Optical sensor for sulfur dioxide based on fluorescence quenchingRAZEK, T. M. A; MILLER, M. J; HASSAN, S. S. M et al.Talanta (Oxford). 1999, Vol 50, Num 3, pp 491-498, issn 0039-9140Article

Amperometric flow injection determination of putrescine and putrescine oxidaseMARZOUK, S. A. M; XU, C. X; COSOFRET, B. R et al.Analytica chimica acta. 1998, Vol 363, Num 1, pp 57-65, issn 0003-2670Article

Spectrophotometric and spectrofluorimetric determination of fluorouracil in the presence of its degradation productsAMER, M. M; HASSAN, S. S. M; EL-FATAH, S. A. A et al.Journal of pharmacy and pharmacology. 1998, Vol 50, Num 2, pp 133-138, issn 0022-3573Article

Hydrogen chromate PVC matrix membrane sensor for potentiometric determination of chromium(III) and chromium(VI) ionsHASSAN, S. S. M; ABBAS, M. N; MOUSTAFA, G. A. E et al.Talanta (Oxford). 1996, Vol 43, Num 5, pp 797-804, issn 0039-9140Article

Metalloporphyrin-based polymer membrane electrode with high selectivity for 2-hydroxybenzhydroxamateBADR, I. H. A; MEYERHOFF, M. E; HASSAN, S. S. M et al.Analytica chimica acta. 1996, Vol 321, Num 1, pp 11-19, issn 0003-2670Article

Selective determination of thiamine (vitamin B₁) in pharmaceutical preparations by direct potentiometric argentometric titration with use of the silver-silver sulphide ion-selective electrodeHASSAN, S. S. M; ELNEMMA, E.Talanta (Oxford). 1989, Vol 36, Num 10, pp 1011-1015, issn 0039-9140Article

Direct determination of benzylnitriles using the cyanide ion selective electrodeHASSAN, S. S. M; MARI, M. A.Mikrochimica acta (1966. Print). 1986, Vol 1, Num 3-4, pp 201-205, issn 0026-3672Article

Caffeine-picrylsulfonate liquid membrane electrode for selective determination of caffeine in analgesic preparationsHASSAN, S. S. M; AHMED, M. A; SAOUDI, M. M et al.Analytical chemistry (Washington, DC). 1985, Vol 57, Num 6, pp 1126-1130, issn 0003-2700Article

A novel ferroin membrane sensor for potentiometric determination of ironHASSAN, S. S. M; MARZOUK, S. A. M.Talanta (Oxford). 1994, Vol 41, Num 6, pp 891-899, issn 0039-9140Article

Polyvinyl chloride matrix membrane electrodes for manual and flow injection analysis of chloroquine in pharmaceutical preparationsHASSAN, S. S. M; HAMED, M. A.Journal - Association of official analytical chemists. 1991, Vol 74, Num 6, pp 900-905, issn 0004-5756Article

Chemical speciation of chromium(III,VI) employing extractive spectrophotometry and tetraphenylarsonium chloride or tetraphenylphosphonium bromide as ion-pair reagentEL-SHAHAWI, M. S; HASSAN, S. S. M; OTHMAN, A. M et al.Analytica chimica acta. 2005, Vol 534, Num 2, pp 319-326, issn 0003-2670, 8 p.Article

Determination of metformin in pharmaceutical preparations using potentiometry, spectrofluorimetry and UV-visible spectrophotometryHASSAN, S. S. M; MAHMOUD, W. H; ELMOSALLAMY, M. A. F et al.Analytica chimica acta. 1999, Vol 378, Num 1-3, pp 299-311, issn 0003-2670Article

A novel potassium ion membrane sensor based on rifamycin neutral ionophoreHASSAN, S. S. M; MAHMOUD, W. H; OTHMAN, A. H. M et al.Talanta (Oxford). 1997, Vol 44, Num 6, pp 1087-1094, issn 0039-9140Article

Amperometric monitoring of lactate accumulation in rabbit ischemic myocardiumMARZOUK, S. A. M; COSOFRET, V. V; BUCK, R. P et al.Talanta (Oxford). 1997, Vol 44, Num 9, pp 1527-1541, issn 0039-9140Article

Determination of ranitidine in pharmaceutical preparations using manual and flow injection potentiometry and spectophotometryHASSAN, S. S. M; MAHMOUD, W. H; OTHMAN, A. H. M et al.Analytica chimica acta. 1996, Vol 332, Num 1, pp 39-48, issn 0003-2670Article

PVC matrix membrane electrodes based on cobalt and nickel phenanthroline complexes for selective determination of cobalt(II) and nickel(II) ionsHASSAN, S. S. M; MAHMOUD, W. H.Mikrochimica acta (1966. Print). 1995, Vol 117, Num 3-4, pp 121-128, issn 0026-3672Article

PVC membrane electrodes for manual and flow-injection determination of tetraphenylborate : applications to separate and sequential titrations of some metal ionsHASSAN, S. S. M; BADR, I. H. A.Talanta (Oxford). 1994, Vol 41, Num 4, pp 523-530, issn 0039-9140Article

Potentiometric gas sensor for the selective determination of azidesHASSAN, S. S. M; AHMED, M. A; MARZOUK, S. A. M et al.Analytical chemistry (Washington, DC). 1991, Vol 63, Num 15, pp 1547-1552, issn 0003-2700Article

Amphetamine selective electrodes based on dibenzo-18-crown-6 and dibenzo-24-crown-8 liquid membranesHASSAN, S. S. M; ELNEMMA, E. M.Analytical chemistry (Washington, DC). 1989, Vol 61, Num 19, pp 2189-2192, issn 0003-2700Article

Performance characteristics and some applications of the nitrogen oxide gas sensorHASSAN, S. S. M; TADROS, F. S.Analytical chemistry (Washington, DC). 1985, Vol 57, Num 1, pp 162-166, issn 0003-2700Article

Determination of diclofenac in pharmaceutical preparations using a novel PVC membrane sensorHASSAN, S. S. M; MAHMOUD, W. H; ELMOSALLAMY, M. A. F et al.Pharmazie. 2003, Vol 58, Num 1, pp 29-31, issn 0031-7144, 3 p.Article

Direct potentiometry and potentiotitrimetry of warfarin and ibuprofen in pharmaceutical preparations using PVC ferroin-based membrane sensorsHASSAN, S. S. M; MAHMOUD, W. H; ABDEL-SAMAD, M. S et al.Mikrochimica acta (1966. Print). 1998, Vol 129, Num 3-4, pp 251-257, issn 0026-3672Article

Ribonucleic acid as a novel ionophore for potentiometric membrane sensors of some transition metal ionsHASSAN, S. S. M; MAHMOUD, W. H; OTHMAN, A. H. M et al.Talanta (Oxford). 1998, Vol 47, Num 2, pp 377-385, issn 0039-9140Article

Membrane sensors for batch and flow injection potentiometric determination of ethamsylate (cyclonamine) in pharmaceutical preparationsHASSAN, S. S. M; EL-BAHNASAWY, R. M; RIZK, N. M et al.Mikrochimica acta (1966. Print). 1997, Vol 126, Num 3-4, pp 217-222, issn 0026-3672Article

Determination of glafenine in dosage forms and serum by thin layer densitometry and high performance liquid chromatographyHASSAN, S. S. M; ELNEMMA, E. M; ABBAS, A. B et al.Journal of pharmaceutical and biomedical analysis. 1997, Vol 16, Num 2, pp 215-221, issn 0731-7085Article