2003
Separation of Polycyclic Aromatic Nitrogen Heterocycles on Different Octadecylsilica Stationary Phases
KOČÍ, Kamila a Zdeněk ŠIMEKZákladní údaje
Originální název
Separation of Polycyclic Aromatic Nitrogen Heterocycles on Different Octadecylsilica Stationary Phases
Název česky
Separace polycyklyckých aromatických uhlovodíků na různých reversních fázích
Autoři
KOČÍ, Kamila (203 Česká republika) a Zdeněk ŠIMEK (203 Česká republika, garant)
Vydání
Siófok, Hungary, 5th Balaton Symphosyum on High Performance Separation Methods, od s. 53-53, 1 s. 2003
Nakladatel
Research Institute for Medical Plants
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
10406 Analytical chemistry
Stát vydavatele
Maďarsko
Utajení
není předmětem státního či obchodního tajemství
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova anglicky
Polycyclic Aromatic Nitrogen Heterocycles; Octadecylsilica Stationary Phases
Změněno: 31. 1. 2006 16:18, doc. RNDr. Zdeněk Šimek, CSc.
Anotace
V originále
his study deals with the separation of basic polycyclic aromatic nitrogen heterocycles (PANH) by reversed-phase high-performance liquid chromatography (RP-HPLC) on two octadecylsilane stationary phases made by different manufacturers. The aims of our investigation were to evaluate surface properties of the selected sorbents (hydrophobicity and silanol activity) and to compare the retention behavior of tested PANH on these stationary phases. Experiments were carried out with the following members of basic PANH: quinoline and its mono-methyl derivatives, isoquinoline, benzo[h]quinoline, acridine and phenanthridine. Zorbax Eclipse XDB C18 (Agilent Technologies) and Purospher Star RP-18e (Merck) both in 250 x 4,6 mm package with 5 um i.d. were used as octadecylsilane stationary phases. The evaluation procedures as well as the separation experiments studying retention behavior of basic PANH were carried out under isocratic elution conditions. Evaluation of both reversed-phase sorbents was performed via empirical method based on chromatographic data of the test compounds chosen according to the hydrophobicity and silanol activity of tested sorbents surfaces. During separation experiments several different elution conditions were applied on each column. Especially buffer concentration its pH and ionic strength in conjunction with pKa values of individual heterocycles were taken into consideration.
Návaznosti
GA525/03/0367, projekt VaV |
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