A simple single jar "on-off fluorescence" designed system for the determination of mitoxantrone using an eosin Y dye in raw powder, vial, and human biofluids by Hamad, Ahmed Abdulhafez, Ali, Ramadan, Derayea, Sayed M

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Square-wave Adsorptive Anodic Stripping Voltammetric Determination of Antidiabetic Drug Linagliptin in Pharmaceutical Formulations and Biological Fluids Using a Pencil Graphite Ele... by NAGGAR, Ahmed. H., SALEH, Gamal. A., OMAR, Mahmoud. A., HAREDY, Ahmed. M., DERAYEA, Sayed. M.

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A novel and unusual utility of the cardiosintol drug as a fluoro-prober in the amendment of a highly fluorescent module for determining the non-fluorescent N-acetylcysteine drug by Hamad, Ahmed A., Derayea, Sayed M.

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Application of a xanthene dye, eosin Y, as spectroscopic probe in chemical and pharmaceutical analysis; a review by Derayea, Sayed M., Nagy, Dalia M.

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One-pot reaction for determination of Asenapine maleate through facile complex formation with xanthine based dye: Application to content uniformity test by Abu-hassan, Ahmed A., Ali, Ramadan, Derayea, Sayed M.

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Utilizing erythrosine B absorption spectrum shifts for quantitative determination of octreotide and bromocriptine in their pure forms and pharmaceutical formulations. Evaluation of... by Derayea, Sayed M., Abdulrazik, Shrouk G., Attia, Tamer Z.

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An application of eosin Y for the selective spectrophotometric and spectrofluorimetric determination of mebeverine hydrochloride by Derayea, Sayed M. S.

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A new convenient methodology based on dihydropyridine derivative for selective fluorimetric analysis of baclofen: Application to spiked urine and content uniformity evaluation by Abu-hassan, Ahmed A., Ali, Ramadan, Derayea, Sayed M.

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Quantitative spectrofluorimetric method for determination of octreotide acetate synthetic peptide derivative in pure and its Sandostatin ampules forms by Derayea, Sayed M., Abdulrazik, Shrouk G., Attia, Tamer Z.

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The first spectrofluorimetric protocol for sensitive quantitative analysis of bromocriptine in its pure and pharmaceutical forms: evaluation of the greenness of the method by Abdulrazik, Shrouk G, Attia, Tamer Z, Derayea, Sayed M

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Photoluminescence detection of nadifloxacin: Adopts switching off photoinduced electron transfer (PET) by Mohamed, Abobakr A., Omar, Mahmoud A., Derayea, Sayed M., Elsayed, Mohamed Ahmed, Mostafa, Islam M.

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Studying the kinetic of midodrine degradations using TLC stability approach: Application to dosage form and human plasma by Nagi, Dalia M., Abdelgaleel, Mahmoud, Derayea, Sayed M., Khashaba, Pakinaz Y.

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Novel eco-friendly HPTLC method using dual-wavelength detection for simultaneous quantification of duloxetine and tadalafil with greenness evaluation and application in human plasm... by Derayea, Sayed M., Zaafan, Al Amir S., Nagy, Dalia M., Oraby, Mohamed, Amir, Al, Zaafan, S.

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Development of a simple validated spectrofluorometric method for the assay of midodrine in tablets dosage form; Application to content uniformity testing by Khashaba, Pakinaz Y., Abdelgaleel, Mahmoud, Derayea, Sayed M., Nagy, Dalia M.

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Enhancing simultaneous determination of some angiotensin II receptor antagonists and amlodipine in plasma using HPTLC with fluorescence densitometry: Independent fluorescence detec... by Khorshed, Ahmed A., Abdelnaeem, Fatma M., Derayea, Sayed M., Nagy, Dalia M., Oraby, Mohamed

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One-pot micellar augmented native fluorescence for facile fluorimetric assay of dapoxetine hydrochloride in biological plasma and tablets by Abu-hassan, Ahmed A., Ali, Ramadan, Derayea, Sayed M.

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Evaluation of the on–off fluorescence method for facile measurement of vilazodone in pharmaceutical dosage form; Application to content uniformity testing and greenness evaluation... by Amir S. Zaafan, Al, Derayea, Sayed M., Nagy, Dalia M., Oraby, Mohamed

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Augmentation of Brexpiprazole fluorescence through photoinduced electron transfer inhibition for the sensitive spectrofluorimetric assay of pharmaceutical dosage forms and spiked h... by Derayea, Sayed M., Amir S. Zaafan, Al, Nagi, Dalia A, Oraby, Mohamed

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Integrated spectroscopic approaches for the facile one pot quantification of olanzapine in pharmaceutical formulation and spiked human plasma by Samir, Ebtihal, Derayea, Sayed M, Badr-eldin, Khaled M., Madian, Huda, Hamad, Ahmed Abdulhafez

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Novel spectrofluorometric approach for assessing vilazodone by blocking photoinduced electron transfer: analytical performance, and greenness-blueness evaluation by Derayea, Sayed M, Elhamdy, Hadeer A, Badr El-Din, Khalid M, Oraby, Mohamed

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