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Приказ резултата 11-20 од 78
Acidity constants of cefetamet, cefotaxime and ceftriaxone; the effect of the substituent at C3 position
(Elsevier Science BV, Amsterdam, 2005)
Ionization constants of three cephalosporin antibiotics, cefetamet (CEF), cefotaxime (CFX) and ceftriaxone (CFTR) are determined using pH-potentiometric titrations at I= 0.1 M (NaCl) and t = 25 degrees C. Cefetarnet and ...
Acid-base equilibria and solubility of loratadine and desloratadine in water and micellar media
(Pergamon-Elsevier Science Ltd, Oxford, 2009)
Acid-base equilibria in homogeneous and heterogeneous systems of two antihistaminics, loratadine and desloratadine were studied spectrophotometrically in Britton-Robinson's buffer at 25 degrees C. Acidity constant of ...
High-performance liquid chromatographic method for the determination of bumetanide in pharmaceutical preparations
(Journal of Pharmaceutical and Biomedical Analysis, 1989)
Densitometric determination of conjugated oestrogens in the raw material and in pharmaceutical preparations
(Journal of Pharmaceutical and Biomedical Analysis, 1990)
A densitometric method for determination of complex mixtures of conjugated oestrogens in raw material and tablets was developed. The proposed procedure comprised hydrolysis of sodium sulphate esters of oestrone, equilin, ...
Spectrophotometric determination of mesterolone in tablets using 3-acetylaminobenzaldehydethiosemicarbazone
(Journal of Pharmaceutical and Biomedical Analysis, 1989)
Spectrophotometric determination of obidoxime chloride as its Pd(II) complex in water and injections
(Journal of Pharmaceutical and Biomedical Analysis, 1987)
It has been established that obidoxime chloride reacts with palladium(II) chloride in the pH range 3.9-8.0 and forms a yellow water-soluble (1:1) complex with maximum absorbance at 355 nm. By applying the methods of Sommer, ...
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), ...
Quality by Design in the development of hydrophilic interaction liquid chromatography method with gradient elution for the analysis of olanzapine
(Elsevier Science BV, Amsterdam, 2017)
This paper deals with the development of hydrophilic interaction liquid chromatography (HILIC) method with gradient elution, in accordance with Analytical Quality by Design (AQbD) methodology, for the first time. The method ...
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 ...
Urinary excretion studies of meldonium after multidose parenteral application
(Elsevier Science BV, Amsterdam, 2018)
Meldonium is a drug exhibiting cardioprotective and anti-ischemic effects. Due to its potential performance-enhancing benefit in sports, meldonium was added to the World Anti-Doping Agency list of prohibited substances in ...