Fabrication, electrochemical characteristics and electrocatalytic activity of 4-((2-hydroxyphenylimino)methyl)benzene-1,2-diol electrodeposited on a carbon nanotube modified glassy carbon electrode as a hydrazine sensor

Zare, Hamid R.; Shekari, Zahra; Nasirizadeh, Navid; Jafari, Abbas Ali

doi:10.1039/c2cy20388j

Cited by 24 publications

(8 citation statements)

References 55 publications

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“…From the values of ΔE p corresponding to different sweep rates, an average value of k s was found to be 1.9 ± 0.05 Hz. This value of k s is comparable to those reported for other modifiers [ 21 , 24 , 27 , 28 ]. Since the electron transfer rate constant for the RB is about 1.9 Hz, it can be used as an excellent electron transfer mediator for electrocatalytic processes.…”

Section: Resultssupporting

confidence: 88%

Fabrication of a novel electrochemical sensor for determination of hydrogen peroxide in different fruit juice samples

Nasirizadeh

Shekari

Nazari

et al. 2016

Journal of Food and Drug Analysis

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A new hydrogen peroxide (HO) sensor is fabricated based on a multiwalled carbon nanotube-modified glassy carbon electrode (MWCNT-GCE) and reactive blue 19 (RB). The charge transfer coefficient, α, and the charge transfer rate constant, k, of RB adsorbed on MWCNT-GCE were calculated and found to be 0.44 ± 0.01 Hz and 1.9 ± 0.05 Hz, respectively. The catalysis of the electroreduction of HO by RB-MWCNT-GCE is described. The RB-MWCNT-GCE shows a dramatic increase in the peak current and a decrease in the overvoltage of HO electroreduction in comparison with that seen at an RB modified GCE, MWCNT modified GCE, and activated GCE. The kinetic parameters such as α and the heterogeneous rate constant, k', for the reduction of HO at RB-MWCNT-GCE surface were determined using cyclic voltammetry. The detection limit of 0.27μM and three linear calibration ranges were obtained for HO determination at the RB-MWCNT-GCE surface using an amperometry method. In addition, using the newly developed sensor, HO was determined in real samples with satisfactory results.

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Section: Resultssupporting

confidence: 88%

Fabrication of a novel electrochemical sensor for determination of hydrogen peroxide in different fruit juice samples

Nasirizadeh

Shekari

Nazari

et al. 2016

Journal of Food and Drug Analysis

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“…This value of k s is comparable to those reported for a modier that has a hydroquinone moiety. 18,27,29,30…”

Section: Resultsmentioning

confidence: 99%

Electrocatalytic oxidation of N-acetyl-l-cysteine at a quercetin multiwall carbon nanotube modified GCE: application for simultaneous determination of ascorbic acid, l-DOPA, N-acetyl-l-cysteine, acetaminophen and tryptophan

2015

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In the present study, a modified electrode has been constructed by immobilizing of quercetin at the surface of a glassy carbon electrode modified with multi-wall carbon nanotubes (Q-MWCNT-GCE), and its electrochemical characteristics were studied by cyclic voltammetry. Q- MWCNT-GCE was successfully used for N-acetyl-L-cysteine (NAC) electrocatalytic oxidation and simultaneous determination of ascorbic acid (AA), L-DOPA ) D L ( , NAC, acetaminophen (AC) and tryptophan (Trp). The obtained results indicate that the peak potential of NAC oxidation at the Q-MWCNT-GCE surface appears at the less positive potential compared with that at the MWCNT-GCE or Q-GCE surface. The electron transfer coefficient, α, and the heterogeneous electron transfer rate constant, k', for the oxidation of NAC at the Q-MWCNT-GCE surface were calculated 0.30 and 6.5×10 -4 cm s -1 , respectively. Furthermore, differential pulse voltammetry (DPV) exhibits two linear dynamic ranges of 1.1-50.0 and 50.0-1000.0 µM and a detection limit of 0.44 µM for NAC determination. Also, Q-MWCNT-GCE was used to simultaneous determination of AA, LD, NAC, AC and Trp with DPV. Finally, the activity of the modified electrode was also investigated for determination of AA, LD, NAC and AC in real samples and satisfactory results were obtained. 15 corresponding to the oxidation of AA, LD, NAC, AC and Trp, respectively. Additionally, substantial increases in the peak currents were detected due to successive increases of AA, LD, NAC, AC and Trp in the analyte solution. The inset of Fig. 6A shows the differential pulse voltammogram of BGCE in a 0.10 M PBS (pH 7.0) containing of 700.0 µM of AA, 100.0 µM of LD, 30.0 µM of NAC, 50.0 µM of AC and 300.0 µM of Trp. This voltammogram indicates that a BGCE could not separate the analytical signals of AA, LD, NAC, AC and Trp. Moreover, Figs.6B-6F show that the calibration plots for AA, LD, NAC, AC and Trp are linear for the concentration ranges of 363.0-800.0 µM of AA, 50.0-112.0 µM of LD, 18.0-40.0 µM of NAC, 30.0-68.0 µM of AC and 167.0-368.0 µM of Trp. It is interesting to note that the sensitivities of the modified electrode to NAC in the absence and presence of AA, LD, AC and Trp are near to each other. It denotes the fact that the oxidation processes of AA, LD, NAC, AC and Trp at the Q-MWCNT-GCE surface are independent of one another. Thus, simultaneous or individual measurements of AA, LD, NAC, AC and Trp are possible without any interference in the proposed modified electrode surface. Application of Q-MWCNT-GCE for determination of AA, LD, NAC, and AC in real samplesThe utility of the proposed modified electrode for determining AA, LD, NAC and AC in pharmaceutical formulations was tested by a DPV method. The modified electrode was used to determine AA, LD, NAC, and AC concentrations in different tablets. For the measurement of AA, LD, NAC and AC in tablet samples, one AA tablet (500 mg), one LD tablet (100 mg), one NAC tablet (600 mg) and one AC tablet (325 mg) dissolved in 1000 mL of double distilled water separately, and...

