T. KowalskaTaylor & Francis GroupJournal of Liquid Chromatography & Related TechnologiesPrus, W.; Kowalska, T. Optimization of the mobile phase composition in NP-TLC with the chemically bonded 3-cyanopropyl stationary phase. J. Liq. Chromatogr. & Rel. Technol. 1999, 22, 15 - 27....
In an attempt to improve the resolution between the two peaks (always lower than 1.5), a minor amount of NH4OH (0.1 % v/v) was added to the mobile phase. As expected, a reduction of the enantiomer retention turned out as a result of the shielding effect of this additive for the unde...
The retention behavior of twenty-four alkaloids has been investigated in normal-phase systems on thin layers of aminopropylsilica and bare silica developed with a variety of binary mobile phases prepared from n-hexane and polar modifiers - 2-propanol, ethyl acetate, methyl ethyl ketone, ...
TLC performance was enhanced, as evidenced by ten-fold reduction in theoretical plate height for both analytes using the 1-butanol:acetic acid:water mobile phase, and an increased difference in retention time between malachite green and fast green (螖R...
Chromatographic techniques such as high performance liquid chromatography (HPLC), gas chromatography (GC), supercritical fluid chromatography (SFC), thin layer chromatography (TLC), and capillary electrochromatography (CEC) are still the most convenient and cost-effective approaches to obtain optically ...