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Ayman A. Gouda

Zagazig University
Umm al-Qura University

97

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797

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Simultaneous preconcentration and determination of zirconium in environmental samples using ultrasound-assisted ionic liquid based dispersive liquid-liquid microextraction combined with spectrophotometry

2021 International Journal of Environmental Analytical Chemistry
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Utilization of N-bromosuccinimide for the sensitive spectrophotometric determination of pipazethate HCl as antitussive drug in pure and dosage forms.

2021 Annales pharmaceutiques françaises
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An Eco-Friendly Ultrasound-Assisted Emulsification Dispersive Liquid–Liquid Microextraction of Nickel in Environmental Samples Coupled with Spectrophotometry

2021 The Egyptian Journal of Chemistry
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Ultrasound-assisted dispersive microsolid-phase extraction approach for preconcentration of trace cobalt and nickel and sensitive determination in water, food and tobacco samples by flame atomic absorption spectrometry

2021 International Journal of Environmental Analytical Chemistry
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HYDROCHEMICAL CHARACTERISTICS AND WATER QUALITY ASSESSMENT IN ABU-ZAABAL AREA, EASTERN NILE DELTA, EGYPT

2021 International Journal of Applied Pharmaceutics
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Development of green vortex-assisted supramolecular solvent-based liquid–liquid microextraction for preconcentration of mercury in environmental and biological samples prior to spectrophotometric determination

2020 Microchemical Journal
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Sensitive spectrophotometric determination of vardenafil HCl in pure and dosage forms.

2020 Annales pharmaceutiques françaises
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Preconcentration and spectrophotometric determination of mercury in water, food and hair samples through ionic-liquid induced micelle-mediated extraction

2020
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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

2020
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GREEN VORTEX-ASSISTED IONIC LIQUID-BASED DISPERSIVE LIQUID-LIQUID MICROEXTRACTION FOR ENRICHMENT AND DETERMINATION OF CADMIUM AND LEAD IN WATER, VEGETABLES AND TOBACCO SAMPLES

2020 International Journal of Applied Pharmaceutics
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