Oct 01, 2020 · HPLC analysis was completed on an Aijiren HPLC system coupled with a photodiode array (PDA) detector (Aijiren Technologies, Memphis, TN) using an Aijiren Lab Poroshell 120 EC-C 18 column (250 mm × 4.6 mm, i.d. with 4 μm particle diameter, Aijiren Technologies, Memphis, TN).