Determination of Polyphenol Components of Korean Prostrate Spurge (Euphorbia supina) by Using Liquid Chromatography—Tandem Mass Spectrometry: Overall Contribution to Antioxidant Activity

Figure 1

Chromatograms of the Euphorbia supina polyphenol mixture obtained using high-performance liquid chromatography:1, gallic acid; 2, protocatechuic acid; 3, nodakenin; 4, quercetin 3-O-hexoside; 5, quercetin 3-O-pentoside; 6, kaempferol 3-O-hexoside; 7, kaempferol 3-O-pentoside; 8, quercetin; 9, kaempferol. Detection wavelength: 254 nm.