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SPE and large-volume sample stacking in MEKC for determination of doxycycline in biological fluids: Comparison of direct injection to SPE-MEKC
(Wiley-VCH Verlag GMBH, Weinheim, 2008)
A novel and simple method has been developed for the determination of doxycycline (DOX) in biological fluids. The method is based on SPE, large-volume sample stacking (LVSS) and MEKC with UV-DAD detection. Six SPE cartridges ...
Antidepressants and anxiolytics: Novel tablet formulations / Antidepresivi i anksiolitici - novine u formulaciji tableta
(Savez farmaceutskih udruženja Srbije, Beograd, 2007)
Development of new dosage forms with uncompromised efficacy, safety and stability and improved tolerability and dosage regimen that would result in better patient compliance is an imperative in modern pharmacotherapy. ...
Malonic acid concentration as a control parameter in the kinetic analysis of the Belousov-Zhabotinsky reaction under batch conditions
(Royal Soc Chemistry, Cambridge, 2008)
The influence of the initial malonic acid concentration [MA](0) (8.00 x 10(-3) lt = [MA](0) lt = 4.30 x 10(-2) mol dm(-3)) in the presence of bromate (6.20 x 10(-2) mol dm(-3)), bromide (1.50 x 10(-5) mol dm(-3)), sulfuric ...
Physicochemical properties and fatty acid composition of Juglans regia cultivars grown in Serbia
(Springer, New York, 2008)
Tree cultivars (Jupiter, Sejnov, and Elit) of walnut (Juglans regia L.) were collected during the 2004 harvest from Cacak, Central Serbia. The chemical composition, including moisture, total oil content, crude protein, ...
Optimal conditions for extraction and simultaneous determination of sulfamethoxazole and trimethoprim in pharmaceuticals by micellar electrokinetic capillary chromatography
(Food & Drug Adminstration, Taipei, 2008)
A micellar electrokinetic capillary chromatography was performed at 25 degrees C and 30 kV (under pressure of 15 mbar), with 30 mM berate buffer (pH 9.0), 60 mM sodium dodecysulfate, and 10% (v/v) ethanol as background ...
Experimental design in chromatographic analysis of pramipexole and its impurities
(Slovensko Kemijsko Drustvo, Ljubljana, 2007)
Pramipexole is a dopamine D2-agonist/antiparkinsonian agent in which BI-II 546 CL, BI-II 751 xx and 2-amino benzothiazole are commonly found as impurities. Due to the lack of analytical data on pramipexole and its related ...
Electroreduction of cefetamet on mercury, platinum and gold electrodes / Elektroredukcija cefetameta na elektrodama od žive, platine i zlata
(Srpsko hemijsko društvo, Beograd, 2000)
The electroreduction of cefetamet (CEF) using gold and platinum electrodes has been investigated in slightly alkaline medium (pH 8.40) where adsorption, previously observed at mercury electrode, was pronounced. This ...
Spectrophotometric investigation of titanyl oxalate-morin complex in 50% v/v ethanol / Spektrofotometrijsko ispitivanje kompleksa titanil oksalat-morin u 50% v/v etanolu
(Savez farmaceutskih udruženja Srbije, Beograd, 2003)
The composition of the titanyl oksalat-morin complex was determined by spectrophotometric method of variations of equimolar solutions and by the mole ratios method. The investigation of the composition and the concentration ...
Chemical Composition and Antimicrobial Activity of the Essential Oil from Chaerophyllum aureum L. (Apiaceae)
(Natural Products Inc, Westerville, 2009)
The essential oils of the aerial parts and fruits of Chaerophyllum aureum L., collected from two Mountains in Serbia, were analyzed by GC and GUMS. Sabinene (18.5-31.6%), p-cymene (7.9-25.4%) and limonene (1.9-10.9%) were ...