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HPLC chromatogram of isolated AAs sample of Aristolochia bracteolata.
Condition: column, C18 (Varian® microsorb-MV 300–8 C18 250 × 4.6 mm), mobile phase, 1% acetic acid/methanol (40:60), temperature 20–25 °C, flow rate 1.0 ml/min, UV detection 250.
