EKB Journal Management System
Author = Ayman A Gouda
Number of Articles: 10
1

Surface active ionic liquid‑assisted cloud point extraction method for preconcentration of nickel in environmental samples before its FAAS determination

Articles in Press, Accepted Manuscript , Available Online from 13 July 2020
Ayman A Gouda; Ragaa elsheikh; Eman M Hafez; Ibrahim S. Ali; Salih S Idris; Osama M. Salem
2

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

Articles in Press, Accepted Manuscript , Available Online from 13 July 2020
Ayman A Gouda; Ragaa elsheikh; Wafaa Hassan; Sara H Ibrahim; Amira Youssef
3

Validated Spectrophotometric Methods Based on Charge Transfer Complexation Reactions for the Quantification of Antimalarial Drug: Chloroquine Phosphate in Pure and Dosage Forms

Volume 2024, Issue 1, April 2024, Page 182-194
Ayman A Gouda; Ragaa elsheikh; Sara Gaber; Moataz S. Mahmoud; Ahmed F Abdel Allem; Ahmed El Sayed; Ahmed Ghazy
4

Utilization of charge transfer complexation reaction for the spectrophotometric determination of acyclovir as antiviral drug in pharmaceutical formulations

Volume 2023, Issue 4, January 2024, Page 55-65
Ayman A Gouda; Ragaa elsheikh; Moataz S. Mahmoud; Ghada M. Abdel Fattah; Alyaa S. Ibrahim; Ahmed F Abdel Allem; Nessma M. Jumaa; Ahmed El Sayed
5

Surfactant assisted spectrophotometric determination of copper(II), and mercury(II) in real samples using 2- amino-4-((4- nitrophenyl)diazenyl)pyridine-3-ol

Volume 2023, Issue 3, October 2023, Page 11-26
Ahmed H. Moustafa; Hassan A El-Sayed; Alaa S Amin; Asmaa El-Haggar; Ayman A Gouda
6

Determination of glycerin in pharmaceutical formulations by liquid chromatography

Volume 2023, Issue 1, March 2023, Page 153-163
Ayman A Gouda; Ragaa El Sheikh; Soad S Abdel Hay; Heba El Sayed; Mohamedd Ali
7

Utilization of ion-pair complexation reaction for the spectrophotometric determination of milnacipran HCl as anti-depression drug in pharmaceutical formulations

Volume 2022, Issue 4, January 2023, Page 88-98
Ayman A Gouda; Ragaa elsheikh; Eman Fawzy; Basma Mohamed
8

Ultrasound-assisted ionic liquid-based dispersive liquid-liquid microextraction procedure for preconcentration of cobalt and nickel in environmental and biological samples prior to FAAS determination

Volume 2022, Issue 2, July 2022, Page 105-120
Ragaa elsheikh; Heba El Sayed; Sherehan Abo Al Ezz; Walaa Gamil; Mohamed Ali; Ayman A Gouda; Shyma M Fawzi
9

Assessment of Organochlorine pesticides and heavy metals in groundwater in Belbis region, El-Sharqia, Egypt

Volume 2022, Issue 1, April 2022, Page 64-70
Ayman A Gouda; Ragaa elsheikh; Mohammed Shaltout; Khairy A. Hamed
10

An environment-Friendly Cloud Point Extraction Method for preconcentration and determination of Lead and Cadmium in Water Samples

Volume 2016, Issue 1, 2020, Page 1-10
Ayman A Gouda; Ragaa elsheikh; Kamal El Nabawy; Mohammed Shaltout; Ragaa El Sheikh