Investigations on the redox behaviour of manganese in manganese(II)–saccharin and manganese(II)–saccharin–1,10-phenanthroline complexes

Islam, Gazi Jahirul; Akhtar, H. M. Naseem; Mamun, Mohammad Al; Ehsan, Mohammad

doi:10.1016/j.jscs.2009.05.002

Cited by 13 publications

(9 citation statements)

References 2 publications

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“…Also, the current ratio of oxidation-reduction current peaks of FeII/FeIII was Ipa/Ipc ≈ 1. This demonstrates that the new modified electrode GP/SiO 2 NPs/GCE functioned as a reversible electrode [17], and the potential peak separation of ΔEpa-c ≈ 100 mV suggests that the reaction at the modified electrode was a homogenous process [18].…”

Section: Characterization Of Different Modified Electrodementioning

confidence: 78%

Performance Improvement of Working Electrode Using Grafted Polymer Modified with SiO2 Nanoparticles

Radhi¹,

Moosa²,

Khalaf³

2018

Nano BioMed ENG

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A new modified glassy carbon electrode (GCE) with grafted polymer (GP)/SiO 2 nanoparticles (SiO 2 NPs) were prepared using mechanical attachment method to produce a new sensor in cyclic voltammetric technique. The new working electrode GP/SiO 2 NPs/GCE was characterized by a standard solution of 1 mM K 4 [Fe(CN) 6 ] with 1 M K 2 HPO 4 as an electrolyte to study the redox current peaks of FeII/FeIII ions at different concentrations such as scan rate, pH, determination of diffusion coefficient (D f), reliability and stability of the modified GCE. It was found that the new modified electrode enhanced the redox current peaks of FeII/FeIII from 12 µA to 20 µA and-5 µA to-15 µA for oxidation and reduction peaks in GCE, repectevely. So, the current ratio (Ipa/Ipc) for the new modified electrode was 1, and the potential peak separation (ΔEpa-c) was 100 mV, which indicated good electrochemical properties as an irreversible electrode and heterogeneous reaction. Good reliability and stability of modified GCE was obseved with low detection limit. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) analysis of the nano-deposit was also studied.

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Section: Characterization Of Different Modified Electrodementioning

confidence: 78%

Performance Improvement of Working Electrode Using Grafted Polymer Modified with SiO2 Nanoparticles

Radhi¹,

Moosa²,

Khalaf³

2018

Nano BioMed ENG

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“…4. A linear relationship was found from the equation of reduction peak is Y=153.28X+6.9013 with high sensitivity R 2 =0.9693, it means that the redox process of saffron compound in blood medium was reactant in homogeneous process [17].…”

Section: Scan Rate Studymentioning

confidence: 93%

Voltammetric study of saffron in blood mediated by modified glassy carbon electrode (GCE) with carbon nanotube (CNT/GCE)

Radhi¹,

Khalaf²,

Ali³

et al. 2018

Epitoanyag - JSBCM

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“…One of the electrochemical properties which was used to characterization saffron was different scan rates, so as to confirm the redox current peaks and also to calculate the diffusion coefficient by Randel equation [16]. Fig.…”

Section: Effect Of Different Scan Ratementioning

confidence: 99%

Saffron in KCl Mediated by Glassy Carbon Electrode Using Cyclic Voltammetry

Radhi¹,

Jawad²,

Al-Mulla³

2018

Nano BioMed ENG

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Saffron in aqueous solution was studied via electrochemical analysis with KCl as a supporting electrolyte using cyclic voltammetric technique to determine the redox current peaks at different concentration, pH and scan rate (SR). It was found that an oxidation current peak appeared at potential +268 mV and two reduction current peaks at −282 and −850 mV. The oxidation current peak of saffron disappeared in alkaline medium at pH = 12. An enhancement was observed in acidic medium at pH = 6. Based on Randel equations and by using different scan rates, the diffusion coefficient (D f) for oxidation-reduction current peaks of saffron in KCl solution was determined with nearly equal values as of 1.87×10 −5 and 1.12×10 −5 cm 2 /s, respectively. The results indicate a low detection limit of the different concentrations of saffron in KCl solution as determined from the calibration graph, and a high reliability revealed by the relative standard deviation (RSD). Stability of the GCE for oxidationreduction current peaks was recorded as ± 7.12% and ± 1.04%, respectively.

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Investigations on the redox behaviour of manganese in manganese(II)–saccharin and manganese(II)–saccharin–1,10-phenanthroline complexes

Cited by 13 publications

References 2 publications

Performance Improvement of Working Electrode Using Grafted Polymer Modified with SiO2 Nanoparticles

Performance Improvement of Working Electrode Using Grafted Polymer Modified with SiO2 Nanoparticles

Voltammetric study of saffron in blood mediated by modified glassy carbon electrode (GCE) with carbon nanotube (CNT/GCE)

Saffron in KCl Mediated by Glassy Carbon Electrode Using Cyclic Voltammetry

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