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Investigation of the retention mechanisms of amlodipine besylate, bisoprolol fumarate, and their impurities on three different HILIC columns

Authorized Users Only
2018
Authors
Kasagić-Vujanović, Irena
Jančić-Stojanović, Biljana
Ivanović, Darko
Article (Published version)
Metadata
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Abstract
Using theoretical models, retention mechanisms of amlodipine besilate and its impurities D, E, and F were tested, as well as bisoprolol fumarate and its impurities A, C, K, and L. Appropriate theoretical retention models for tested compounds were used, which enabled the determination of retention mechanisms responsible for the separation of tested compounds on three different HILIC column: silica, amino, and diol. In order to describe the effect of ratio of aqueous and organic portion of the mobile phase on the retention behavior of tested compounds, as well as the consideration of shares of partition and adsorption processes in HILIC retention mechanism in all three columns, partitioning and adsorption retention theoretical models were calculated. For this purpose, the water content was varied in the range from 4% to 29%, corresponding to the HILIC region of mobile phase composition. During the experiment, values of other factors of mobile phase were maintained at a constant level. Re...gression coefficients of partition and adsorption retention models and the corresponding determination coefficients were determined (R-2). Partitioning models for all tested compounds on amino column had higher R-2 values, while adsorption models for all compounds tested on silica and diol column had higher R-2 value. [GRAPHICS] .

Keywords:
Adsorption model / amlodipine / bisoprolol / HILIC / partitioning model / retention mechanisms
Source:
Journal of Liquid Chromatography & Related Technologies, 2018, 41, 9, 523-531
Publisher:
  • Taylor & Francis Inc, Philadelphia
Projects:
  • Modelling of different chromatographic systems with chemometrical approach in pharmaceutical analysis (RS-172052)

DOI: 10.1080/10826076.2018.1476380

ISSN: 1082-6076

WoS: 000448729100008

Scopus: 2-s2.0-85055431229
[ Google Scholar ]
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URI
http://farfar.pharmacy.bg.ac.rs/handle/123456789/3041
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  • Radovi istraživača / Researchers’ publications
Institution
Pharmacy

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