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230588

Different Spectrophotometric Methods of Operating Ratio Spectra for Analyzing Pharmaceutical Combinations of Loratadine and Dexamethasone

Article

Last updated: 22 Jan 2023

Subjects

-

Tags

Medicinal chemistry.

Abstract

Two different ratio spectrophotometric methods are introduced for the concurrent dedication of a binary combination of Dexamethasone (DEX) and Loratadine (LOR) in laboratory prepared combinations and pharmaceutical dosage form directly. Both methods are simple and do not need advanced methods or instruments. They are also sensitive and selective and may be utilized for routine analysis of DEX and LOR in their available dosage form without earlier separation. The methods are suitable and valid also for application in research facilities that don't have liquid chromatographic instruments. Method (I) is ratio derivative spectrophotometry (RDM), Method (II) is ratio subtraction (RSM) coupled with extended ratio subtraction method (EXRSM). The mathematical clarification for both methods is explained. Calibration curves of the two methods are linear in the concentration ranges between 3.0-25.0 μg /ml and 7.5-40.0 μg /ml for DEX and LOR in 0.1N MethanolicHCl, respectively. Both methods are validated as stated by the ICH guidelines where accuracy, precision, and repeatability are found to be within acceptable limits.

DOI

10.21608/jampr.2022.132917.1028

Keywords

dexamethasone, Loratadine, Extended ratio subtraction method, Ratio subtraction method, Ratio spectra derivative spectrophotometry

Authors

First Name

Mokhtar

Last Name

Mabrouk

MiddleName

-

Affiliation

Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Tanta University, Tanta 31111, Egypt

Email

mokhtar.mabrouk@pharm.tanta.edu.eg

City

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Orcid

-

First Name

Sherin

Last Name

Hammad

MiddleName

Farouk

Affiliation

Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Tanta University, Tanta 31111, Egypt

Email

sherinhammad@pharm.tanta.edu.eg

City

-

Orcid

-

First Name

Noha

Last Name

Elzawawy

MiddleName

-

Affiliation

Bioequivalence Unit, Pharmaceutical Services Center, Faculty of Pharmacy, Tanta University, Tanta 31111, Egypt

Email

nohazawawy@gmail.com

City

Tanta

Orcid

-

Volume

3

Article Issue

1

Related Issue

33944

Issue Date

2022-04-01

Receive Date

2022-02-12

Publish Date

2022-04-01

Page Start

19

Page End

28

Online ISSN

2636-4158

Link

https://jampr.journals.ekb.eg/article_230588.html

Detail API

https://jampr.journals.ekb.eg/service?article_code=230588

Order

3

Type

Original Article

Type Code

855

Publication Type

Journal

Publication Title

Journal of Advanced Medical and Pharmaceutical Research

Publication Link

https://jampr.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023