Electrocatalytic oxidation of hydrazine on poly(4-aminobenzene sulfonic acid)-modified glassy carbon electrode

Sadıkoğlu, Murat; Kurt, İbrahim; Selvi, Bedrettin; Sarı, Hayati; Erduran, Nuran; Usta, Erdoğan; Sağlikoğlu, Gülşen

doi:10.1134/s1023193516060112

Cited by 5 publications

(7 citation statements)

References 30 publications

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“…Additionally, the positive shift was observed in the anodic peak potential of TAM. The slope is between 0.50-0.75 indicates that the current is diffusion controlled and that it is 0.75-1.00 indicates that the current is adsorption controlled (Sadikoglu et al, 2016), (Moghaddam et al, 2017). The logarithm of peak current (log I) against the logarithm of scan rate (log v) was shown in (Fig.…”

Section: Figure-2 the Oxidation Peak Current Values Obtained From Dpv Voltammograms Of 100µmmentioning

confidence: 99%

Voltammetric Analysis of Tamoxifen Recovery and Its Interaction With Dna

Yanik

Ozkan-Ariksoysal

2020

Health Sci. Q.

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The design of biosensors is one of the most important areas of analytical chemistry today, and interest in DNA-based bio (nano) sensors developed to examine applications related to compound-DNA interaction has been increasing in the last two decades. Changing in DNA structure, even for therapeutic purposes, can have serious effects on human health. The detection of any chemical substances in DNA sutructure is very important. In this study, an anticancer drug Tamoxifen (TAM) is used in the treatment of cancer since the early 1970s was identifying the possible DNA interaction during treatment by using differential pulse voltammetry (DPV) based on both TAM and guanine oxidation signals at the disposable pencil graphite electrode (PGE). The effect of TAM on single stranded (ss)-DNA and double stranded (ds)-DNA showed differences, depending on the double helix and single stranded structure. It was found that TAM interacting to ds-DNA more strongly than ss-DNA. Thus, Drug-DNA interaction analysis has been investigated for the first time under optimized conditions with the Tamoxifen which, gave an oxidation peak potential near the guanine oxidation area. These results presented that the developed DNA biosensor could be detected TAM-DNA interaction as a sensitive, rapid and cost effective way. Electrochemical detectionTamoxifen recovery from commercial tablets was also studied..

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Section: Figure-2 the Oxidation Peak Current Values Obtained From Dpv Voltammograms Of 100µmmentioning

confidence: 99%

Voltammetric Analysis of Tamoxifen Recovery and Its Interaction With Dna

Yanik

Ozkan-Ariksoysal

2020

Health Sci. Q.

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“…The logarithm of peak current (log I) against the logarithm of scan rate (log v) is shown in Figure 4. The plot of logarithm of peak current (log I) versus logarithm of scan rate (log v) has a slope of 0.6647 (theoretical value of 0.50-0.75) indicate that the peak is diffusion controlled [12,17,18]. The peak current values of the oxidation peak obtained from the DPV voltammograms of the solutions of 510 -5 M NAP prepared with different support electrolytes in the range from pH 2.0 to 10.0 are showed in Figure 5.…”

Section: The Nature Of the Oxidation Peak Of Naproxenmentioning

confidence: 99%

“…The correlation coefficient is very close to 1.0. Consequently, it is understood that the electrochemical-oxidation is diffusion controlled [12,17,18]. The logarithm of peak current (log I) against the logarithm of scan rate (log v) is shown in Figure 4.…”

Section: The Nature Of the Oxidation Peak Of Naproxenmentioning

confidence: 99%

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Voltammetric and Chromatographic Determination of Naproxen in Drug Formulation

et al. 2019

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In this work, the electrochemical oxidation of naproxen (NAP) was studied at an ultra-trace graphite electrode (UTGE). The cyclic voltammetry (CV) technique was used to determine the optimum conditions and the effect of pH on the electrochemical oxidation of NAP. Acetate buffer (pH 4.50) was selected as the support electrolyte due to obtaining the highest electronic signal increase during oxidation of NAP at UTGE. The differential pulse voltammetry (DPV) technique was performed for electrochemical determination of NAP. In the optimum conditions, the limits of detection (LOD) and quantification (LOQ) were determined to be 8.66 10-8 M and 2.88 10-7 M. In addition, the amount of NAP was determined in drug tablets. The recovery studies of NAP from the drug tablet were completed in order to check the accuracy and precision of the applied voltammetric method. Furthermore, the determination of NAP was performed with the high-performance liquid chromatography (HPLC) method. These two methods were compared in terms of accuracy, precision and recovery studies.

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“…Also, the thermodynamic reversible potential of the direct hydrazine fuel cell (DHFC) is quite high, being about 1.56 V . Furthermore, previous studies have revealed that no catalyst poisoning occurs during hydrazine electroxidation . The use of an alkaline solution in a fuel cell has numerous advantages, including increased efficiency, higher efficiency of both anodic and cathodic processes, availability of a much broader range of possible electrode materials with almost no sensitivity to the surface structure, and insignificant poisoning effects .…”

Section: Introductionmentioning

confidence: 99%

Preparation of nanostructured Co–Mo alloy electrodes and investigation of their electrocatalytic activity for hydrazine oxidation in alkaline medium

Abdolmaleki¹,

Bodaghi

Hosseini

et al. 2018

J Chinese Chemical Soc

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Funding informationOffice of the Vice-Chancellor in charge of research of Sayyed Jamaleddin Asadabadi University Cobalt and cobalt-molybdenum alloy electrodes are prepared by galvanic deposition on copper substrates. In this paper, we report a study on the influence of alloying cobalt with molybdenum for the oxidation of hydrazine in 1 M NaOH aqueous solutions. The electrocatalytic properties of the electrodes are studied by cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS). Scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS,) and inductively coupled plasma (ICP) analysis demonstrate that the structural features and compositions of the as-prepared Co-Mo coatings vary with the deposition conditions. Electrochemical characterization indicates that the electrochemical properties and the electrocatalytic activity of the investigated alloys were strongly dependent on the microstructural features obtained under different deposition conditions. The overall experimental data indicate that alloying cobalt with molybdenum metal leads to an increase of the electrocatalytic activity in hydrazine electroxidation compared to when using the pure cobalt electrode. High catalytic efficiencies were achieved on Co/25 at.% Mo and Co/33 at.% Mo electrodes, the latter being the best electrocatalyst for hydrazine electroxidation. K E Y W O R D Scyclic voltammetry, electrocatalytic activity, electrochemical impedance spectroscopy, electrodeposition, hydrazine electroxidation, nanostructured Co-Mo

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Electrocatalytic oxidation of hydrazine on poly(4-aminobenzene sulfonic acid)-modified glassy carbon electrode

Cited by 5 publications

References 30 publications

Voltammetric Analysis of Tamoxifen Recovery and Its Interaction With Dna

Voltammetric Analysis of Tamoxifen Recovery and Its Interaction With Dna

Voltammetric and Chromatographic Determination of Naproxen in Drug Formulation

Preparation of nanostructured Co–Mo alloy electrodes and investigation of their electrocatalytic activity for hydrazine oxidation in alkaline medium

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