Separation and purification of echinacoside from Penstemon barbatus (Can.) Roth by recycling high-speed counter-current chromatography

Enantiomeric separation of (R, S)-naproxen by recycling high speed counter-current chromatography with hydroxypropyl-β-cyclodextrin as chiral selector

“…Recycling elution mode was generally used in preparative HPLC separation to improve resolution factor. So far only two literatures [11,12] were available for using this technique in HSCCC separation. Two natural components with quite low separation factor were separated using recycling HSCCC.…”

Modeling of closed-loop recycling liquid–liquid chromatography: Analytical solutions and model analysis

“…4 also shows the movement of the chromatogram for the sample consisting of equal quantities of three solutes calculated by Eq. (28). As seen from Fig.…”

“…The first applications of the recycling principle in CCC were reported in [24,25]. The recycling CCC was successfully implemented for isolation of natural products [26][27][28][29][30][31]. In this paper, we will consider closed-loop isocratic recycling liquid-liquid chromatography.…”

Separation of anthraquinone compounds from the seed of Cassia obtusifolia L. using recycling counter‐current chromatography

“…In the recent years, recycling CCC has been successfully applied to separate natural products [8,9], which were difficult to be separated using batch elution CCC, for the recycling CCC can improve the resolution between target peaks by the apparent extension of the length of the CCC column as a result of the recycling.…”