Selective Recovery of Cadmium, Cobalt, and Nickel from Spent Ni–Cd Batteries Using Adogen® 464 and Mesoporous Silica Derivatives
Weshahy, Ahmed R., Sakr, Ahmed K., Gouda, Ayman A., Atia, Bahig M., Somaily, H. H., Hanfi, Mohamed Y., Sayyed, M. I., El Sheikh, Ragaa, El-Sheikh, Enass M., Radwan, Hend A., Cheira, Mohamed F., Gado, Mohamed A.
Published in International journal of molecular sciences (01.08.2022)
Published in International journal of molecular sciences (01.08.2022)
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Journal Article
Recovery of W(VI) from Wolframite Ore Using New Synthetic Schiff Base Derivative
Elbshary, Rawan E, Gouda, Ayman A, El Sheikh, Ragaa, Alqahtani, Mohammed S, Hanfi, Mohamed Y, Atia, Bahig M, Sakr, Ahmed K, Gado, Mohamed A
Published in International journal of molecular sciences (18.04.2023)
Published in International journal of molecular sciences (18.04.2023)
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An efficient ionic liquid-based cloud point extraction to preconcentrate mercury in environmental samples and hair of occupational workers before spectrophotometric detection
Garoub, Mohannad M, Gouda, Ayman A
Published in Bulletin of the Chemical Society of Ethiopia (01.10.2022)
Published in Bulletin of the Chemical Society of Ethiopia (01.10.2022)
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Journal Article
A Novel Triazole Schiff Base Derivatives for Remediation of Chromium Contamination from Tannery Waste Water
Alluhaybi, Ahmad A., Alharbi, Ahmed, Hameed, Ahmed M., Gouda, Ayman A., Hassen, Fatma S., El-Gendy, Hassan S., Atia, Bahig M., Salem, Amany R., Gado, Mohamed A., Ene, Antoaneta, Awad, Hamdy A., Zakaly, Hesham M. H.
Published in Molecules (Basel, Switzerland) (01.08.2022)
Published in Molecules (Basel, Switzerland) (01.08.2022)
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Development of an efficient dispersive liquid-liquid microextraction approach combined with spectrophotometry for determination of antiviral drug, valacyclovir HCl in pharmaceutical formulations
Al-Bagawi, Amal H, Alenezi, Samya Sh, Sheikh, Ragaa El, Fattah, Ghada Abdel, Gouda, Ayman A
Published in Bulletin of the Chemical Society of Ethiopia (01.09.2023)
Published in Bulletin of the Chemical Society of Ethiopia (01.09.2023)
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Ultrasound-assisted dispersive liquid-liquid microextraction approach for preconcentration of acyclovir as antiviral drug in dosage forms prior to spectrophotometric determination
Al-Bagawi, Amal H, Sheikh, Ragaa El, Salem, Osama M.A, Fattah, Ghada M. Abdel, Garoub, Mohannad M, Gouda, Ayman A
Published in Bulletin of the Chemical Society of Ethiopia (01.12.2023)
Published in Bulletin of the Chemical Society of Ethiopia (01.12.2023)
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Journal Article
Efficient Recovery of Rare Earth Elements and Zinc from Spent Ni–Metal Hydride Batteries: Statistical Studies
Weshahy, Ahmed R., Gouda, Ayman A., Atia, Bahig M., Sakr, Ahmed K., Al-Otaibi, Jamelah S., Almuqrin, Aljawhara, Hanfi, Mohamed Y., Sayyed, M. I., El Sheikh, Ragaa, Radwan, Hend A., Hassen, Fatma S., Gado, Mohamed A.
Published in Nanomaterials (Basel, Switzerland) (05.07.2022)
Published in Nanomaterials (Basel, Switzerland) (05.07.2022)
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Highly Efficient Gold Nano-Flower Optical Biosensor Doped in a Sol–Gel/PEG Matrix for the Determination of a Calcitonin Biomarker in Different Serum Samples
Omer, Walaa E, El-Kemary, Maged A, Elsaady, Mostafa M, Abou-Omar, Mona N, Youssef, Ahmed O, Sayqal, Ali A, Gouda, Ayman A, Attia, Mohamed S
Published in ACS omega (24.03.2020)
Published in ACS omega (24.03.2020)
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A New Partially Phosphorylated Polyvinyl Phosphate-PPVP Composite: Synthesis and Its Potentiality for Zr (IV) Extraction from an Acidic Medium
Ene, Antoaneta, Zakaly, Hesham M. H., Salem, Amany R., Gouda, Ayman A., Althumayri, Khalid, Alshammari, Khaled F., Awad, Hamdi A., Issa, Shams A. M., Alluhaybi, Ahmad A., Zaki, Salah A., Ibrahim, Hala A., Gado, Mohamed A., El-Sheikh, Enass M., Atia, Bahig M.
Published in Separations (01.11.2022)
Published in Separations (01.11.2022)
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Journal Article
Highly Selective Optical Sensor Eu (TTA) 3 Phen Embedded in Poly Methylmethacrylate for Assessment of Total Prostate Specific Antigen Tumor Marker in Male Serum Suffering Prostate Diseases
Garoub, Mohannad, Hefny, A H, Omer, W E, Elsaady, Mostafa M, Abo-Aly, Mohamed M, Sayqal, Ali A, Alharbi, Ahmed, Hameed, Ahmed, Alessa, Hussain, Youssef, A O, Mohamed, Ekram H, Gouda, Ayman A, Sheikh, R El, Abou-Omar, M N, El-Kemary, Maged A, Attia, M S
Published in Frontiers in chemistry (19.11.2020)
Published in Frontiers in chemistry (19.11.2020)
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Journal Article
Spectrophotometric Determination of Gemifloxacin Mesylate, Moxifloxacin Hydrochloride, and Enrofloxacin in Pharmaceutical Formulations Using Acid Dyes
Yousef, Amira G., El-Sheikh, Ragaa, Amin, Alaa S., Jawdah, Ayman A.
Published in Journal of analytical methods in chemistry (01.01.2014)
Published in Journal of analytical methods in chemistry (01.01.2014)
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Journal Article
Solid-phase extraction using multiwalled carbon nanotubes and quinalizarin for preconcentration and determination of trace amounts of some heavy metals in food, water and environmental samples
Gouda, Ayman A.
Published in International journal of environmental analytical chemistry (26.09.2014)
Published in International journal of environmental analytical chemistry (26.09.2014)
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Journal Article
Spectrophotometric determination of hyoscine butylbromide and famciclovir in pure form and in pharmaceutical formulations
Gouda, Ayman A., Shafey, Zeineb El, Hossny, Nagda, El-Azzazy, Rham
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (01.09.2008)
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (01.09.2008)
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