Hewala, Ismail : rechercher sur Z-Library

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1

GLC and HPLC Determination of Diazepam and its Degradation Products in Pharmaceutical formulations

Hewala, Ismail I.

Journal:

Analytical Letters

Année:

1992

Langue:

english

Fichier:

PDF, 679 KB

english, 1992

2

Gas—liquid chromatographic and difference spectrophotometric techniques for the determination of benzaldehyde in benzyl alcohol

Ismail I. Hewala

Journal:

Journal of Pharmaceutical and Biomedical Analysis

Année:

1994

Fichier:

PDF, 444 KB

1994

3

Non-parametric linear regression of discrete Fourier transform convoluted densitometric peak responses

Mohamed A. Korany, Ismail I. Hewala, Karim M. Abdel-Hai

Journal:

Journal of Pharmaceutical and Biomedical Analysis

Année:

2006

Langue:

english

Fichier:

PDF, 452 KB

english, 2006

4

First derivative spectrophotometric determination of granisetron hydrochloride in presence of its hydrolytic products and preservative and application to pharmaceutical preparations

Ismail I. Hewala, Mona M. Bedair, Sherif M. Shousha

Journal:

Drug Testing and Analysis

Année:

2012

Langue:

english

Fichier:

PDF, 132 KB

english, 2012

5

Development and application of a validated stability-indicating HPLC method for simultaneous determination of granisetron hydrochloride, benzyl alcohol and their main degradation products in parenteral dosage forms

Ismail Hewala, Hamed El-Fatatre, Ehab Emam, Mokhtar Mubrouk

Journal:

Année:

2010

Langue:

english

Fichier:

PDF, 1.54 MB

english, 2010

6

New concept for HPTLC peak purity assessment and identification of drugs in multi-component mixtures

Ismail I. Hewala, Mona M. Bedair, Sherif M. Shousha

Journal:

Année:

2012

Langue:

english

Fichier:

PDF, 1.13 MB

english, 2012

7

Difference spectrophotometric assay of benzaldehyde in benzyl alcohol

Ismail I. Hewala

Journal:

Année:

1993

Langue:

english

Fichier:

PDF, 405 KB

english, 1993

8

Development and application of a novel, dual-mode gradient, stability-indicating HPLC-DAD method for the simultaneous determination and purity assessment of mebeverine hydrochloride, diloxanide furoate and their corresponding major degradation products in combination with some gastrointestinal drugs in the form of oral doses

Mabrouk, Mokhtar, El-Fatatry, Hamed, Hewala, Ismail, Emam, Ehab

Journal:

Journal of Pharmaceutical and Biomedical Analysis

Année:

2013

Langue:

english

Fichier:

PDF, 1.48 MB

english, 2013

9

Stability - Indicating Hplc Assay for Paracetamol, Guaiphenesin, Sodium Benzoate and Oxomemazine in Cough Syrup.

Hewala, Ismail I.

Journal:

Analytical Letters

Année:

1994

Langue:

english

Fichier:

PDF, 603 KB

english, 1994

10

High-Performance Liquid Chromatographic and Derivative Difference Spectrophotometric Methods for the Determination of Acetaminophen and Its Degradation Product in Aged Pharmaceutical Formulations

Hewala, Ismail I.

Journal:

Analytical Letters

Année:

1994

Langue:

english

Fichier:

PDF, 600 KB

english, 1994

11

Stability-indicating HPLC–DAD methods for determination of two binary mixtures: Rabeprazole sodium–mosapride citrate and rabeprazole sodium–itopride hydrochloride

El-Fatatry, Hamed M., Mabrouk, Mokhtar M., Hewala, Ismail I., Emam, Ehab H.

Journal:

Journal of Pharmaceutical Analysis

Année:

2014

Langue:

english

Fichier:

PDF, 1.12 MB

english, 2014

12

Enantioselective HPLC-DAD method for the determination of etodolac enantiomers in tablets, human plasma and application to comparative pharmacokinetic study of both enantiomers after a single oral dose to twelve healthy volunteers

Hewala, Ismail I., Moneeb, Marwa S., Elmongy, Hatem A., Wahbi, Abdel-Aziz M.

Journal:

Année:

2014

Langue:

english

Fichier:

PDF, 1.34 MB

english, 2014

13

First Derivative Spectrophotometric and Colourimetric Determination of Non-Steroidal Antiestrogens

Hewala, Ismail I.

Journal:

Analytical Letters

Année:

1993

Langue:

english

Fichier:

PDF, 413 KB

english, 1993

14

Determination of Two Binary Vitamin Mixtures Using Difference and Derivative Spectrophotometry

Hewala, Ismail I.

Journal:

Analytical Letters

Année:

1993

Langue:

english

Fichier:

PDF, 513 KB

english, 1993

15

Development and Application of a Validated Stability-Indicating High-Performance Liquid Chromatographic Method Using Photodiode Array Detection for Simultaneous Determination of Granisetron, Methylparaben, Propylparaben, Sodium Benzoate, and Their Main Degradation Products in Oral Pharmaceutical Preparations

Hewala, Ismail, El-Fatatry, Hamed, Emam, Ehab, Mabrouk, Mokhtar

Journal:

Journal of AOAC International

Année:

2011

Langue:

english

Fichier:

PDF, 649 KB

english, 2011

16

The Use of Fourier Descriptors for the Spectrophotometric Identification of Substances: Identification of Some Benzenoid Compounds.

Korany, Ezzat A., Korany, Mohammed A., Bedair, Mona A., Hewala, Ismail I., Haggag, Reem S.

Journal:

Analytical Letters

Année:

1998

Langue:

english

Fichier:

PDF, 835 KB

english, 1998

17

Application of Multivariate Methods to the Simultaneous Fourier Transform Infrared (FT-IR) Spectrometric Determination of Stereo-Isomers; Quinine and Quinidine

Wahbi, Abdel-Aziz Mohamed, Moneeb, Marwa Saio, Hewala, Ismail Ibrahim, Bahnasy, Mahmoud Farouk

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Année:

2008

Langue:

english

Fichier:

PDF, 308 KB

english, 2008

18

A New Concept for Testing Chromatographic Peak Purity: Application to Peak Purity Determination of Main Ingredients in Tea Extracts

Moneeb, Marwa S., Hewala, Ismail I., Elmongy, Hatem A., Wahbi, Abdel-Aziz M.

Journal:

Asian Journal of Chemistry

Année:

2015

Langue:

english

Fichier:

PDF, 667 KB

english, 2015

19

Development and Application of a Validated Stability-Indicating High-Performance Liquid Chromatographic Method Using Photodiode Array Detection for Simultaneous Determination of Granisetron, Methylparaben, Propylparaben, Sodium Benzoate, and Their Main Degradation Products in Oral Pharmaceutical Preparations

Hewala, Ismail, El-Fatatry, Hamed, Emam, Ehab, Mabrouk, Mokhtar

Journal:

Journal of AOAC International

Année:

2011

Fichier:

PDF, 679 KB

2011

20

Determination of Etofibrate, Fenofibrate, and Atorvastatin in Pharmaceutical Preparations and Plasma Using Differential Pulse Polarographic and Square Wave Voltammetric Techniques

Korany, Mohamed A, Hewala, Ismail I, Abdel-Hay, Karim M

Journal:

Journal of AOAC International

Année:

2008

Fichier:

PDF, 215 KB

2008