G. Hadad

发表

Determination of two ternary mixtures containing phenobarbitone by second derivative of the ratio spectrum-zero-crossing and HPLC methods.

S. Emara, A. El-Gindy, G. Hadad, 2003, Farmaco.

Stability-Indicating High-Performance Thin-Layer Chromatographic Determination of Ondansetron in Pure Form and Pharmaceutical Formulations

R. A. Salam, G. Hadad, Roshdy E. Saraya, 2018, JPC – Journal of Planar Chromatography – Modern TLC.

Three-dimensional desirability spaces for quality-by-design-based HPLC development.

G. Hadad, Hatem I. Mokhtar, Randa A. Abdel-Salam, 2015, Journal of chromatographic science.

Simultaneous determination of selected veterinary antibiotics in Nile tilapia (Orechromis niloticus) and water samples by HPLC/UV and LC-MS/MS

R. A. Salam, I. Eissa, G. Hadad, 2017 .

Development of an optimized HPLC method for the simultaneous determination of six compounds containing β-lactam ring in human plasma and urine using experimental design methodology

R. A. Salam, E. Hameed, G. Hadad, 2016 .

Validated stability-indicating HPLC method for the determination of dimethyl-4,4'-dimethoxy-5,6,5',6'-dimethylene dioxybiphenyl-2,2'-dicarboxylate (DDB) and its degradation products.

G. Hadad, Ghada M. Hadad, 2008, Journal of pharmaceutical and biomedical analysis.

Tolerance intervals modeling for design space of a salt assisted liquid-liquid microextraction of trimethoprim and six common sulfonamide antibiotics in environmental water samples.

G. Hadad, Hatem I. Mokhtar, Randa A. Abdel-Salam, 2019, Journal of chromatography. A.

Simultaneous Determination of 11 Sulfonamides by HPLC–UV and Application for Fast Screening of Their Aerobic Elimination and Biodegradation in a Simple Test

K. Kümmerer, G. Hadad, Randa A. Abdel-Salam, 2013 .

Photolysis of sulfamethoxypyridazine in various aqueous media: aerobic biodegradation and identification of photoproducts by LC-UV-MS/MS.

K. Kümmerer, G. Hadad, Randa A. Abdel-Salam, 2013, Journal of hazardous materials.

Determination of certain drugs in binary mixtures formulations by second derivative ratio spectrophotometry and LC.

S. Emara, A. El-Gindy, G. Hadad, 2004, Farmaco.

Simultaneous Determination of Clarithromycin, Tinidazole and Omeprazole in Helicure Tablets Using Reflectance Near-Infrared Spectroscopy with the Aid of Chemometry

G. Hadad, Abdel Salam Ra, El-Beshlawy Mm, 2015 .

Development and validation of a stability-indicating RP-HPLC method for the determination of paracetamol with dantrolene or/and cetirizine and pseudoephedrine in two pharmaceutical dosage forms.

S. Emara, G. Hadad, Waleed M. M. Mahmoud, 2009, Talanta.

Optimization and Validation of an LC Method for the Determination of Cefdinir in Dosage Form and Human Urine

S. Emara, G. Hadad, Waleed M. M. Mahmoud, 2009 .

HPLC and chemometrics-assisted UV-spectroscopy methods for the simultaneous determination of ambroxol and doxycycline in capsule.

A. El-Gindy, G. Hadad, Waleed M. M. Mahmoud, 2008, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Design Space Calculation by In Silico Robustness Simulation with Modeling Error Propagation in QbD Framework of RP-HPLC Method Development

G. Hadad, Hatem I. Mokhtar, Randa A. Abdel-Salam, 2015, Chromatographia.

A review article on Ciprofloxacin determination with various analytical techniques.

