Matches in SemOpenAlex for { <https://semopenalex.org/work/W199718584> ?p ?o ?g. }
- W199718584 abstract "Echinacea angustifolia and E. purpurea are commonly used in North America for their antibacterial effects. Flos Lonicerae, Radix Scutellaria and Fructus Forsythiae are traditional Chinese medicinal herbs commonly used for the treatment of complaints such as pneumonia, acute upper respiratory tract infection, and acute bronchitis. A reproducible, simple, and reliable rapid resolution liquid chromatographic (RRLC) method has been developed to analyze extracts of products formulated containing E. angustifolia, E. purpurea, Flos Lonicerae, Radix Scutellariae and Fructus Forsythiae simultaneously in one run in less than 6 minutes. The method uses a C18-HST column, a mobile phase consisting of 0.1% aqueous phosphoric acid solution and acetonitrile, and UV detection at 327 nm and 229 nm. A stability test was performed that revealed that chlorogenic acid is more stable in acidic pH, and hence it is best to keep the extract of E. augustifolia, E. purpurea, Flos Lonicerae, Radix Scutellariae and Fructus Forsythiae in mild acidic conditions at approximately pH 5." @default.
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- W199718584 date "2011-05-01" @default.
- W199718584 modified "2023-09-27" @default.
- W199718584 title "Simultaneous Quantification of Echinacea Species, Flos Lonicerae, Radix Scutellaria and Fructus Forsythiae Combinations by Rapid Resolution Liquid Chromatography" @default.
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- W199718584 doi "https://doi.org/10.1177/1934578x1100600514" @default.
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