Diyala Journal for Pure Science
Scientific Refereed Journal Published By College of Science - University of Diyala
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Diyala Journal For Pure Sciences DJPS
ISRA Impact Factor:3.715
P- ISSN:2222-8373, E-ISSN:2518-9255
Volume 14, Issue 2 , April . 2018
A Simple and Sensitive Spectrophotometric Method for the Determination of Trace Amounts of Sulfadiazine in Pharmaceutical Drugs Sample
Israa Talib Humeidy
Year: 2018, Volume: 14, Issue: 2
Pages: 31-44 , DOI: http://dx.doi.org/10.24237/djps.1402.368A
This study includes a simple and sensitive spectrophotometric method for the estimation of trace amounts of sulfadiazine in aqueous solution utilizing oxidative coupling reaction of sulfadiazine with pyrocatechol in the existence of potassium periodate (KIO4) in acidic medium to yield a water-soluble dye which appear a maximum absorbance at 515 nm. The linearity is in the concentration range 0.2 - 20 μg/ml of SDZ, the molar absorptivity 1.2765× 104 liter. mol-1.cm-1 and the relative error ranges from 1.20 - 1.36 % depending on the concentration level of SDZ. The study was successfully applied to estimate the sulfadiazine in pharmaceutical drugs sample in the form of injections and burn cream.
Keywords: Sulfadiazine, Pyrocatechol, Spectrophotometry.