Luteolin 7 o glucoside

Trolox^®, α-tocopherol, butylated hydroxytoluene (BHT), 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 2,2′-azobis(2-amidinopropane) dihydrochloride (AAPH), fluorescein, sodium persulfate, sodium acetate, n-tetradecane (≥99%), quercetin-3-O-glucoside (≥90%), rosmarinic acid (≥97%), naringenin (≥95%), apigenin (≥95%), eupatilin (≥98%), ursolic acid (≥90%), rutin (≥94%), (E)-β-caryophyllene (≥98.5%), α-humulene (≥96%), (2E, 6Z)-farnesol (≥96%), benzyl benzoate (≥99%), and benzyl salicylate (≥99%) were acquired from Sigma-Aldrich (St. Louis, MO, USA). Dipotassium phosphate was obtained from J.T. Baker (Phillipsburg, NJ, USA). Luteolin-7-O-glucoside (≥98%), luteolin-7-O-glucuronide (≥98%), cirsimaritin (≥98%), acacetin (≥98%), scopoletin (≥98%), and salvigenin (≥98%) were acquired from ChemFaces (Wuhan, China). Vitexin (≥95%) was obtained from Phytolab (Vestenbergsgreuth, Germany). Luteolin (≥98%) was purchased from Chemcruz (Santa Cruz Biotech., Dallas, TX, USA). The mixture of n-alkanes C₈-C₂₅ was obtained from AccuStandard, Inc. (New Haven, CT, USA). Helium, air, hydrogen, and nitrogen (99.995%) for GC analysis were purchased from Messer (Bucaramanga, Colombia). Ethanol (96%) was acquired from Suquin S.A.S. (Bucaramanga, Colombia). Type I water (18.2 MΩ cm) was produced using a Millipore Direct-QTM (Merck, Darmstadt, Germany) purification system.