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Приказ резултата 1-10 од 775
Simultaneous determination of loratadine and preservatives in syrups by thin-layer chromatography
(Univ Silesia, Inst Chemistry, Katowice, 2007)
Simple, rapid, and precise densitometric TLC methods have been established for simultaneous determination of loratadine and preservatives in loratadine-sodium benzoate and loratadine-methylparaben-propylparaben mixtures. ...
Correlation of oxidative stress parameters and inflammatory markers in coronary artery disease patients
(Pergamon-Elsevier Science Ltd, Oxford, 2007)
Objectives: In addition to many traditional risk factors for coronary artery disease (CAD) development, enhanced oxidative stress and inflammation are serious conditions that may also be classified as novel risk factors. ...
Application of Mixture Experimental Design in the Formulation and Optimization of Matrix Tablets Containing Carbomer and Hydroxypropylmethylcellulose
(Pharmaceutical Soc Korea, Seoul, 2009)
Using mixture experimental design, the effect of carbomer (Carbopole (R) 971P NF) and hydroxypropylmethylcellulose (Methocel (R) K100M or Methocel (R) K4M) combination on the release profile and on the mechanism of drug ...
Justification of Biowaiver for Carbamazepine, a Low Soluble High Permeable Compound, in Solid Dosage Forms Based on IVIVC and Gastrointestinal Simulation
(Amer Chemical Soc, Washington, 2009)
The aim of the present study was to use gastrointestinal simulation technology and in vitro-in vivo correlation (IVIVC) as tools to investigate a possible extension of biowaiver criteria to BCS class II drugs using ...
Monitoring of Simvastatin impurities by HPLC with microemulsion eluents
(Springer Heidelberg, Heidelberg, 2006)
The use of microemulsions as eluents in HPLC has shown excellent potential. We have developed a novel approach for the analysis of Simvastatin and its six impurities, applying microemulsions as mobile phase. The method was ...
Polyphenol contents and antioxidant activity of soybean seed extracts
(Elsevier Sci Ltd, Oxford, 2008)
The antioxidant activity and contents of various polyphenol classes in the seeds of 20 soybean hybrids were evaluated. Total polyphenols, tannins and proanthocyanidins were determined after extraction of plant material ...
Analyte pulse perturbation technique for the determination of 6-O-acetylmorphine in seized street drug samples
(Chemical Soc Japan, Tokyo, 2007)
A pulse perturbation technique was applied to the Bray-Liebhafsky (BL) oscillatory reaction system in a stable nonequilibrium stationary state close to the bifurcation point, to determine micro-quantitatively 6-O-acetylmorphine ...
Modeling influence of the malonic acid on oscillatory evolution of the Belousov Zhabotinsky reaction in closed reactor
(Savez hemijskih inženjera, Beograd, 2009)
Several known models of the Belousov-Zhabotinski (BZ) reaction and their use for the numerical Simulation under conditions of the closed. isothermal reactor are presented. Critical valuation of the models, based on comparative ...
Kinetic determination of morphine by means of Bray-Liebhafsky oscillatory reaction system using analyte pulse perturbation technique
(Elsevier Science BV, Amsterdam, 2007)
A novel kinetic method for micro-quantitative determinations of morphine (MH) is proposed and validated. The method is based on the potentiometric monitoring of the concentration perturbations of the oscillatory reaction ...
Temperature influence on the malonic acid decomposition in the Belousov-Zhabotinsky reaction
(Maik Nauka/Interperiodica/Springer, New York, 2009)
The kinetic investigations of the malonic acid decomposition (8.00 x 10(-3) mol dm(-3) a parts per thousand currency sign [CH(2)(COOH)(2)](0) a parts per thousand currency sign 4.30 x 10(-2) mol dm(-3)) in the Belousov-Zhabotinsky ...