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First-order UV-derivative spectrophotometry in the analysis of omeprazole and pantoprazole sodium salt and corresponding impurities
(Pergamon-Elsevier Science Ltd, Oxford, 2003)
The first-order UV-derivative spectrophotometry, applying zero-crossing method was developed for the determination of omeprazole (OM), omeprazole sulphone (OMS), pantoprazole sodium salt (PANa), and N-methylpantoprazole ...
Determination of bifonazole in creams containing methyl- and propyl p-hydroxybenzoate by derivative spectrophotometric method
(Pergamon-Elsevier Science Ltd, Oxford, 2003)
A second order derivative spectrophotometric method for the determination of bifonazole in the presence of methyland propyl p-hydroxybenzoate as preservatives has been developed. The determination was performed in a 0.1 M ...
Structure-retention relationships of diuretics in reversed-phase liquid chromatography
(John Wiley and Sons Ltd, 2000)
Retention modelling in liquid chromatographic separation of simvastatin and six impurities using a microemulsion as eluent
(Wiley-VCH Verlag GMBH, Weinheim, 2004)
A novel and unique approach was used for retention modelling in the separation of simvastatin and six impurities by liquid chromatographic using a microemulsion as mobile phase. A microemulsion is a modification of a ...
Chronic alpha(1)-adrenoreceptor blockade produces age-dependent changes in rat thymus structure and thymocyte differentiation
(F Hernandez, Murcia, 2005)
In order to examine the influence of chronic alpha(1)-adrenergic receptor (alpha(1)-AR) blockade on the thymus structure and T-cell maturation, peripubertal and adult male rats were treated with urapidil (0.20 mg/kg BW/d; ...
Study of acid hydrolysis of bromazepam
(Canadian Science Publishing, Nrc Research Press, Ottawa, 2004)
Quantitative study of an acid hydrolysis of bromazepam, which in acidic solution simultaneously undergoes reversible 4,5-azomethine bond cleavage and protolytic reactions, was performed (t = 25degreesC). When an equilibrium ...
Triterpenic derivatives of Achillea alexandri-regis Bornm. & Rudski
(Pharmaceutical Soc Japan, Tokyo, 2004)
Investigation of the aerial parts of Achillea alexandri-regis led to the identification of 19 chemical constituents: twelve 3-O-fatty acid esters of triterpene alcohols arnidiol (1-4), maniladiol (5-8) and 16beta-hydroxy-lupeol ...
Derivative spectrophotometric method for determination of acidity constants of single step acid-base equilibria
(Elsevier Science BV, Amsterdam, 2001)
A general derivative spectrophotometric method for determination of acidity constants is developed. The method appears suitable in cases when classical spectrophotometry cannot be employed due to little differences in the ...
Chemometrical approach in fosinopril-sodium and its degradation product fosinoprilat analysis
(Springer Heidelberg, Heidelberg, 2004)
In this paper the experimental design has been applied to define the optimum chromatographic conditions for the separation of Fosinopril sodium and its degradation product, fosinoprilat. Fosinopril is a prodrug and after ...
Suppression of experimental autoimmune myocarditis by sodium fusidate (fusidin)
(Academic Press Ltd- Elsevier Science Ltd, London, 2005)
Fusidic acid and its sodium salt sodium fusidate (fusidin) are widely used antibiotics that possess immunomodulating properties. It has been shown that fusidin ameliorates the course of several organ-specific immunoinflammatory ...