RESEARCH PAPER
Validated Spectrofluorimetric Method for The Determination of Oxymetazoline Hydrochloride via Derivatization with 4-Chloro-7-nitrobenzo-2-oxa-1,3-diazole (NBD-Cl)
 
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Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Nasr City, Cairo, EGYPT
Online publish date: 2018-03-20
Publish date: 2018-03-20
 
Eurasian J Anal Chem 2018;13(4):em25
KEYWORDS:
ABSTRACT:
Objectives:
An accurate and precise spectrofluorimetric method was developed and validated for the determination of non-selective adrenergic drug named; oxymetazoline hydrochloride (OMZ) in its pure form and nasal drops.

Method:
Based on nucleophilic substitution reaction of target drug with 4-chloro-7-nitrobenzo-2-oxa-1,3-diazole (NBD-Cl) to form a highly fluorescent fluorophore with emission measured at 543 nm after excitation at 400 nm.

Results:
Under optimum conditions, the proposed method obeys Beer’s law in the range of (1-12 µg mL-1) and the reaction mechanism was presented.

Conclusion:
The method was validated according to ICH guidelines for accuracy, precision and was successfully applied for the determination of the drug in its pure form and nasal drops. The obtained results were statistically compared with those of the reported method and found to be in good agreement.

 
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