A Sensitive Voltammetric Sensor for Improved Simultaneous Determination of Moxifloxacin Hydrochloride and Paracetamol

Essa, W. A.; Beltagi, A. M.; Hathoot, A. A.; Azzem, M. Abdel

doi:10.1149/1945-7111/abcc34

Cited by 11 publications

(8 citation statements)

References 77 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At low frequencies, it has a linear part that corresponds to the diffusion process, and at high frequencies, it has a semicircular part that corresponds to the electron-transferlimited process. The charge transfer resistance (R ct ), which represents the facility of electrode reaction, can be estimated from the diameter of the semicircle [49].…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Development of a Sensor Based on Poly(1,2‐diaminoanthraquinone) for Individual and Simultaneous Determination of Mercury (II) and Bismuth (III)

et al. 2021

Self Cite

View full text Add to dashboard Cite

Contamination of natural water by mercury (Hg 2 + ) and bismuth (Bi 3 + ) metal ions have been extensively studied due to their toxic effects. A validated square-wave anodic stripping voltammetry (SW-ASV) method for determining Bi 3 + and Hg 2 + ions individually and simultaneously is described. A new electrochemical sensor was constructed using a gold (Au) electrode that has been modified with poly(1,2-diaminoanthraquinone) (p-1,2-DAAQ). Scanning electron microscopy, cyclic voltammetry, and electrochemical impedance spectroscopy were used to characterize the p-1,2-DAAQ/Au modified electrode. Factors such as the polymer film thickness, electrolyte, square wave parameters and preconcentration conditions were optimized to improve the performance of the modified Au electrode. Good linear responses were achieved in the concentration ranges of 1-200 μg L À 1 and 1-50 μg L À 1 forBi 3 + and Hg 2 + , respectively, and the limits of detection were 0.27 μg L À 1 (Bi 3 + ) and 0.29 μg L À 1 (Hg 2 + ). The interference study results illustrated the high selectivity of the modified electrode for detection of Bi 3 + and Hg 2 + . The proposed SW-ASV method was successfully applied for Bi 3 + and Hg 2 + analyses in different real water samples.

show abstract

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Development of a Sensor Based on Poly(1,2‐diaminoanthraquinone) for Individual and Simultaneous Determination of Mercury (II) and Bismuth (III)

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…The direct electrooxidation of the three isomers of dihydroxybenzene at lower potentials and lower detection limits was studied on PdNPs/ poly1,5-diaminonaphthalene modified GC electrodes [32]. In addition, many electrochemical sensors, which were based on p1,5-DAN, were previously investigated [33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Voltammetric determination of hydrogen peroxide at decorated palladium nanoparticles/poly 1,5-diaminonaphthalene modified carbon-paste electrode

Khalifa,

Abo Oura,

Hathoot

et al. 2024

R. Soc. Open Sci.

View full text Add to dashboard Cite

In this work, palladium nanoparticles (PdNPs)/p1,5-DAN/ carbon paste electrode (CPE) and p1,5-DAN/CPE sensors have been developed for determination of hydrogen peroxide. Both sensors showed a highly sensitive and selective electrochemical behaviour, which were derived from a large specific area of poly 1,5 DAN and super excellent electroconductibility of PdNPs. PdNPs/p1,5-DAN/CPE exhibited excellent performance over p1,5-DAN/CPE. Thus, it was used for detecting hydrogen peroxide (H 2 O 2 ) with linear ranges of 0.1 to 250 µM and 0.2 to 300 µM as well as detection limits ( S/N = 3 ) of 1.0 and 5.0 nM for square wave voltammetry (SWV) and cyclic voltammetry (C.V) techniques, respectively. The modified CPE has good reproducibility, adequate catalytic activity, simple synthesis and stability of peak response during H 2 O 2 oxidation on long run that exceeds many probes. Both reproducibility and stability for H 2 O 2 detection are attributable to the PdNPs immobilized on the surface of p1,5-DAN/CPE. The modified CPE was used for determining H 2 O 2 in real specimens with good stability, sensitivity, and reproducibility.

show abstract

“…Electrochemical sensors are considered promising tools for detecting organic pollutants with enhanced sensitivity and selectivity compared with spectroscopic and optical sensors [13,14]. Many electrochemical tools, including voltammetric, amperometric and impedimetric, could be used for pollutant detection [15][16][17][18]. The voltammetric method has been widely studied as a powerful method for dye evaluation based on different techniques, including cyclic voltammetry (CV), linear sweep voltammetry (LSV), differential pulse voltammetry (DPV) and square wave voltammetry (SWV) [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Biosynthesized silver nanoparticles for electrochemical detection of bromocresol green in river water

et al. 2023

View full text Add to dashboard Cite

In this study, silver nanoparticles (AgNPs)-based electrochemical sensor has been reported for assessing bromocresol green (BG) in river water. Firstly, AgNPs were greenly produced using the aqueous extract of Ficus sycomorus leaves. Then, the AgNP-modified glassy carbon (GC) electrode was prepared using the sticking method. AgNPs were characterized using transmission electron microscope (TEM), X-ray diffraction (XRD), square wave voltammetry (SWV) and scanning electron microscope (SEM). TEM and SEM were used for determining the size of AgNPs before and after adsorption, respectively. The results show that there was an increase in AgNP size from 20 to 30 nm. Additionally, XRD was used for characterizing the crystal nature of AgNPs, while SWV exhibited a characteristic oxidation peak of AgNPs at 0.06 V. Moreover, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were used for characterizing the catalytic effect of AgNPs. BG as a targeted pollutant was detected at AgNPs/GC based on its oxidation through proton and electron transfer. Two peaks corresponding to the monomer and polymer oxidation were detected. The monomer- and polymer-based sensors have revealed a linear range of 2.9 × 10 −5 to 2.1 × 10 −4 mole l −1 and low detection limits (LODs) of 1.5 × 10 −5 and 1.3 × 10 −5 mole l −1 , respectively.

show abstract

A Sensitive Voltammetric Sensor for Improved Simultaneous Determination of Moxifloxacin Hydrochloride and Paracetamol

Cited by 11 publications

References 77 publications

Development of a Sensor Based on Poly(1,2‐diaminoanthraquinone) for Individual and Simultaneous Determination of Mercury (II) and Bismuth (III)

Development of a Sensor Based on Poly(1,2‐diaminoanthraquinone) for Individual and Simultaneous Determination of Mercury (II) and Bismuth (III)

Voltammetric determination of hydrogen peroxide at decorated palladium nanoparticles/poly 1,5-diaminonaphthalene modified carbon-paste electrode

Biosynthesized silver nanoparticles for electrochemical detection of bromocresol green in river water

Contact Info

Product

Resources

About