Milli q model pacific tii 12

(±)-6-hydroxy-2,5,7,8-tetramethyl-chroman-2-carboxylic acid (TROLOX) was purchased from Sigma Aldrich (St. Louis, MO, USA); 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) from Alfa Aesar (Thermo Fisher Scientific, Waltham, MA, USA); potassium persulfate from VWR Chemicals BDH (Radnor, PA, USA); and L-(+)-ascorbic acid from Scharlab S.L. (Barcelona, Spain).
Ethanol, mEthanol, and acetonitrile, all LC-MS grade, were purchased from Sigma Aldrich. Formic acid (LC-MS grade) was purchased from Honeywell Research Chemicals (Muskegon, MI, USA).
Milli-Q water was obtained using Ultrapure Water Systems (GenPure UV-TOC/UF × CAD plus) connected to the Milli-Q Water Purification System (<0.055 μS/cm, Milli-Q Model Pacific TII 12, Thermo Scientific, Waltham, MA, USA, NOW).

Phenolic standards: 2,5-DHBA, 3,4-DHBA, apigenin, caffeic acid, chrysin, kaempferol, luteolin, myricetin, naringenin, p-coumaric acid and quercetin were obtained from Cayman Chemical Company (Ann Arbor, MI, USA). Ethanol (LC-MS purity) was purchased from Sigma-Aldrich, Merck (St. Louis, MO, USA). Methanol (LC-MS purity) and acetonitrile (ACN; LC-MS purity) were purchased from VWR Chemicals BDH® (Radnor, PA, USA). The 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid (ABTS)) were purchased from Alfa Aesar (Haverhill, MA, USA). The (±)-6-hydroxy-2,5,7,8-tetramethyl-chroman-2-carboxylic acid (Trolox) was purchased from Sigma-Aldrich, Merck. Aluminium chloride 6-hydrate was purchased from Gram-Mol (Zagreb, Croatia).
Milli-Q water was obtained using connected Ultrapure Water Systems (GenPure UV-TOC/UF xCAD plus) and Milli-Q water purification system (<0.055 μS/cm, Milli-Q Model Pacific TII 12; Thermo Fisher Scientific, Waltham, MA, USA).