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  • An almost orthogonal comprehensive two-dimensional liquid chromatogramy was developed for the separation of phenolic and flavone natural antioxidants by using combinations of a polyethylene glycol silica micro-column in the first dimension and a porous-shell fused-core C18 column in the second dimension, both in the reversed-phase mode. System ortogonality was improved using parallel gradients of acetonitrile in buffered mobile phase. A new approach was proposed to optimize matching segmented gradient profiles in the two dimensions. An algorithm was developed for automatic corrections of the shifts in retention in the second dimension induced by the parallel two-dimensional gradient operation technique. Using the porous-shell C18 column in the second dimension at elevated temperature (60 °C) and high pressure (480 bar) with optimized segmented profiles of the parallel gradients in the two dimensions, the overall separation time for comprehensive LCxLC was reduced to 30 min.
  • An almost orthogonal comprehensive two-dimensional liquid chromatogramy was developed for the separation of phenolic and flavone natural antioxidants by using combinations of a polyethylene glycol silica micro-column in the first dimension and a porous-shell fused-core C18 column in the second dimension, both in the reversed-phase mode. System ortogonality was improved using parallel gradients of acetonitrile in buffered mobile phase. A new approach was proposed to optimize matching segmented gradient profiles in the two dimensions. An algorithm was developed for automatic corrections of the shifts in retention in the second dimension induced by the parallel two-dimensional gradient operation technique. Using the porous-shell C18 column in the second dimension at elevated temperature (60 °C) and high pressure (480 bar) with optimized segmented profiles of the parallel gradients in the two dimensions, the overall separation time for comprehensive LCxLC was reduced to 30 min. (en)
Title
  • Optimization of two-dimensional gradient liquid chromatography separations
  • Optimization of two-dimensional gradient liquid chromatography separations (en)
skos:prefLabel
  • Optimization of two-dimensional gradient liquid chromatography separations
  • Optimization of two-dimensional gradient liquid chromatography separations (en)
skos:notation
  • RIV/00216275:25310/09:00008420!RIV10-MSM-25310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA203/07/0641), Z(MSM0021627502)
http://linked.open...iv/cisloPeriodika
  • 16
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 332033
http://linked.open...ai/riv/idVysledku
  • RIV/00216275:25310/09:00008420
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Flavones; Phenolic compounds; Comprehensive 2D LC; Gradient elution; Porous-shell columns (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [B096DCD85772]
http://linked.open...i/riv/nazevZdroje
  • Journal of Chromatography A
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 1216
http://linked.open...iv/tvurceVysledku
  • Hájek, Tomáš
  • Jandera, Pavel
  • Česla, Petr
http://linked.open...n/vavai/riv/zamer
issn
  • 0021-9673
number of pages
http://localhost/t...ganizacniJednotka
  • 25310
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