R. A. Salam, Ahmed Ali, S. Emara, 2021 .

Quantification and targeted detection of ciprofloxacin in dosage form and human urine by direct injection nano-electrospray ionization multi-stage mass spectrometry

R. A. Salam, Yoshihiro Shimizu, T. Masujima, 2020 .

RECORDS OF PHARMACEUTICAL AND BIOMEDICAL SCIENCES Recent advances in ambient electrospray ionization technologies

S. Amer, S. Emara, G. Hadad, 2020 .

Resolution and quantification challenge of modern chemometric models in the determination of anti-migraine tablets containing ergotamine, caffeine, acetaminophen, and metoclopramide

R. A. Salam, G. Hadad, M. M. Elkhoudary, 2017 .

SIMULTANEOUS DETERMINATION OF TWO MULTICOMPONENT MIXTURES CONTAINING PHENOBARBITONE AND EPHEDRINE HYDROCHLORIDE USING HPLC AND CHEMOMETRIC ASSISTED SPECTROPHOTOMETRIC METHODS

G. Hadad, Randa A Abdel Salam, Eman A. Abdel Hameed, 2012 .

New Validated Methods for the Simultaneous Determination of Two Multicomponent Mixtures Containing Guaiphenesin in Syrup by HPLC and Chemometrics‐Assisted UV‐Spectroscopy

M. Mesbah, S. Emara, A. El-Gindy, 2006 .

Development and validation of a simple HPTLC method for the determination of new hepatitis C subtype 4 antiviral agents in their tablet dosage form

A. El-Gindy, G. Hadad, M. M. Elkhoudary, 2020, JPC – Journal of Planar Chromatography – Modern TLC.

RECORDS OF PHARMACEUTICAL AND BIOMEDICAL SCIENCES Role of superparamagnetic nanoparticles in magnetic dispersive micro- solid phase extraction

G. Hadad, Hatem I. Mokhtar, Randa A. Abdel-Salam, 2020 .

Utility of copper(II) oxide as a packed reactor in flow injection assembly for rapid analysis of some angiotensin converting enzyme inhibitors

S. Emara, A. El-Gindy, G. Hadad, 2003 .

Analysis of Terpenes in Cannabis sativa L. Using GC/MS: Method Development, Validation, and Application

Safwat Ahmed, I. Khan, A. Ibrahim, 2019, Planta Medica.

Stability study of thymoquinone, carvacrol and thymol using HPLC-UV and LC-ESI-MS

M. Mesbah, Thikryat Neamatallah, B. Eid, 2020, Acta pharmaceutica.

Optimized and validated flow-injection spectrophotometric analysis of topiramate, piracetam and levetiracetam in pharmaceutical formulations

S. Emara, G. Hadad, Randa A. Abdel-Salam, 2011, Acta pharmaceutica.

Dilute-and-shoot-based direct nano-electrospray ionization tandem mass spectrometry as screening methodology for multivitamins in dietary supplement and human urine

T. Masujima, S. Amer, S. Emara, 2020, Journal of advanced research.

Spectrophotometric and liquid chromatographic determination of fenofibrate and vinpocetine and their hydrolysis products.

M. Mesbah, S. Emara, A. El-Gindy, 2005, Farmaco.

HPLC and UPLC-MS/MS methods for analyzing TRAMADOL in 70 medicinal illegal products: Application to counterfeit study

R. A. Salam, D. Abo-Elmatty, G. Hadad, 2021, Microchemical Journal.

Seasonal Variations in Antioxidant Components of Olea europaea in Leaves of Different Cultivars, Seasons, and Oil Products in Sinai

A. Ibrahim, G. Hadad, Amany K Ibrahim, 2020, Food Analytical Methods.

Analysis And Pollution Assessment of Some Trace Heavy Metals in Freshwater, Drinking Water, Fish, and Sediments Samples in Suez Canal Region, Egypt by Flame Atomic Absorption Spectrometer

Diaa T. A. Youssef, G. Hadad, Randa A Abdel Salam, 2019, Records of Pharmaceutical and Biomedical Sciences.

Validated, Stability-Indicating LC Method for Analysis of Pipenzolate Bromide and Its Hydrolysis Products

G. Hadad, 2008 .

A highly sensitive spectrofluorimetric method for the determination of bilastine in its pharmaceutical preparations and biological fluids.

