Works matching AU Amin, Alaa S

Results: 33

Construction of an optical sensor for molybdenum determination based on a new ionophore immobilized on a polymer membrane.

Published in:

Journal of King Saud University - Science, 2023, v. 35, n. 4, p. N.PAG, doi. 10.1016/j.jksus.2023.102592

By:

Amin, Alaa S.;
El-Bahy, Salah M.;
Hassan, Abeer M.E.

Publication type:

Article

Spectrophotometric Determination of Gemifloxacin Mesylate, Moxifloxacin Hydrochloride, and Enrofloxacin in Pharmaceutical Formulations Using Acid Dyes.

Published in:

Journal of Analytical Methods in Chemistry, 2014, p. 1, doi. 10.1155/2014/286379

By:

Gouda, Ayman A.;
Amin, Alaa S.;
El-Sheikh, Ragaa;
Yousef, Amira G.

Publication type:

Article

Eco-friendly optical sensor for precise detection of gold ions in diverse matrices through the integration of β-2-hydroxybenzyl-3-methoxy-2-hydroxyazastyrene in a PVC membrane.

Published in:

Analytical & Bioanalytical Chemistry, 2024, v. 416, n. 16, p. 3835, doi. 10.1007/s00216-024-05324-7

By:

Hemdan, Mohamed;
Ali, Mohamed A.;
Amin, Alaa S.

Publication type:

Article

Ultrasensitive and highly selective detection of nickel ion by two novel optical sensors.

Published in:

Analytical & Bioanalytical Chemistry, 2023, v. 415, n. 23, p. 5695, doi. 10.1007/s00216-023-04845-x

By:

Alshehri, Reem F.;
Amin, Alaa S.;
Darwish, Eman R.

Publication type:

Article

Utility of a novel optical sensor design for ultra-trace detection of chromium colorimetrically in real environmental samples.

Published in:

International Journal of Environmental Analytical Chemistry, 2023, v. 103, n. 16, p. 4031, doi. 10.1080/03067319.2021.1921759

By:

El-Feky, Hesham H.;
El-Bahy, Salah M.;
Hassan, Abeer M.E.;
Amin, Alaa S.

Publication type:

Article

Utility of solid-phase extraction coupled with spectrophotometry for a novel green nano determination of copper(II) using 4-((furan-2-ylmethylene) amino)-5-methyl-4H-1,2,4-triazole-3-thiol.

Published in:

International Journal of Environmental Analytical Chemistry, 2023, v. 103, n. 7, p. 1550, doi. 10.1080/03067319.2021.1877281

By:

Amin, Alaa S.;
Nassar, Mostafa Y.;
Gomaa, Aya

Publication type:

Article

Design of a novel optical sensor for determination of trace amounts of tin in food and in environmental samples.

Published in:

International Journal of Environmental Analytical Chemistry, 2022, v. 102, n. 18, p. 7313, doi. 10.1080/03067319.2020.1830988

By:

Gouda, Ayman A.;
Amin, Alaa S.

Publication type:

Article

Modified Spectrophotometric Method for the Determination of Some Important Antibiotics Through Charge - Transfere Complexation Reaction with Chloranil.

Published in:

Spectroscopy Letters, 1996, v. 29, n. 6, p. 1003, doi. 10.1080/00387019608007267

By:

Amin, Alaa S.

Publication type:

Article

Optimized and validated spectrophotometric determination of two antifungal drugs in pharmaceutical formulations using an ion-pair complexation reaction.

Published in:

Journal of Taibah University for Science, 2016, v. 10, n. 1, p. 26, doi. 10.1016/j.jtusci.2015.02.018

By:

Gouda, Ayman A.;
Sheikh, Ragaa El;
Amin, Alaa S.;
Ibrahim, Sara H.

Publication type:

Article

Spectrophotometric determination of bismuth after solid-phase extraction using amberlite XAD-2 resin modified with 5-(2′-bromophenylazo)-6-hydroxy pyrimidine-2,4-dione.

Published in:

Journal of Taibah University for Science, 2015, v. 9, n. 4, p. 490, doi. 10.1016/j.jtusci.2015.01.003

By:

Amin, Alaa S.;
Zaafarany, Ishaq A.

Publication type:

Article

Novel approach for the determination of zirconium by solid-phase spectrophotometry.

Published in:

Journal of Taibah University for Science, 2015, v. 9, n. 2, p. 227, doi. 10.1016/j.jtusci.2014.11.003

By:

Amin, Alaa S.

Publication type:

Article

New polycrystalline solid state responsive electrodes for the determination of the selenite ion.

