Simultaneous Quantitative Determination of Polyphenolic Compounds in Blumea balsamifera (Ai-Na-Xiang, Sembung) by High-Performance Liquid Chromatography with Photodiode Array Detector

Figure 4

MS spectrum (ESI⁻ for 1, Rutin; 2, Hyperoside; 3, Isoquercitrin; 4, 3,3′,5,7-Tetrahydroxy-4′-methoxyflavanone; 5, 3′,5,5′,7-Tetrahydroxyflavanone; 6, Quercetin; 7, 3,3′,4′,5-Tetrahydroxy-7-methoxyflavanone; 8, Chrysosplenol C; 9, Diosmetin; 10, Tamarixetin; 11, 3,5,7-Trihydroxy-3′,4′-dimethoxyflavone; 12, 3,3′,5-Trihydroxy-4′,7-dimethoxyflavanone; 13, Blumeatin; 14, Rhamnetin; 15, 3′,4′,5-Trihydroxy-3,7-dimethoxyflavone; 17, Ombuin; 18, 3,5-Dihydroxy-3′,4′,7-trimethoxyflavone; ESI⁺ for 16, Xanthoxylin).