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Quantitative analysis of sulpiride and impurities of 2-aminomethyl-1-ethylpyrrolidine and methyl-5-sulphamoyl-2-methoxybenzoate in pharmaceuticals by high-performance thin-layer chromatography and scanning densitometry
(AOAC International, Gaithersburg, 1999)
A simple and reliable thin-layer chromatographic method for determining sulpiride and impurities of 2-aminomethyl-1-ethylpyrrolidine and methyl-5-sulphamoyl-2-methoxybenzoate was developed and validated. A methylene ...
Comparison of spectrophotometric and UV-densitometric methods for the determination of celiprolol hydrochloride in tablets
(Wiley, 1998)
Spectrophotometric and UV-densitometric methods for the determination of celiprolol hydrochloride in tablet formulations were compared. Celiprolol hydrochloride and benzylorange react in a 1:1 ratio in the presence of ...
Effects of flavonoids on plasma coagulation tested in vitro by "screening tests"
(Društvo medicinskih biohemičara Srbije i Crne Gore, Beograd i Univerzitet u Beogradu - Farmaceutski fakultet, Beograd, 1999)
The effects of four flavonoids: rutin, quercetin, morin and hesperidin on plasma coagulation has been examined by measuring aPTT, TT and PT. It is found that water solution of these flavonoids shows no effects in the ...
HPTLC assay of cephalexin and cefaclor in pharmaceuticals
(John Wiley and Sons Ltd, 1998)
A simple and reliable HPTLC method for the simultaneous determination of cephalexin and cefaclor is developed and validated. The methanol-ethyl acetate-acetone-water (5:2.5:2.5:1.5 v/v/v/v) solvent system is used for the ...
Aromatic Plants of Yugoslavia. I. Chemical Composition of Oils of Achillea millefolium L. ssp. pannonica (Scheele) Hayak, A. crithmifolia W. et K., A. serbica Nym. and A. tanacetifolia All.
(Allured Publishing Corp., 1999)
We used GC/MS to determine the chemical composition of the essential oils of
wild Achillea plants native to Yugoslavia: Achillea millefolium L. ssp. pannonica
(Scheele) Hayak, A. crithmifolta W. et K., A. serbica Nym. ...
Flavonoid and phenolic acid patterns in seven Hieracium species
(Biochemical Systematics and Ecology, 1999)
We propose a new model for landslide dynamics under the assumption of a delay failure mechanism. Delay failure is simulated as a delayed interaction between adjacent blocks, which mimics the relationship between the ...
Crystal structure of a mixture of lupeol-acetate tautomers isolated from Hieracium plumulosum A. Kerner, Asteraceae
(Journal of Molecular Structure, 1997)
Transparent single crystals obtained from the purified extract of the plant Hieracium plumulosum A. Kerner, Asteraceae were submitted to spectroscopic and X-ray studies. The spectroscopic (infra-red, mass spectrometry, 1 ...
Coulometric determination of sulfadimethoxine and sulfafurazole.
(Acta Poloniae Pharmaceutica - Drug Research, 1990)
A chlorocoulometric method for determination of sulfadimethoxine and sulfafurazole in pharmaceutical preparation is proposed. The electrogeneration of chloride is carried out in the supporting electrolyte consisting of 0.5 ...
Potentiometric determination of captopril
(Journal de Pharmacie de Belgique, 1990)