Abstract
The present paper deals with the evaluation of nimesulide, 2-phenoxy-4-nitroaniline, the main hydrolytic degradation product of nimesulide, of methylparaben and propylparaben, and eventually of 4-hydroxybenzoic acid by HPLC with UV detection at 254 nm in syrup as a pharmaceutical formulation. HPLC analysis was employed on the reversed phase C18 with methanol and 0.01 M dibasic ammonium phosphate (ρ r = 60: 40, pH 4.0). Validation was performed using standards and a pharmaceutical preparation containing the compounds described above.
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© 2009 Institute of Chemistry, Slovak Academy of Sciences
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Artikel in diesem Heft
- A proposal of reference values for relative uncertainty increase in spectrophotometric analysis of pharmaceutical formulations
- Spectrophotometric quantification of fluoxetine hydrochloride: Application to quality control and quality assurance processes
- A simple turbidimetric flow injection system for saccharin determination in sweetener products
- Determination of metoprolol tartrate by capillary isotachophoresis
- Model predictive control of a CSTR: A hybrid modeling approach
- Application of extended NRTL equation for ternary liquid-liquid and vapor-liquid-liquid equilibria description
- Synthesis, DNA binding, and antimicrobial studies of novel metal complexes containing a pyrazolone derivative Schiff base
- Synthesis, spectral and electrochemical study of coordination molecules Cu4OX6L4: 4-cyanopyridine Cu4OBrnCl(6−n)(4-CNpy)4 complexes
- Synthesis, spectral and electrochemical study of coordination molecules Cu4OX6L4: 3-cyanopyridine Cu4OBrnCl(6−n)(3-CNpy)4 complexes
- Deposition and release of chlorhexidine from non-ionic and anionic polymer matrices
- Synthesis of new antimicrobial 4-aminosubstituted 3-nitrocoumarins
- Spectroscopic characterization of halogen- and cyano-substituted pyridinevinylenes synthesized without catalyst or solvent
- Chemical composition and antimicrobial activity of Erodium species: E. ciconium L., E. cicutarium L., and E. absinthoides Willd. (Geraniaceae)
- Photo-Fenton and photo-Fenton-like processes for the degradation of methyl orange in aqueous medium: Influence of oxidation states of iron
- Voltammetry of resazurin at a mercury electrode
- Effect of dielectric medium on angiotensin converting enzyme inhibitors binding to Zn2+
- HPLC analysis of a syrup containing nimesulide and its hydrolytic degradation product