Hassan F. Askal

Spectroscopic Analytical Study for the Charge-Transfer Complexation of Certain Cephalosporins with Chloranilic Acid

Gamal A. Saleh, Hassan F. Askal, Ibrahim A. Darwısh et al. · Analytical Sciences · 2003 · 78 citations · Full text

Organic Charge-transfer Compound, Bioorganic Chemistry, Chloranilic Acid +10

Colourimetric and AAS determination of cephalosporins using Reineck's salt

Hesham Salem, Hassan F. Askal · Journal of Pharmaceutical and Biomedical Analysis · 2002 · 59 citations

Biochemistry, Bioanalysis, Aas Determination +8

Simple fluorimetric method for determination of certain antiviral drugs via their oxidation with cerium (IV)

Ibrahim A. Darwısh, Alaa Khedr, Hassan F. Askal et al. · Il Farmaco · 2005 · 57 citations

Medicine, Bioanalysis, Simple Fluorimetric Method +10

Selective spectrophotometric method for the determination of ascorbic acid in pharmaceutical preparations and fresh fruit juices

Enaam Y. Backheet, Kamla M. Emara, Hassan F. Askal et al. · The Analyst · 1991 · 56 citations

Food Chemistry, Ascorbic Acid, Biochemistry +14

Utility of certain π-acceptors for the spectrophotometric determination of some penicillins

Hassan F. Askal, Gamal A. Saleh, Nabil M. Omar · The Analyst · 1991 · 48 citations

Pharmaceutical Science, Bioorganic Chemistry, Common Degradation Products +20