walled carbon nanotubes mixed with a carbon paste electrode modified by poly(1,5-diaminoanthraquinone) (p-1,5-DAAQ). The Cu 2+ and Sb 3+ ions were effectively detected by square wave anodic stripping voltammetry (SWASV) both individually and simultaneously. The proposed modified electrode was characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM), and atomic force microscopy (AFM). Poly(1,5diaminoanthraquinone)/multi-walled carbon nanotubes/carbon paste electrode (p-1,5-DAAQ/MWCNT/CPE) was utilized for electrochemical determination of Cu 2+ and Sb 3+ under pre-optimized conditions (i.e., deposition potential, deposition time, square wave frequency, and concentration of HCl). For simultaneous detection, a linear range of 1-180 μ l −1 was employed with a limit of determination (LOD) of 1.3 and 1.4 ng l −1 for Cu 2+ and Sb 3+ , respectively. Moreover, for individual detection, a linear range of 2-30 μg l −1 was used for Sb 3+ , while for Cu 2+ it was set at 0.5-25 μg l −1 , with a limit of detection of 205.7 ng l −1 and 1.9 ng l −1 for Cu 2+ and Sb 3+ , respectively. The effects of Tween 80 (nonionic surfactant) and humic acid on the metal peak current were also studied. Water samples spiked with both Cu 2+ and Sb 3+ were analyzed utilizing the proposed method as well as by inductively coupled plasma-mass spectroscopy (ICP-MS). Overall, good recovery values were achieved, demonstrating the applicability of the described approach for the detection of metal ions in real water samples.

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Electrochemical determination of pipazethate hydrochloride on Na-montmorillonite modified carbon paste electrode in formulation and human blood

Cited by 19 publications

References 43 publications

Voltammetric quantitative analysis of vildagliptin in bulk form and spiked human serum at a modified electrode

Voltammetric quantitative analysis of vildagliptin in bulk form and spiked human serum at a modified electrode

Voltammetric and impedimetric determinations of selenium(iv) by an innovative gold-free poly(1-aminoanthraquinone)/multiwall carbon nanotube-modified carbon paste electrode

Ultrasensitive Platform for Electrochemical Sensing of Copper and Antimony Based on Poly(1,5-Diaminoanthraquinone)/Multiwalled Carbon Nanotubes/Carbon Paste Electrode

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