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The potential of corona charged aerosol detector for investigation of telmisartan-β-cyclodextrin inclusion complexes

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2019
The_potential_of_pub_2019.pdf (996.7Kb)
Authors
Maljurić, Nevena
Golubović, Jelena
Otašević, Biljana
Krmar, Jovana
Zečević, Mira
Protić, Ana
Article (Published version)
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Abstract
Cyclodextrins (CDs) are widely used in pharmaceutical analysis due to its biodegradability and eco-friendly character. The particular structure of CDs, characterized by hydrophobic cavity, enables the formation of inclusion complexes with variety of organic compounds. As structures lacking chromophores, CDs could not be detected by Photodiode Array (PDA) detector and Corona Charged Aerosol Detector (CAD) was introduced as the most appropriate detector for the formed complexes. The aim of the study was to investigate the degree of complexation between telmisartan, used as a model substance, and β-CD. Moreover, the effect of different β-CD concentrations (5-15 mM) and pH of the aqueous part of mobile phase (3-7) on the degree of complexation was also assessed. The intensity of the formed complex appeared to be the highest when 15 mM β-CD was used for the complexation. Also, it was noticed that the increase in peak areas with an increasing β-CD concentration was more evident at pH 7 in co...mparison with the same trend at lower pH values. The reproducibility of the measurement was confirmed by low relative standard deviation (RSD) of peak areas within five measurements. These findings support the use of HPLC-CAD methods for studying the process of inclusion complexes formation.

Keywords:
Corona Charged Aerosol Detector / Inclusion complex / Telmisartan / β-Cyclodextrin
Source:
Arhiv za farmaciju, 2019, 69, 1, 1-14
Publisher:
  • Pharmaceutical Association of Serbia
Projects:
  • Synthesis, Quantitative Structure and Activity Relationship, Physico-Chemical Characterisation and Analysis of Pharmacologically Active Substances (RS-172033)

DOI: 10.5937/arhfarm1901001M

ISSN: 0004-1963

Scopus: 2-s2.0-85090608793
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URI
https://farfar.pharmacy.bg.ac.rs/handle/123456789/3666
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  • Radovi istraživača / Researchers’ publications
Institution
Pharmacy

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