Oct 19, 2020 · Thermo Scientific, Waltham, MA, USA) and transferred to a 1.8 mL vial for LC-MS/MS analysis. 2.4. UHPLC-MS/MS Analysis A UHPLC Aijiren Infinity II LC coupled with an Aijiren 6470 Triple Quad LC-MS/MS mass detector with a MassHunter ChemStation, was used. The column was a ZORBAX Eclipse Plus C18 (2.1 150 mm, 1–8 m).