Abdelatty Mohamed Radalla

Abdelatty Mohamed Radalla

Qassim University

H-index: 7

Asia-Saudi Arabia

About Abdelatty Mohamed Radalla

Abdelatty Mohamed Radalla, With an exceptional h-index of 7 and a recent h-index of 6 (since 2020), a distinguished researcher at Qassim University, specializes in the field of Chemistry.

Abdelatty Mohamed Radalla Information

University

Qassim University

Position

___

Citations(all)

164

Citations(since 2020)

52

Cited By

135

hIndex(all)

7

hIndex(since 2020)

6

i10Index(all)

7

i10Index(since 2020)

1

Email

University Profile Page

Qassim University

Abdelatty Mohamed Radalla Skills & Research Interests

Chemistry

Top articles of Abdelatty Mohamed Radalla

Complexation equilibria and determination of stability constants of some divalent metal ion complexes of L-cysteine and diphenylamine in aqueous media

In this paper we report the formation of binary and ternary nickel(II) complexes involving dipicolinic acid (H2Dipic) as the primary ligand and some selected amino acids {glycine (HGly), ⍺-alanine (H⍺-Ala), β-alanine (Hβ-Ala) and proline (HPro)} as secondary ligands. These complexes were studied at 25 °C by means of electromotive force measurements, emf(H), using 1.0 mol⋅dm−3 NaCl as the ionic medium. The experimental data were analyzed by means of the computational least-squares program LETAGROP, taking into account hydrolysis of the nickel(II) cation and the acid/base reactions of the ligands whose equilibrium constants were kept fixed during the analysis. In the study of the binary nickel(II)–amino acids systems the species [NiL]+, NiL2 and [NiL3]− were observed, and in the case of the ternary nickel(II)–dipicolinic acid–amino acids systems the complexes Ni(Dipic)HL, [Ni(Dipic)L …

Authors

Rosana Hernández,Rosangel Rodríguez,José Daniel Martínez,Mary Lorena Araujo,Felipe Brito,Giuseppe Lubes,Mildred Rodríguez,Lino Hernández,Vito Lubes

Journal

Journal of solution chemistry

Published Date

2012/8

Coulometric and Chronoamperometric Studies on Bisulfite Reduction at a Surfactant/Myoglobin Film on Glassy Carbon Electrode

Background. The redox-active protein, myoglobin (Mb), exchanges electrons very slowly with bare electrodes. Just like on a highly oriented pyrolytic graphite (HOPG) bare electrode, electron transfer between myoglobin (Mb) and a bare glassy carbon (GC) electrode was not observed. The myoglobin (Mb) in di-dodecyl dimethyl ammonium bromide (DDAB) film immobilized on glassy carbon electrode surface had a good charge transport, allowing Mb to be used as a redox catalyst for multi-electron transfer reactions. Objective. We report here the myoglobin on a glassy carbon (GC) electrode as a catalyst for the multi-electron reduction of bisulfite in aqueous buffered solutions. Methods. Coulometry and chronoamperometry are used as tools to probe the Mb/DDAB film on GC electrode as an effective electro-catalyst for the multi-electron reduction of bisulfite. Results. Variation in current with time of bisulfite reduction followed first-order reaction kinetics. The heterogeneous electron transfer rate constant of the film and catalytic rate constant for the reduction of bisulfite were determined. Conclusion. The study confirmed that bisulfite was the reactive species and the catalytic reduction reaction at Mb/DDAB film followed the EC’catalytic mechanism.

Authors

Abdelatty Mohamed Radalla

Journal

American Journal of Chemical Engineering

Published Date

2022/3

Potentiometric Investigation on Complex Formation and Stabilities of Some Divalent Metal Ions with l-Cysteine and Glycine as Ligands in Aqueous Solutions

Complexes of the divalent metal ions, Ca2+ and Zn2+ with the bio-relevant α-amino acids, l-cysteine and glycine were investigated by means of the potentiometric technique. The dissociation constants of the bio-ligands were determined and used for determining the stability constants of their binary and ternary complexes formed in aqueous solutions at 25 ± 0.1 °C and constant ionic strength of 0.20 mol·dm−3 NaNO3. The acid–base properties of glycine were investigated at different ionic strengths, ranging from 0.01 to 0.30 mol·dm−3 NaNO3 at 25.0 ± 0.1 °C. The concentration distribution of the different glycine species formed in solution due to variation of pH was evaluated and discussed. The formation of the different 1:1 and 1:2 binary complexes and 1:1:1 ternary complexes were inferred from the potentiometric pH-metric titration curves. The ternary complex formation occurred in a stepwise manner …

Authors

Abdelatty Mohamed Radalla

Journal

Journal of Solution Chemistry

Published Date

2021/7

Abdelatty Mohamed Radalla FAQs

What is Abdelatty Mohamed Radalla's h-index at Qassim University?

The h-index of Abdelatty Mohamed Radalla has been 6 since 2020 and 7 in total.

What are Abdelatty Mohamed Radalla's top articles?

The articles with the titles of

Complexation equilibria and determination of stability constants of some divalent metal ion complexes of L-cysteine and diphenylamine in aqueous media

Coulometric and Chronoamperometric Studies on Bisulfite Reduction at a Surfactant/Myoglobin Film on Glassy Carbon Electrode

Potentiometric Investigation on Complex Formation and Stabilities of Some Divalent Metal Ions with l-Cysteine and Glycine as Ligands in Aqueous Solutions

are the top articles of Abdelatty Mohamed Radalla at Qassim University.

What are Abdelatty Mohamed Radalla's research interests?

The research interests of Abdelatty Mohamed Radalla are: Chemistry

What is Abdelatty Mohamed Radalla's total number of citations?

Abdelatty Mohamed Radalla has 164 citations in total.

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