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

Table 1

Physical properties and adsorption/desorption capacity of five test macroporous resins.

Resins	Structure	Polarity	Particle size (mm)	Surface area (m^2/g)	Adsorption capacity (mg/g)	Desorption capacity (mg/g)	Desorption ratio (%)
D101	Polystyrene	Nonpolar	0.30–1.25	480–550	3.18 ± 0.05	2.38 ± 0.02	74.96 ± 0.73
AB-8	Polystyrene	Weakly polar	0.30–1.25	480–520	3.48 ± 0.05	2.73 ± 0.14	78.34 ± 1.10
HP-20	Polystyrene	Nonpolar	0.30–1.25	550–600	3.09 ± 0.07	2.23 ± 0.17	72.16 ± 1.17
DA-201	Polystyrene	Polar	0.30–1.25	≧200	7.44 ± 0.48	7.04 ± 0.23	94.87 ± 4.72
GDX-201	Poly(divinylbenzene)	—	0.30–1.25	510	9.01 ± 0.08	8.84 ± 0.07	98.13 ± 2.60