Published in:

Electroanalysis, 1995, v. 7, n. 6, p. 587, doi. 10.1002/elan.1140070616

By:

Zareh, Mohsen M.;
Amin, Alaa S.;
Abdel-Aziz, Manar

Publication type:

Article

Simple spectrophotometric methods for determination of fluoxetine and clomipramine hydrochlorides in dosage forms and in some post-mortem biological fluids samples.

Published in:

Egyptian Journal of Forensic Sciences, 2016, v. 6, n. 4, p. 370, doi. 10.1016/j.ejfs.2016.05.007

By:

Ali, Emam A.;
Adawy, Ahmed M.;
El-Shahat, Mohamed F.;
Amin, Alaa S.

Publication type:

Article

Utility of cloud-point preconcentration and spectrophotometry for determination of trace amounts of palladium(II) and their analytical applications.

Published in:

Arabian Journal of Chemistry, 2016, v. 9, p. S326, doi. 10.1016/j.arabjc.2011.04.003

By:

Amin, Alaa S.

Publication type:

Article

Study on the solid phase extraction and spectrophotometric determination of cobalt with 5-(2-benzothiazolylazo)-8-hydroxyquinolene.

Published in:

Arabian Journal of Chemistry, 2014, v. 7, n. 5, p. 715, doi. 10.1016/j.arabjc.2010.12.008

By:

Amin, Alaa S.

Publication type:

Article

Spectrophotometric and spectrofluorometric methods for the determination of non-steroidal anti-inflammatory drugs: A review

Published in:

Arabian Journal of Chemistry, 2013, v. 6, n. 2, p. 145, doi. 10.1016/j.arabjc.2010.12.006

By:

Gouda, Ayman A.;
Kotb El-Sayed, Mohamed I.;
Amin, Alaa S.;
El Sheikh, Ragaa

Publication type:

Article

Spectrophotometric microdetermination of anti-Parkinsonian and antiviral drug amantadine HCl in pure and in dosage forms

Published in:

Arabian Journal of Chemistry, 2011, v. 4, n. 3, p. 287, doi. 10.1016/j.arabjc.2010.06.048

By:

Omara, Hany A.;
Amin, Alaa S.

Publication type:

Article

Ion-pairing and reversed phase liquid chromatography for the determination of three different quinolones: Enrofloxacin, lomefloxacin and ofloxacin

Published in:

Arabian Journal of Chemistry, 2011, v. 4, n. 3, p. 249, doi. 10.1016/j.arabjc.2010.06.031

By:

Amin, Alaa S.;
Dessouki, Hassan A.;
Agwa, Ibrahim A.

Publication type:

Article

Copper(II)–neocuproine reagent for spectrophotometric determination of captopril in pure form and pharmaceutical formulations

Published in:

Arabian Journal of Chemistry, 2010, v. 3, n. 3, p. 159, doi. 10.1016/j.arabjc.2010.04.004

By:

Gouda, Ayman A.;
Amin, Alaa S.

Publication type:

Article

Utility of oxidation–reduction reaction for the spectrophotometric determination of amlodipine besylate

Published in:

Arabian Journal of Chemistry, 2009, v. 2, n. 1, p. 59, doi. 10.1016/j.arabjc.2009.07.002

By:

Shama, Sayed A.;
Amin, Alaa S.;
Mabrouk, El Sayed M.;
Omara, Hany A.

Publication type:

Article

Fast and Reliable Synthesis of Melanin Nanoparticles with Fine-Tuned Metal Adsorption Capacities for Studying Heavy Metal Ions Uptake.

Published in:

Nanotechnology, Science & Applications, 2021, v. 14, p. 101, doi. 10.2147/NSA.S296722

By:

Darwish, Eman R;
Kalil, Haitham;
Alqahtani, Wafa;
Moalla, Sayed MN;
Hosny, Nasser M;
Amin, Alaa S;
Martin, Heidi B;
Bayachou, Mekki

Publication type:

Article

Speciation of Selenium in Environmental Samples by Solid-Phase Spectrophotometry Using 2,3-Dichloro-6- (2,7-dihydroxy-naphthylazo)quinoxaline.

Published in:

Journal of AOAC International, 2014, v. 97, n. 2, p. 586, doi. 10.5740/jaoacint.11-002

By:

AMIN, ALAA S.

Publication type:

Article

Spectrophotometric Determination of Pipazethate Hydrochloride in Pure Form and in Pharmaceutical Formulations.

