Oct 29, 2021 · Sep 28, 2021 · Leading Supplier of PTFE Syringe Filter,Welcome to Inquiry P M Medicinal & Aromatic Plants - Longdom C18 column (2.6 um, 150 x 2.1 mm, Phenomenex, Torrance, CA, USA), mobile phases and separation conditions were the same as in HPLC-PDA analysis with slight modification of gradient, injected volume was reduced to 2 µL and the flow rate of