Tandem of Countercurrent Separation and qHNMR Enables Gravimetric Analyses: Absolute Quantitation of the Rhodiola rosea Metabolome

Off-line combination of countercurrent separation (CCS) and quantitative 1H NMR (qHNMR) methodologies enabled the systematic dissection and gravimetric quantification of a chemically complex Rhodiola rosea crude extract (RCE). The loss-free nature and high selectivity of CCS achieved the quantitativ...

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