Research Article

Optimization of the Purifying Process for Columbianetin-β-D-Glucopyranoside from Angelicae Pubescentis Radix and Evaluation of Its Analgesic Activity Using Hot Plate Test

Figure 7

HPLC chromatograms of the sample: (a) before treatment and (b) after treatment by the GDX-201 resin; (c) by PHPLC; (d) CBG purified by PHPLC.
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