Published in:

Journal of AOAC International, 2007, v. 90, n. 3, p. 686

By:

EL-SHIEKIH, RAGAA;
AMIN, ALAA S.;
ZARRAN, FATEN;
GOUDA, AYMAN A.

Publication type:

Article

Determination of Molybdenum in Human Urine by Spectrophotometric Method using Thiazolylazo Compounds as Chromogenic Reagents.

Published in:

Analytical Letters, 1999, v. 32, n. 8, p. 1575, doi. 10.1080/00032719908542917

By:

Amin, Alaa S.

Publication type:

Article

Quantitative Determination of Some Pharmaceutical Veterinary Formulations Using Bromocresol Purple and Bromocresol Green.

Published in:

Analytical Letters, 1997, v. 30, n. 14, p. 2503, doi. 10.1080/00032719708001761

By:

Amin, Alaa S.

Publication type:

Article

Colorimetric Microdetermination of some Corticosteroid Drugs Using Indophenol as Chromophoric Reagent.

Published in:

Analytical Letters, 1996, v. 29, n. 9, p. 1527, doi. 10.1080/00032719608001502

By:

Amin, Alaa S.

Publication type:

Article

Optimization and validation of spectrophotometric methods for determination of finasteride in dosage and biological forms.

Published in:

Pharmaceutical Methods, 2012, v. 3, n. 1, p. 48, doi. 10.4103/2229-4708.97726

By:

Amin, Alaa S.;
Kassem, Mohammed A.

Publication type:

Article

UTILISATION OF CHARGE TRANSFER COMPLEXATION REACTIONS FOR THE QUANTIFICATION OF ANTIFUNGAL DRUG: VORICONAZOL IN PURE AND DOSAGE FORMS.

Published in:

Bulletin of the Chemical Society of Ethiopia, 2025, v. 39, n. 2, p. 189, doi. 10.4314/bcse.v39i2.1

By:

El-Korashy, Sabry A.;
Amin, Alaa S.;
Gouda, Ayman A.;
Alshuwaili, Mustafa Kh.;
Ibrahim, Hoyeda E.

Publication type:

Article

SPECTROPHOTOMETRY METHODS BASED ON CHARGE TRANSFER COMPLEXATION REACTION FOR THE DETERMINATION OF SOME ANTIFUNGAL DRUGS IN PURE AND DOSAGE FORMS.

Published in:

Bulletin of the Chemical Society of Ethiopia, 2016, v. 30, n. 3, p. 333, doi. 10.4314/bcse.v30i3.2

By:

Gouda, Ayman A.;
El Sheikh, Ragaa;
Amin, Alaa S.;
Ibrahim, Sara H.

Publication type:

Article

SPECTROPHOTOMETRIC DETERMINATION OF PIZOTEFIN MALEATE IN PURE FORM AND TABLETS USING π-ACCEPTORS.

Published in:

Bulletin of the Chemical Society of Ethiopia, 2015, v. 29, n. 2, p. 187, doi. 10.4314/bcse.v29i2.3

By:

Amin, Alaa S.;
Gouda, Ayman A.;
Sheikh, Ragaa El;
Youssef, Eman H.

Publication type:

Article

SENSITIVE SPECTROPHOTOMETRIC METHODS FOR DETERMINATION OF SOME ORGANOPHOSPHORUS PESTICIDES IN VEGETABLE SAMPLES.

Published in:

Chemical Industry & Chemical Engineering Quarterly, 2010, v. 16, n. 1, p. 11, doi. 10.2298/CICEQ090417003G

By:

Gouda, Ayman A.;
Amin, Alaa S.;
El Sheikh, Ragaa;
Akl, Magda A.

Publication type:

Article

Spectrophotometric Determination of Zinc in Pharmaceutical Samples with Some Salicylic Azo Compounds.

Published in:

Analytical Letters, 1994, v. 27, n. 1, p. 95, doi. 10.1080/00032719408006348

By:

Amin, Alaa S.

Publication type:

Article

Innovations in Biosensor Technologies for Healthcare Diagnostics and Therapeutic Drug Monitoring: Applications, Recent Progress, and Future Research Challenges.

Published in:

Sensors (14248220), 2024, v. 24, n. 16, p. 5143, doi. 10.3390/s24165143

By:

Hemdan, Mohamed;
Ali, Mohamed A.;
Doghish, Ahmed S.;
Mageed, Sherif S. Abdel;
Elazab, Ibrahim M.;
Khalil, Magdy M.;
Mabrouk, Mostafa;
Das, Diganta B.;
Amin, Alaa S.

Publication type:

Article