Figure 2.
HPLC chromatogram of standard matrine in different mobile phase condition. (a) Methanol: water = 14 : 86; (b) methanol: 0.01 mol/LKH2PO4 = 20 : 80 (PH = 6~7); (c) acetonitrile: anhydrous ethanol: 3% H3PO4 = 80 : 10 : 10.
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