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Приказ резултата 11-20 од 23
The use of a response surface methodology on HPLC analysis of methyldopa, amiloride and hydrochlorothiazide in tablets
(Pergamon-Elsevier Science Ltd, Oxford, 2001)
A multifactor optimisation technique is successfully applied to develop a new HPLC method in which methyldopa, hydrochlorothiazide and amiloride were analysed and determined on a C18 column with detection at 286 nm. The ...
A preliminary study of beta-cyclodextrin/metoprolol tartrate inclusion complex for potential enantiomeric separation
(Pergamon-Elsevier Science Ltd, Oxford, 2001)
The inclusion complex formation between Metoprolol tartarata (MeT) and beta -cyclodextrin (beta -CD) has been investigated using hyperchromic shift at lambda (max) 274.4 nm of MeT. Different parameters such as stirring ...
Simultaneous HPLC determination of nitrendipine and impurities of the process of synthesis
(Pergamon-Elsevier Science Ltd, Oxford, 2001)
A method has been developed for separation of nitrendipine and its impurities of reaction partners and side reaction products by high-performance liquid chromatographic method on a RP-ls column and detection at 238 nm. The ...
Statistical optimization of a reversed-phase liquid chromatographic method for the analysis of amiloride and hydrochlorothiazide in tablets
(Pergamon-Elsevier Science Ltd, Oxford, 2000)
A method has been developed for the separation of hydrochlorothiazide and amiloride by high-performance liquid chromatographic (HPLC) method on a C-18 column with detection at 280 nm. The optimal conditions of separation ...
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 ...
Chiral ligand-exchange chromatography as the screening method for proposed modifications in exametazime synthesis to enhance diastereoselectivity
(Elsevier Science BV, Amsterdam, 2004)
Tc-99m(V)-d,l-HM-PAO complex is well-known radiopharmaceutical for regional cerebral blood flow imaging. The proposed modifications in exametazime, hexamethylpropyleneamine oxime (HM-PAO) (4,8-diaza-3,6,6,9-tetramethylun ...
Determination of the ionization constants of 4-iodo-2,6-dimethylphenylcarbamoylmethyl iminodiacetic acid
(Elsevier Science BV, Amsterdam, 2004)
In order to develop a radiopharmaceutical for hepatobiliary scintigraphy with better hepatobiliary properties new ligand for complexation of Tc-99m, 4-iodo-2,6-dimethylphenylcarbamoylmethyl iminodiacetic acid (METHYLIODIDA), ...
High-performance liquid chromatographic method for the determination of moclobemide and its two major metabolites in human plasma
(Elsevier Science BV, Amsterdam, 2007)
A selective, sensitive, and simple high-performance liquid chromatographic (HPLC) method was developed for the determination of moclobemide and its two major metabolites, Ro 12-5637 and Ro 12-8095, in human plasma. Sample ...
Study on protolytic equilibria of lorazepam and oxazepam by UV and NMR spectroscopy
(Pergamon-Elsevier Science Ltd, Oxford, 2003)
Protolytic equilibria in homogeneous and heterogeneous systems of lorazepam and oxazepam, which are sparingly soluble ampholytes from the class of 1,4-benzodiazepines, were studied at 25 degreesC and ionic strength of 0.1 ...