All Stories

  1. Direct Injection Microemulsion HPLC Method for Simultaneous Determination of Morphine, Tramadol and Lornoxicam in Biological Fluids Using Monolithic Column

    Article • Current Pharmaceutical Analysis, September 2020, Bentham Science Publishers

    Sahar Zayed, Prof Sayed Derayea, Dr sahar zayed, Dr ’Mohamed A. Hammad

  2. A review on the use of fluorescamine as versatile and convenient analytical probe

    Article • Microchemical Journal, July 2020, Elsevier

    Prof Sayed Derayea

  3. Applications of Ion-Exchange Chromatography in Pharmaceutical Analysis

    Article • January 2019, Springer Science + Business Media

    Prof Sayed Derayea

  4. A highly sensitive fluorimetric protocol based on isoindole formation for determination of gabapentin

    Article • RSC Advances, January 2019, Royal Society of Chemistry

    Prof Sayed Derayea

  5. A Validated Enantioselective HPLC Method for Assay of S-Amlodipine Using Crown Ether as a Chiral Stationary Phase

    Article • Current Analytical Chemistry, March 2017, Bentham Science Publishers

    Prof Sayed Derayea

  6. Solid-State FTIR Spectroscopic Study of Two Binary Mixtures: Cefepime-Metronidazole and Cefoperazone-Sulbactam

    Article • Journal of Spectroscopy, January 2017, Hindawi Publishing Corporation

    Prof Sayed Derayea, Ramadan Ali

  7. Sensitive Spectrofluorimetric Protocol for the Determination of Fluoxetine and Paroxetine Through Binary Complex Formation with Eosin Y

    Article • Analytical Chemistry Letters, September 2016, Taylor & Francis

    Prof Sayed Derayea, Ramadan Ali

  8. Highly sensitive spectrofluorimetric method for determination of doxazosin through derivatization with fluorescamine; Application to content uniformity testing

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, March 2016, Elsevier

    Prof Sayed Derayea, baher Salman

  9. Specific and highly sensitive spectrofluorimetric method for determination of febuxostat in its tablets and real human plasma. Application to stability studies

    Article • RSC Advances, January 2016, Royal Society of Chemistry

    Prof Sayed Derayea

  10. New valid spectrofluorimetric method for determination of selected cephalosporins in different pharmaceutical formulations using safranin as fluorophore

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, January 2016, Elsevier

    Prof Sayed Derayea

  11. Simultaneous determination of paracetamol, caffeine and codeine in tablets and human plasma by micellar liquid chromatography

    Article • European Journal of Chemistry, December 2015, European Journal of Chemistry

    Prof Sayed Derayea, Sahar Zayed

  12. Development and validation of a stability-indicating spectrofluorimetric method for the determination of H1N1 antiviral drug (oseltamivir phosphate) in human plasma through the Hantzsch reaction

    Article • RSC Advances, January 2015, Royal Society of Chemistry

    Professor Sayed M Derayea, Dr Mahmoud Ahmed Omer, Prof Sayed Derayea

  13. Validated spectrofluorimetric method for determination of selected aminoglycosides

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, January 2015, Elsevier

    Professor Sayed M Derayea, Prof Sayed Derayea

  14. Enhancement of the sensitivity of valacyclovir and acyclovir for their spectrofluorimetric determination in human plasma

    Article • RSC Advances, January 2015, Royal Society of Chemistry

    Dr Mahmoud Ahmed Omer, Prof Sayed Derayea

  15. Chiral separation of perindopril erbumine enantiomers using high performance liquid chromatography and capillary electrophoresis

    Article • Analytical Methods, January 2014, Royal Society of Chemistry

    Professor Sayed M Derayea, Prof Sayed Derayea

  16. An application of eosin Y for the selective spectrophotometric and spectrofluorimetric determination of mebeverine hydrochloride

    Article • Analytical Methods, January 2014, Royal Society of Chemistry

    Professor Sayed M Derayea, Prof Sayed Derayea

  17. Spectrofluorimetric and TLC-densitometric methods for a stability indicating assay of valacyclovir hydrochloride in the presence of its degradation product

    Article • RSC Advances, January 2014, Royal Society of Chemistry

    Professor Sayed M Derayea, Prof Sayed Derayea

  18. Effect of Cytochrome P450 2C19 and 2C9 Amino Acid Residues 72 and 241 on Metabolism of Tricyclic Antidepressant Drugs

    Article • Chemical and Pharmaceutical Bulletin, January 2014, Pharmaceutical Society of Japan

    Professor Sayed M Derayea, Prof Sayed Derayea

  19. Spectrofluorimetric protocol for antidepressant drugs in dosage forms and human plasma through derivatization with dansyl chloride

    Article • Arabian Journal of Chemistry, December 2013, Elsevier

    Professor Sayed M Derayea, Prof Sayed Derayea

  20. Spectrophotometric Method for Determination of Five 1,4-Dihydropyridine Drugs Using N-Bromosuccinimide and Indigo Carmine Dye

    Article • International Journal of Spectroscopy, August 2013, Hindawi Publishing Corporation

    Professor Sayed M Derayea, Prof Sayed Derayea

  21. Spectrofluorimetric determination of certain antidepressant drugs in human plasma

    Article • Journal of Analytical Science & Technology, April 2013, Springer Science + Business Media

    Professor Sayed M Derayea, Prof Sayed Derayea

  22. A Novel Spectrophotometric Method for Determination of Five 1,4-Dihydropyridine Drugs in Their Tablets and Capsules Using Vanillin Reagent

    Article • American Journal of Analytical Chemistry, January 2013, Scientific Research Publishing, Inc,

    Professor Sayed M Derayea, Prof Sayed Derayea

  23. Spectrophotometric determination of amlodipineand nicardipine in pharmaceutical formulations viabinary complex formation with eosin Y

    Article • Journal of Applied Pharmaceutical Science, June 2012, Journal of Applied Pharmaceutical Science

    Professor Sayed M Derayea, Prof Sayed Derayea

  24. Comparison of Cytochrome P450 Mediated Metabolism of Three CNS Acting Drugs

    Article • Chemical and Pharmaceutical Bulletin, January 2012, Pharmaceutical Society of Japan

    Professor Sayed M Derayea, Prof Sayed Derayea