Претраживање
Приказ резултата 41-50 од 106
Protolytic equilibria in homogeneous and heterogeneous systems of ketoconazole and its direct spectrophotometric determination in tablets / Protolitičke ravnoteže u homogenom i heterogenom sistemu ketokonazola i njegovo direktno spektrofotometrijsko određivanje u tabletama
(Srpsko hemijsko društvo, Beograd, 2005)
The acid-base equilibria of a diprotic, slightly hydrosoluble base ketoconazole were studied in homogeneous and heterogeneous water systems. The determinations were performed at 25ºC at a constant ionic strength of M(NaCl). ...
Spectroscopic investigation of the effects of monovalent cations on the dynamics of protonic species in the hydrates of 12-tungstophosphoric acid salts
(Srpsko hemijsko društvo, Beograd, 1996)
Heteropoly acids arc well known as supcrionic protonic conductors at room temperature. The conductivity depends upon the temperature and relative humidity of the surrounding. Recent results show that the conductivity is ...
European Analytical Column No. 46
(Srpsko hemijsko društvo, Beograd, 2018)
A kinetic method for the determination of selenium(IV) in ethanol solution
(Srpsko hemijsko društvo, Beograd, 1997)
A kinetic method for the determination of selenium(IV) in ethanol solution is proposed. The method is based on the action of selenium(IV) upon the oxidation of Nile Blue A by hydrogen peroxide in the presence of phosphate ...
Determination of sodium fusidate in dosage forms by high performance liquid chromatography
(Srpsko hemijsko društvo, Beograd, 1998)
A simple HPLC procedure, suitable for the determination of sodium fusidate (SF) in dosage forms, was developed. The method involves using a UV detector (208 nm) in the presence of basic buffered media (pH 7.25) under ...
Determination of midazolam in pharmaceutical dosage forms by second-order derivative ultraviolet spectrophotometry
(Srpsko hemijsko društvo, Beograd, 1997)
A second-order derivative ultraviolet spectroscopic method for the determination of midazolam in the presence of maleic acid is described. The assays were carried out in borate buffer (pH 9.2) at a wavelength of 222 nm, ...
Spectrophotometric investigation of the uranil(II)-hesperidin complex in 70% methanol
(Srpsko hemijsko društvo, Beograd, 1998)
The composition and stability constant of the UO2(II)-hesperidin complex were determined by suitable spectrophotometric methods and pH-metric measurements. II was found that the uranil ion and hesperidin form a 1:2 complex ...
European Analytical Column No. 47
(Srpsko hemijsko društvo, Beograd, 2019)
High performance liquid chromatographic determination of clindamycin in pharmaceutical formulations
(Srpsko hemijsko društvo, Beograd, 1997)
A specific and simple HPLC procedure was developed, su table for the determination of dindamycin hydrochloride monohydrate (CLHC) and clindamycin 2-dihydrogenphosphate (CLPH) in pharmaceutical formulations. Rp-HPLC analysis ...
New evidence of transient complex oscillations in a closed, well-stirred belousov-zhabotinsky system / Novozabeležene tranzijentne kompleksne oscilacije u zatvorenom belousov-žabotinski reakcionom sistemu sa dobrim mešanjem
(Srpsko hemijsko društvo, Beograd, 2006)
Some new experimental evidence of complex irregular oscillations in the Belousov-Zhabotinsky reaction realized in a batch reactor is presented. The results were obtained under relatively low cerium and malonic acid ...