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Приказ резултата 1-10 од 46
RP-HPLC determination of vitamins, folic acid and B12 in multivitamin tablets / RP-HPLC određivanje vitamina B1, B3, B6, folne kiseline i B12 multivitaminskih tableta
(Srpsko hemijsko društvo, Beograd, 2005)
A simple and sensitive reversed-phase, ion-pair HPLC method was developed and validated for the simultaneous determination of B-group vitamins, thiamine chloride hydrochloride (B1), nicotinamide (B3), pyridoxine hydrochloride ...
Normal-phase thin-layer chromatography of some angiotensin converting enzyme (ACE) inhibitors and their metabolites / Normalno-fazna tankoslojna hromatografija nekih ACE inhibitora i njihovih metabolita
(Srpsko hemijsko društvo, Beograd, 2009)
The separation and chromatographic behaviour of five ACE (angiotensin converting enzyme) inhibitors and their four active metabolites were investigated by normal-phase thin-layer chromatography on silica using several mono- ...
Kinetic study of the reaction between sodium chloroacetate and potassium ethylxanthogenate / Kinetička ispitivanja reakcije između natrijum-hloracetata i kalijum-etil-ksantata
(Srpsko hemijsko društvo, Beograd, 2007)
The reaction kinetics of the synthesis of sodium ethyl xanthogeneacetate from potassium ethylxanthogenate and sodium chloroacetate in distilled water as the reaction medium at 25, 30, 35 and 40°C, were investigated. The ...
Determination of quercetin in pharmaceutical formulations via its reaction with potassium-titanyloxalate: Determination of the stability constants of the quercetin-titanyloxalato complex / Određivanje kvercetina u farmaceutskim preparatima preko reakcije sa kalijum-titaniloksalatom - određivanje konstanti stabilnosti kvercetin-titaniloksalatnog kompleksa
(Srpsko hemijsko društvo, Beograd, 2005)
Asimple, rapid and accurate procedure for the quantitative determination of quercetin in its pure form and in formulations has been developed. The method is based on the spectrophotometric determination of a complex formed ...
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). ...
Inorganic analysis of herbal drugs, Part I: Metal determination in herbal drugs originating from medicinal plants of the family Lamiacae / Neorganska analiza biljnih droga, I deo - određivanje metala u biljnim drogama dobijenih iz biljaka familije Lamiacae
(Srpsko hemijsko društvo, Beograd, 2005)
Elemental profiles of the total analyte content of major, minor and trace elements (Cu, Zn, Mn, Fe, K, Ca, Mg, Al, Ba and B) in 8 herbal drugs, originating from medicinal plants of the family Lamiacae, were determined. ...
Spectrophotometric investigation of the uranyl-phenylephrine system / Spektrofotometrijsko ispitivanje uranil-fenilefrin sistema
(Srpsko hemijsko društvo, Beograd, 2007)
Using spectrophotometric methods and pH-metric measurements, it was found that the uranyl ion and phenylephrine form a 1:2 complex in the pH region 2.50-4.25 with two absorption maxima at 314.2 nm and 340.6 nm. The ...
Inorganic analysis of herbal drugs. Part II: Plant and soil analysis: Diverse bioavailability and uptake of essential and toxic elements / Neorganska analiza biljnih droga. II deo - analiza biljaka i zemljišta - različita bioraspoloživost i unos esencijalnih i toksičnih elemenata
(Srpsko hemijsko društvo, Beograd, 2006)
Eleven elements (Cu, Zn, Mn, Fe, K, Ca, Mg, Ni, Cd, Pb and Cr) in seven herbal drugs (Salviae folium, Menthae piperitae folium, Melissae folium, Lavandulae flos, Basilici herba, Marubii herba and Origani herba) and in ...
The effect of β-cyclodextrin and pH on bifonazole hydrosolubility / Uticaj β-ciklodekstrina i PH na rastvorljivost bifonazola u vodi
(Srpsko hemijsko društvo, Beograd, 2004)
The equlibria of bifonazole in saturated water solution within the pH range 4 to 10 [I = 0.1 mol/dm3 (NaCl); 25 ºC] were studied spectrophotometrically. Based on the equlibrium constants determined in a heterogeneous system, ...