After removing sediment, the supernatant was loaded onto a X-5 macroporous resin column (100 cm9 8 cm, Nankai University Chemical Factory) at a flow rate of 2.0 mL/min and eluted with 30% acetone containing 0.01 NH4Cl.
After removing sediment, the supernatant was loaded onto a X-5 macroporous resincolumn (100 cm9 8 cm, Nankai University Chemical Factory) at a flow rate of 2.0 mL/min and eluted with 30% acetone containing 0.01 NH4Cl.