Fig. 2
From: Quality control and evaluation of Inonotus obliquus using HPLC method with novel marker compounds
HPLC chromatograms of Inonotus obliquus under different elution conditions: (a) 5% B at 0 min, 99% B at 60 min, 99% B at 80 min; (b) 30% B at 0 min, 99% B at 60 min, 99% B at 80 min; (c) 60% B at 0 min, 99% B at 30 min, 99% B at 60 min, (d) 95% B for 30 min. S1: inotodiol; S2: 3β-hydroxylanosta-8,24-dien-21-al. HPLC conditions: column, HECTOR-M C18 (250 × 4.6 mm, 5 μm); flow rate, 1 mL/min; injection volume, 10 μL