Zhongguo Zhongyao Zazhi 1994-Sep
[Determination of yuanhuacine in Daphne genkwa Sieb. et Zucc. by HPLC].
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Separated on phenox RP18 column with a mobile phase of methyl alcohol-water (82:18) and detected at wavelength 232nm, yuanhuacine has shown a good linearity in the range from 7.6 x 10(-3) to 0.76 microgram. The recovery is 99.56% with RSD 3.61% (n = 9). The content of yuanhuacine in Daphne genkwa is 0.00848%.