Претраживање
Приказ резултата 11-20 од 29
Monitoring of impurity level of valsartan and hydrochlorothiazide employing an RP-HPLC gradient mode
(Taylor & Francis Inc, Philadelphia, 2007)
The multi-component preparation Co -Diovan (R) is indicated for the hypertension treatment in patients whose blood pressure is not adequately controlled by monotherapy. Its active ingredients are valsartan and hydrochlorothiazide. ...
TLC determination of glimepiride and its main impurities in pharmaceuticals
(Taylor & Francis Inc, Philadelphia, 2013)
A quantitative TLC method was developed for the simultaneous separation and quantification of glimepiride and its main degradation impurities, glimepiride-sulfonamide, and glimepiride-carbamate. Chromatographic analysis ...
Forced degradation study of torasemide: Characterization of its degradation products
(Taylor & Francis Inc, Philadelphia, 2013)
Torasemide was subjected to forced degradation studies. Stress conditions were varied concerning hydrolysis (acid, base, and neutral), oxidation, photolysis, and thermal degradation in order to identify the potential ...
TLC determination of tiapride hydrochloride and its impurities in pharmaceuticals
(Taylor & Francis Inc, Philadelphia, 2012)
A simple and sensitive HPTLC method for separation and determination of tiapride hydrochloride and its degradation products has been developed and evaluated. Analysis of tiapride hydrochloride and impurities III, VII, and ...
TLC determination of glimepiride and its main impurities in pharmaceuticals
(Taylor & Francis Inc, Philadelphia, 2013)
A quantitative TLC method was developed for the simultaneous separation and quantification of glimepiride and its main degradation impurities, glimepiride-sulfonamide, and glimepiride-carbamate. Chromatographic analysis ...
Analysis of the retention behavior of selected antiarrhythmics by means of thin-layer chromatography
(Taylor & Francis Inc, Philadelphia, 2019)
The retention behavior of ivabradine, its 11 related compounds, diltiazem and verapamil has been examined by thin-layer chromatography using non-polar stationary phase (RP-18) and the following mobile phases: methanol-6.25% ...
Optimization of Chromatographic Separation of Acetylsalicylic Acid, Amlodipine, Impurity a of Amlodipine, and Atenolol in Hydrophilic Interaction Liquid Chromatography Employing DoE Methodology
(Taylor & Francis Inc, Philadelphia, 2015)
The retention behavior of substances in hydrophilic interaction liquid chromatography (HILIC) is difficult to predict. Mixture investigated in this paper consists of acetylsalicylic acid, amlodipine, impurity A of amlodipine, ...
Investigation of tropicamide and benzalkonium chloride stability using liquid chromatography
(Taylor & Francis Inc, Philadelphia, 2012)
In this study, a development of stability indicating method (SIM) that could be used to detect a decrease in the amount of tropicamide and benzalkonium chloride due to their degradation is described. In the method development, ...
Influence of selected mobile phase properties on the TLC retention behavior of ziprasidone and its impurities
(Taylor & Francis Inc, Philadelphia, 2017)
Influence of nine different solvents, either alone or in a mixture, on the retention behavior of ziprasidone and its five impurities were examined by normal-phase thin-layer chromatography. Migration distances of the ...
Determination of Moxonidine and Its Impurities by Thin-Layer Chromatography
(Taylor & Francis Inc, Philadelphia, 2015)
A thin-layer chromatographic method for simultaneous determination of moxonidine and its four impurities was developed and validated. Separation of the examined compounds was performed on chromatographic plates precoated ...