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“…Ternary doped nanomaterials have been reported as promising chemical sensors with a variety of electroanalytical techniques. [49][50][51][52][53] The significant application of MoO 3 /CuO/ZnO nanocomposite materials/Nafion/GCE accumulated onto an electrode as chemical sensor has been utilized to detect environmentally toxic substances. Current response in the electrochemical method for the MoO 3 /CuO/ZnO nanomaterials/Nafion/GCE has been significantly changed during the adsorption of HZ as a target agent.…”

Section: Detection Of Hz Using Moo 3 /Cuo/zno Nanomaterials By Electrochemical Methodsmentioning

confidence: 99%

“…From the literature review, HZ was determined using different chemical techniques. [23][24][25][26][27][28][29][30][31][32][33][53][54][55][56][57][58][59][60][61][62][63][64][65] Here, we report the determination of HZ by ternary metal oxides using the current versus voltage technique at room conditions. The analytical outcomes of various electrochemical techniques for the quantification of HZ are given in Table 2.…”

Section: Detection Of Hz Using Moo 3 /Cuo/zno Nanomaterials By Electrochemical Methodsmentioning

confidence: 99%

Highly sensitive and efficient hydrazine sensor probe development based on MoO₃/CuO/ZnO ternary mixed metal oxide nano‐composites for sustainable environment

Subhan

Saha

Akand

et al. 2021

Electrochemical Science Adv

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In this study, by using a co-precipitation method MoO 3 /CuO/ZnO nanocomposite material was synthesized. Then the prepared material was fully characterized by using XRD (X-ray diffraction), SEM (scanning electron microscopy), EDS (energy dispersive x-ray spectroscopy), CV (cyclic voltammetry), and EIS (Electrochemical Impedance Spectroscopy). Zeta potential and hydrodynamic size were measured using a Zetasizer in PBS buffer. By using Scherrer's formula from XRD, particle size was determined which was around 26.5 nm. For the promising chemical sensor development, MoO 3 /CuO/ZnO nanocomposite material was fabricated onto a glassy carbon electrode (GCE) to provide a sensor probe with a fast response towards the selective hydrazine (HZ) toxin in phosphate buffer phase. The fabricated sensor probe is exhibited good sensitivity and long-term stability as well as enhanced electrochemical performances. A calibration plot was found linear in the range of 0.2 nM to 2.0 mM (linear dynamic range, LDR) in presence of aqueous HZ solutions with highest sensitivity value and lower limit of detection and good limit of quantification (LOQ). This approach is promising as an efficient technique in developing a highly effective sensor probe with ternary metal oxides for detecting environmental pollutants on a broad scale.

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Fabrication, electrochemical characteristics and electrocatalytic activity of 4-((2-hydroxyphenylimino)methyl)benzene-1,2-diol electrodeposited on a carbon nanotube modified glassy carbon electrode as a hydrazine sensor

Cited by 24 publications

References 55 publications

Fabrication of a novel electrochemical sensor for determination of hydrogen peroxide in different fruit juice samples

Fabrication of a novel electrochemical sensor for determination of hydrogen peroxide in different fruit juice samples

Electrocatalytic oxidation of N-acetyl-l-cysteine at a quercetin multiwall carbon nanotube modified GCE: application for simultaneous determination of ascorbic acid, l-DOPA, N-acetyl-l-cysteine, acetaminophen and tryptophan

Highly sensitive and efficient hydrazine sensor probe development based on MoO₃/CuO/ZnO ternary mixed metal oxide nano‐composites for sustainable environment

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Fabrication, electrochemical characteristics and electrocatalytic activity of 4-((2-hydroxyphenylimino)methyl)benzene-1,2-diol electrodeposited on a carbon nanotube modified glassy carbon electrode as a hydrazine sensor

Cited by 24 publications

References 55 publications

Fabrication of a novel electrochemical sensor for determination of hydrogen peroxide in different fruit juice samples

Fabrication of a novel electrochemical sensor for determination of hydrogen peroxide in different fruit juice samples

Electrocatalytic oxidation of N-acetyl-l-cysteine at a quercetin multiwall carbon nanotube modified GCE: application for simultaneous determination of ascorbic acid, l-DOPA, N-acetyl-l-cysteine, acetaminophen and tryptophan

Highly sensitive and efficient hydrazine sensor probe development based on MoO3/CuO/ZnO ternary mixed metal oxide nano‐composites for sustainable environment

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Highly sensitive and efficient hydrazine sensor probe development based on MoO₃/CuO/ZnO ternary mixed metal oxide nano‐composites for sustainable environment