Combination of First Derivative Spectrophotometry and H-Point Standard Addition Method for Simultaneous Determination of Guaifenesin and Theophylline in Cough Syrup
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چکیده
منابع مشابه
Simultaneous Quantitation of Theophylline and Guaifenesin in Syrup by HPLC, Derivative and Derivative Ratio Spectrophotometry for Quality Control Purposes
The aim of the present work was to develop a simple and rapid method for determination of theophylline (THP) and guaifenesin (GU) in syrup without involving any preparation operations like separation or masking. A HPLC and two spectrophotometric methods based on the derivation of the main spectra are described for the determination of THP and GU in combined pharmaceutical syrup form. The first ...
متن کاملsimultaneous determination of lovastatin and niacin in tablet by first and third derivative spectrophotometry and h-point standard addition methods
most cardiovascular diseases need to be treated by more than a simple drug and the use of combination products diminishes noncompliance. advicor ® as a combination product of a vitamin and a fat lowering agent has no monograph in official pharmacopeias for its quality control purposes. in this study, first and third derivative signals for na and lv quantitation at the two pairs of wavelengths, ...
متن کاملSimultaneous Quantitation of Theophylline and Guaifenesin in Syrup by HPLC, Derivative and Derivative Ratio Spectrophotometry for Quality Control Purposes
The aim of the present work was to develop a simple and rapid method for determination of theophylline (THP) and guaifenesin (GU) in syrup without involving any preparation operations like separation or masking. A HPLC and two spectrophotometric methods based on the derivation of the main spectra are described for the determination of THP and GU in combined pharmaceutical syrup form. The first ...
متن کاملSimultaneous determination of lovastatin and niacin in tablet by first and third derivative spectrophotometry and H-point standard addition methods
Most cardiovascular diseases need to be treated by more than a simple drug and the use of combination products diminishes noncompliance. Advicor(®) as a combination product of a vitamin and a fat lowering agent has no monograph in official pharmacopeias for its quality control purposes. In this study, first and third derivative signals for NA and LV quantitation at the two pairs of wavelengths,...
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H-Point Standard Addition Method (HPSAM) was applied for the simultaneous determination of V(V) and Fe(III). The method is based on the complex formation of V(V) and Fe(III) with chromazurol S (CAS) in acidic media and in the presence of cetyltrimethylammonium bromide (CTAB) as a micellizing agent. Acidic media and the presence of a micellar system improve selectivity and sensitivity. Fe (I...
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ژورنال
عنوان ژورنال: E-Journal of Chemistry
سال: 2011
ISSN: 0973-4945,2090-9810
DOI: 10.1155/2011/424708