Spectrophotometric Determination of Ranitidine Hydrochloride Based on the Reaction with p-Dimethylaminobenzaldehyde
 
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Department of Post Graduate Studies and Research in Chemistry, Mangalore University, Mangalagangothri 574 199, India
CORRESPONDING AUTHOR
Badiadka Narayana   

Department of Post Graduate Studies and Research in Chemistry, Mangalore University, Mangalagangothri 574 199, India
Publish date: 2017-10-05
 
Eurasian J Anal Chem 2010;5(1):63–72
KEYWORDS
ABSTRACT
A simple and sensitive spectrophotometric method is described for the determination of ranitidine hydrochloride (RNH) in pharmaceuticals. It is based on the formation of colored condensation product with p-dimethylaminobenzaldehyde (PDAB) followed by measurement of absorbance at 503 nm. The absorbance was found to increase linearly with the concentration of the drug and formed the basis for quantification. The calibration graph was linear from 50.0 to 350.0 μg mL-1. The apparent molar absorptivity is calculated to be 0.311×104 L mol-1cm-1and the calculated Sandell’s sensitivity is 0.1132µg cm-2. The limits of detection and quantification are found to be 0.00346 and 0.0105µg mL-1,respectively.The procedure is used to determine ranitidine hydrochloride in pharmaceutical products. The associated pharmaceutical materials did not interfere.
 
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