Study of polyaniline-coated silica gel as a stationary phase in different modes of capillary liquid chromatography

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F17%3A10362649" target="_blank" >RIV/00216208:11310/17:10362649 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s00706-017-1965-1" target="_blank" >http://dx.doi.org/10.1007/s00706-017-1965-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00706-017-1965-1" target="_blank" >10.1007/s00706-017-1965-1</a>

Result language
angličtina
Original language name
Study of polyaniline-coated silica gel as a stationary phase in different modes of capillary liquid chromatography
Original language description
Separation potential of a stationary phase based on polyaniline-coated silica gel porous spherical particles was investigated in different chromatographic modes of capillary liquid chromatography. L-Tryptophan and three of its structural derivatives with modified amino or carboxylic functionality were used to investigate the retention factor curves under different mobile phase composition including pH variation. Some retention curves pass minimum which indicates that more than one chromatographic mode can be employed to retain the relevant solute. The positional isomers of aminoacetophenone and caffeine and its demethylated analogs-theobromine and theophylline-were used as separation probes in normal phase, hydrophilic interaction liquid chromatography, and reversed phase modes. The stationary phase exhibits the mixed-mode retention mechanism; therefore, it is not easy to predict the elution order of the solutes only according to their polarity. Even slightly hydrophilic compounds can be sufficiently retained in reversed phase mode using polyaniline-coated silica gel stationary phase. All positional isomers of aminoacetophenone were separated for the first time in normal phase and reversed phase modes.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10406 - Analytical chemistry

Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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