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GB El-Hefnawy
GB El-Hefnawy
Prof. Chemistry Department, Faculty of Science, Tanta University, Egypt
Verified email at science.tanta.edu.eg - Homepage
Title
Cited by
Cited by
Year
Thermal and spectral studies of 5-(phenylazo)-2-thiohydantoin and 5-(2-hydroxyphenylazo)-2-thiohydantoin complexes of cobalt (II), nickel (II) and copper (II)
SS Kandil, GB El-Hefnawy, EA Baker
Thermochimica acta 414 (2), 105-113, 2004
1622004
Facile synthesis of polyaniline nanoparticles; its adsorption behavior
M Ayad, G El-Hefnawy, S Zaghlol
Chemical engineering journal 217, 460-465, 2013
1602013
Voltammetry and determination of metronidazole at a carbon fiber microdisk electrode
PN Bartlett, E Ghoneim, G El-Hefnawy, I El-Hallag
Talanta 66 (4), 869-874, 2005
1142005
Synthesis, spectral and thermal studies of Mn (II), Co (II), Ni (II), Cu (II) and Zn (II) complex dyes based on hydroxyquinoline moiety
M Gaber, GB El-Hefnawy, MA El-Borai, NF Mohamed
Journal of thermal analysis and calorimetry 109 (3), 1397-1405, 2012
402012
Cobalt (II), nickel (II) and copper (II) complexes of 5-(2-carboxyphenylazo)-2-thiohydantoin
SS Kandil, GB El-Hefnawy, EA Bakr, AZ Abou El-Ezz
Transition metal chemistry 28, 168-175, 2003
382003
Electrochemical behavior and determination of amiloride drug in bulk form and pharmaceutical formulation at mercury electrodes
GB El-Hefnawy, IS El-Hallag, EM Ghoneim, MM Ghoneim
Journal of pharmaceutical and biomedical analysis 34 (5), 899-907, 2004
242004
Dyeing, color fastness and antimicrobial properties of some mono and disazo disperse dyes derived from thiazole moiety
MA El-Borai, HF Rizk, GB El-Hefnawy, HF El-Sayed, SA Ibrahim
Fibers and Polymers 14, 2061-2068, 2013
182013
Synthesis and application of some azo and azomethine dyes containing pyrazolone moiety
HF Rizk, MA El‐Borai, GB El‐Hefnawy, HF El‐Sayed
Chinese Journal of Chemistry 27 (7), 1359-1364, 2009
182009
Electrochemical studies of Schiff base compounds derived from antipyrine nucleus in ethanolic buffer solutions
IS El-Hallag, GB El-Hefnawy, YI Moharram, EM Ghoneim
Canadian Journal of Chemistry 78 (9), 1170-1177, 2000
172000
Synthesis and spectral characterization of novel azomethine disperse dyes derived from pyrazolone moiety and their dyeing performance on polyester fabrics
MA El-Borai, HF Rizk, GB El-Hefnawy, SA Ibrahim, SS Aser, HF El-Sayed
Fibers and Polymers 17, 729-737, 2016
152016
Square-wave adsorptive cathodic stripping voltammetric determination of anti-inflammatory indomethacin drug in tablets and human serum at a mercury electrode
GB El-Hefnawy, IS El-Hallag, EM Ghoneim, MM Ghoneim
Analytical and bioanalytical chemistry 376, 220-225, 2003
112003
Charge transfer complexes of methylnaphthalene derivatives with TCNE in CCI4
MM Ayad, GB El-Hefnawy, GW Bahlol
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 58 (1 …, 2002
92002
Preparation of Cr (III), Co (II), Ni (II) and Cu (II) complexes with azopyrazolone derivatives and their dyeing performance on wool fabric
GB El-Hefnawy, MA El-Borai, ESA Aly, AA Gabr
NISCAIR-CSIR, India, 1992
91992
Synthesis and structures of Octaaza NiII and CuII macrocyclic complexes containing biimidazole
GB El-Hefnawy, M El-Kersh, SH Etaiw, R El-Tabbakh
Polyhedron 16 (23), 3997-4004, 1997
71997
Fastness properties of Cr (III), Co (II) and Cu (II) complexes containing monoazopyrazolone nucleus on wool and polyester/wool blend
GB El-Hefnawy, MA El-Borai, AA Gabr
INDIAN JOURNAL OF FIBRE AND TEXTILE RESEARCH 17, 160-160, 1992
51992
Preparation and spectroscopic characterization of copper (II), cobalt (II) and manganese (II) chelates with multidentate bisazodianils as ligands
RM Issa, SM Abu-El-Wafa, GB El-Hefnawy, NA El-Wakeil
Egyptian journal of chemistry 44 (1-3), 99-109, 2001
42001
Vibrational Analysis of New Macrocyclic Imine‐Carbinolamine Complexes of Nickel (II)
SA Amer, GB El‐Hefnawy, GW Saleim, HO Desseyn
Bulletin des Sociétés Chimiques Belges 99 (5), 305-313, 1990
31990
Synthesis and Characterization of New Macrocyclic Imine‐Carbinolamine Complexes of Nickel (II)
SA Amer, GB El‐Hefnawy, GW Seleim, HO Desseyn
Bulletin des Sociétés Chimiques Belges 98 (11), 833-838, 1989
31989
Spectroscopic studies of some schiff bases derived from indole and aniline derivatives or diamino Triazole with benzaldehyde derivatives
GB El Hefnawy, KY El Baradie, A El Tross
Egyptian Journal of Chemistry 36 (3), 177-87, 1993
21993
Synthesis and Characterization of Some Complexes Derived from 3-Azomethine-2-methyl-benzopyrrole Derivatives
GB El-Hefnawy, AEA El-Trass, M Gaber
Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 22 (10 …, 1992
11992
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Articles 1–20