Apr 01, 2021 · The resulting filtrate was analyzed using HPLC ( II LC System, Aijiren Technologies, Santa Clara, CA) at specified parameters (Table 5, Step 6 – Fig. 3). Aijiren Zorbax 3.5 μm SB-C18 4.6 × 75 mm column (Part #866953-902, Santa Clara, CA, United States) was used in the HPLC analysis.