Determination by AAS of some trace heavy metal ions in some natural and biological samples after their preconcentration using newly chemically modified chloromethylated … IMM Kenawy, MAH Hafez, MA Akl, RR Lashein Analytical sciences 16 (5), 493-500, 2000 | 164 | 2000 |
Adsorption of Cu (II), Cd (II), Hg (II), Pb (II) and Zn (II) from aqueous single metal solutions by guanyl-modified cellulose IM Kenawy, MAH Hafez, MA Ismail, MA Hashem International journal of biological macromolecules 107, 1538-1549, 2018 | 163 | 2018 |
Preconcentration and separation of total mercury in environmental samples using chemically modified chloromethylated polystyrene-PAN (ion-exchanger) and its determination by … MAH Hafez, IMM Kenawy, MA Akl, RR Lashein Talanta 53 (4), 749-760, 2001 | 129 | 2001 |
Removal, preconcentration and determination of trace heavy metal ions in water samples by AAS via chemically modified silica gel N-(1-carboxy-6-hydroxy) benzylidenepropylamine … ME Mahmoud, IMM Kenawy, MMAH Hafez, RR Lashein Desalination 250 (1), 62-70, 2010 | 128 | 2010 |
Spectrophotometric and complexometric methods for the determination of thorium and fluoride using bromocresol orange reagent ME Khalifa, MAH Hafez Talanta 47 (3), 547-559, 1998 | 69 | 1998 |
New real time and conventional RT-PCRs for updated molecular diagnosis of infectious bronchitis virus infection (IBV) in chickens in Egypt associated with frequent co … MM Naguib, MF El-Kady, D Lüschow, KE Hassan, AS Arafa, A El-Zanaty, ... Journal of virological methods 245, 19-27, 2017 | 49 | 2017 |
Chemical modification of chloromethylated polystyrene with pyridylazo‐β‐naphthol MY Abdelaal, IMM Kenawy, MAH Hafez Journal of applied polymer science 77 (14), 3044-3048, 2000 | 37 | 2000 |
Electrochemical synthesis of benzoylglycine and ethylphthaloyl-glycine complexes of transition metal ions AA El-Asmy, MA Hafez, EM Saad, FI Taha Transition Metal Chemistry 19, 603-605, 1994 | 35 | 1994 |
Selective preconcentration of uranyl ion by silica gel phases modified with chelating compounds as inorganic polymeric ion exchangers ME Mahmoud, IMM Kenawy, EM Soliman, MA Hafez, MAA Akl, ... Analytical Sciences 24 (3), 381-387, 2008 | 26 | 2008 |
Synthesis and characterization of novel ion-imprinted guanyl-modified cellulose for selective extraction of copper ions from geological and municipality sample IM Kenawy, MA Ismail, MAH Hafez, MA Hashem International journal of biological macromolecules 115, 625-634, 2018 | 21 | 2018 |
Synthesis of novel CO32−/Cl−-bearing 3 (Mg+ Zn)/(Al+ Fe) layered double hydroxides for the removal of anionic hazards KS Abou-El-Sherbini, IMM Kenawy, MAH Hafez, HR Lotfy, ... Journal of Environmental Chemical Engineering 3 (4), 2707-2721, 2015 | 19 | 2015 |
Thermal decomposition of chloromethylated poly (styrene)-PAN resin and its complexes with some transition metal ions I Kenawy, M Hafez, R Lashein Journal of thermal analysis and calorimetry 65 (3), 723-736, 2001 | 18 | 2001 |
Some aspects of the preparation, characterization and thermal decomposition of anisaldehyde Girard T complexes of some transition elements MEM Emam, MAH Hafez, MNH Moussa Journal of thermal analysis 37, 1005-1013, 1991 | 17 | 1991 |
Study of the chromogenic reactions of semi-xylenol orange with rare earths and thorium MAH Hafez Analytical letters 25 (9), 1779-1796, 1992 | 16 | 1992 |
Determination of trace amounts of gallium, indium and thallium by successive titrations using semi-xylenol orange with spectrophotometric and/or visual end-point indication M Abd El-HamiedáHafez, MA Amin, TM Abd El-FataháWahdan Analyst 116 (6), 663-666, 1991 | 15 | 1991 |
Antimicrobial activity of Bacillus circulans isolated from rhizosphere of Medicago sativa EA Abada, HH El-Hendawy, ME Osman, MA Hafez Life Science Journal 11 (8), 641-652, 2014 | 14 | 2014 |
Preconcentration and multielement determination in different water samples using cellulose-sodium sulphide and/or the thiourea system with atomic absorption spectrometry IMM Kenawy, MAH Hafez Analusis 7 (24), 275-280, 1996 | 14 | 1996 |
Thermodynamics of complexation of some transition metal ions by salicylaldehyde carbohydrazone pyridinium chloride and diacetyl carbohydrazone pyridini I Shehatta, MNH Moussa, MA Hafez Thermochimica acta 219, 121-133, 1993 | 12 | 1993 |
Study of the thermal decomposition of some new cyanine dispersed dyes MEM Emam, IMM Kenawy, MAH Hafez Journal of thermal analysis and calorimetry 63, 75-83, 2001 | 11 | 2001 |
Complexometric determination of some toxic mixtures of ions using bromo-cresol orange with visual endpoint indication MAH Hafez, ME Khalifa Talanta 44 (5), 787-796, 1997 | 9 | 1997 |