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Typical HPLC-ELSD chromatograms of VG. Raw (A), 120°C for 2 h (B), 4 h (C), 8 h (D), 12 h (E), 16 h (F), 20 h (G). Peak identities: 1, MR1; 2, Rg1+Re; 3, MR2; 4, unknown 1; 5, VR1+VR2; 6, unknown 2; 7, Rb1; 8, Rc; 9, Rb2; 10, 20(S)-Rh1; 11, 20(R)-Rh1; 12, Rd; 13, Rk3; 14, Rh4; 15, 20(S)-Rg3; 16, 20(R)-Rg3; 17, Rk1; 18, Rg5.
