Combined Effects of Mobile Phase Composition and Temperature on the Retention of Phenolic Antioxidants on an Octylsilica Polydentate Column

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F13%3A39896229" target="_blank" >RIV/00216275:25310/13:39896229 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S002196731301217X" target="_blank" >http://www.sciencedirect.com/science/article/pii/S002196731301217X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.chroma.2013.08.005" target="_blank" >10.1016/j.chroma.2013.08.005</a>

Result language
angličtina
Original language name
Combined Effects of Mobile Phase Composition and Temperature on the Retention of Phenolic Antioxidants on an Octylsilica Polydentate Column
Original language description
Combined effects of temperature and mobile-phase composition on retention and separation selectivity of phenolic acids and flavonoid compounds were studied in liquid chromatography on a polydentate Blaze C-8 silica based column. The temperature effects on the retention can be described by van't Hoff equation. Good linearity of Ink versus 1/T graphs indicates that the retention is controlled by a single mechanism in the mobile phase and temperature range studied. Enthalpic and entropic contributions to the retention were calculated from the regression lines. Generally, enthalpic contributions control the retention at lower temperatures and in mobile phases with lower concentrations of methanol in water. Semi-empirical retention models describe the simultaneous effects of temperature and the volume fraction of the organic solvent in the mobile phase. Using the linear free energy-retention model, selective dipolarity/polarizability, hydrogen-bond donor, hydrogen-bond acceptor and molecula
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CB - Analytical chemistry, separation
OECD FORD branch
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Project
<a href="/en/project/GAP206%2F12%2F0398" target="_blank" >GAP206/12/0398: Two-dimensional separations in liquid media</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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