1. Youssef, R.M., S.A. El-Nahass, S.A. Soliman and S.E. Younis, 2021. Development of hybrid spectrofluorimetric method for simultaneous determination of Valsartan and Sacubitril in LCZ696 tablets. Spectrochim. Acta Part A, Vol. 256. 10.1016/j.saa.2021.119748.
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2. El-Yazbi, A.F., F.M. Aboukhalil, E.F. Khamis, R.M. Youssef and M.A. El-Sayed, 2021. Simultaneous determination of mometasone furoate and salicylic acid in complex matrix using green analytical method. Microchem. J., Vol. 163. 10.1016/j.microc.2020.105900.
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3. El-Yazbi, A.F., E.I. El-Kimary and R.M. Youssef, 2019. Hantzsch pre-column derivatization for simultaneous determination of alendronate sodium and its pharmacopoeial related impurity: Comparative study with synchronous fluorometry using fluorescamine. J. Food Drug Anal., 27: 208-220.
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4. Youssef, R.M., M.A. Korany and M.A. Afify, 2014. Development of a stability indicating HPLC-DAD method for the simultaneous determination of mometsone furoate and salicylic acid in an ointment matrix. Anal. Methods, 6: 3410-3419.
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5. Youssef, R.M., E.F. Khamis, M.A. Korany, H. Mahgoub and M.F. Kamal, 2014. Microspectrometric determination of sibutramine in an adulterated slimming formulation. Anal. Methods, 6: 3395-3400.
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6. Youssef, R.M., 2014. Development of gradient HPLC-DAD method for assay of ternary mixture containing amebicide and analgesic drugs. Acta Chromatogr., 26: 67-80.
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7. Youssef, R., E. Khamis, M. El-Sayed and M.A. Moneim, 2014. Development and validation of a high-performance thin-layer chromatographic method for the assay of ternary mixtures containing cetirizine dihydrochloride in pharmaceutical dosage forms. J. Planar. Chromatogr. - Mod. TLC, 27: 58-65.
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8. Mahgoub, H., R.M. Youssef, M.A. Korany, E.F. Khamis and M.F. Kamal, 2014. Development and validation of spectrophotometric and HPTLC methods for simultaneous determination of rosiglitazone maleate and metformin hydrochloride in the presence of interfering matrix excipients. Drug Dev. Indus. Pharma., 40: 1190-1198.
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9. Ragab, M.A.A. and R.M. Youssef, 2013. Simultaneous determination of montelukast and fexofenadine using fourier transform convolution emission data under non- parametric linear regression method. J. Fluoresc., 23: 1329-1340.
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10. Ragab, M.A.A. and R.M. Youssef, 2013. Erratum to: Simultaneous determination of montelukast and fexofenadine using fourier transform convolution emission data under non- parametric linear regression method. J. Fluoresc., 23: 1341-1341.
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11. Youssef, R.M., M.A. Korany, E.F. Khamis, H. Mahgoub and M.F. Kamal, 2011. Kinetic spectrophotometric methods for the determination of artificial sweetener (sucralose) in tablets. Drug Test. Anal., 3: 214-220.
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12. Youssef, R.M., 2010. Determination of mirtazapine in spiked human plasma and tablets by first derivative spectrofluorimetric method. Saudi Pharmaceut. J., 18: 45-49.
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13. Gazy, A.A., H. Mahgoub, E.F. Khamis, R.M. Youssef and M.A. El-Sayed, 2006. Differential pulse, square wave and adsorptive stripping voltammetric quantification of tianeptine in tablets. J. Pharmaceut. Biomed. Anal., 41: 1157-1163.
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