G. Hadad, F. Belal, M. Salim, 2022, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

High performance liquid chromatographic determination of etofibrate and its hydrolysis products.

A. El-Gindy, G. Hadad, Waleed M. M. Mahmoud, 2007, Journal of pharmaceutical and biomedical analysis.

Application of LC and HPTLC-densitometry for the simultaneous determination of two multicomponent mixtures containing pyridoxine hydrochloride and cyanocobalamine

R. A. Salam, G. Hadad, E. A. Hameed, 2013 .

HPLC-UV and UPLC-MS/MS methods for the simultaneous analysis of sildenafil, vardenafil, and tadalafil and their counterfeits dapoxetine, paroxetine, citalopram, tramadol, and yohimbine in aphrodisiac products

D. Abo-Elmatty, G. Hadad, Randa A Abdel Salam, 2021, RSC advances.

LC-UV and LC-MS/MS detection and quantification of steroid hormones in edible food samples and water using solid phase extraction

G. Hadad, Randa A. Abdel-Salam, Lubna Kormod, 2021 .

A nanocomposite of silica coated magnetite nanoparticles and aniline-anthranilic acid co-polymeric nanorods with improved stability and selectivity for fluoroquinolones dispersive micro solid phase extraction.

G. Hadad, Hatem I. Mokhtar, Randa A. Abdel-Salam, 2022, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

GC-MS/MS Quantification of EGFR Inhibitors, β-Sitosterol, Betulinic Acid, (+) Eriodictyol, (+) Epipinoresinol, and Secoisolariciresinol, in Crude Extract and Ethyl Acetate Fraction of Thonningia sanguinea

Mohamed S. Nafie, Sameh S. Elhady, A. Alahdal, 2022, Molecules.

HPLC determination of Metronidazole in pure form, pharmaceutical dosage form and spiked urine.

G. Hadad, Randa A. Abdel-Salam, khaled karam afify, 2018, Records of Pharmaceutical and Biomedical Sciences.

Direct nano-electrospray ionization tandem mass spectrometry for the quantification and identification of metronidazole in its dosage form and human urine

T. Masujima, S. Amer, S. Emara, 2019, Royal Society Open Science.

Application of a Small Protein-Coated Column to Trap, Extract and Enrich Carbamazepine Directly from Human Serum for Direct Chromatographic Analysis

Ahmed Ali, S. Emara, G. Hadad, 2023, Separations.

Direct infusion nano-electrospray ionization mass spectrometry for therapeutic drug monitoring of ciprofloxacin and its metabolites in human saliva.

R. A. Salam, Yoshihiro Shimizu, T. Masujima, 2020, Journal of pharmaceutical and biomedical analysis.

Analysis of Cupressuflavone and Amentoflavone from Cupressus sempervirens L. and its Tissue Cultured Callus using HPLC-DAD Method

Safwat Ahmed, A. Ibrahim, M. Elsohly, 2017 .

Optimization and Validation of an HPLC-UV Method for Determination of Tranexamic Acid in a Dosage Form and in Human Urine

A. El-Gindy, G. Hadad, Waleed M. M. Mahmoud, 2007 .

Stability-Indicating Methods for Determination of Flubendazole and Its Degradants.

G. Hadad, Randa A Abdel Salam, Mahmoud M. Elkhoudary, 2015, Journal of chromatographic science.

Chemometric-assisted spectrophotometric methods and high performance liquid chromatography for simultaneous determination of seven β-blockers in their pharmaceutical products: a comparative study.

G. Hadad, Randa A Abdel Salam, Eman A. Abdel Hameed, 2015, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Simultaneous HPLC determination of vildagliptin, ampicillin, sulbactam and metronidazole in pharmaceutical dosage forms and human urine

G. Hadad, Randa A Abdel Salam, Eman A. Abdel Hameed, 2020, Journal of the Iranian Chemical Society.