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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

—

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Monatshefte für Chemie - Chemical Monthly

ISSN

0026-9247

e-ISSN

—

Svazek periodika

148

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

AT - Rakouská republika

Počet stran výsledku

7

Strana od-do

1605-1611

Kód UT WoS článku

000407126500007

EID výsledku v databázi Scopus

2-s2.0-85021811931