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| Figure 4: Stacked-plot of the 1H HR/MAS NMR spectra of (R/S)-flurbiprofen together with a) the derivatized amylose-based CSP (AP), b) Eurocel 01 and c) Eurocel 03. Signal assignment was performed with the help of a 2D HR/MAS 1H-1H-COSY NMR spectrum due to the chemical structure presented in Figure 1. S=solvent (methanol, water). |
