Objective:To compare the difference between Cortex Phellodendri Amurensis and Cortex Phellodendri Chinensis.Methods:TLC was used identify Berberine Hydrochloride and Palmatine Hydrochloride.HPLC was used to de- terminate the content of Berberine Hydrochloric.Results:Only in Cortex Phellodendri Amurensis were Pa...
The operation pressure of the HPLC is considerably higher than that of the traditional liquid chromatography. It lies around 50-350 bar. The difference between liquid chromatography and HPLC is that in liquid chromatography, the sample falls through the column under gravity whereas, in HPLC, the s...
Grüner Stern and L. serriola from France, respectively (Table 1). Statistically significant differences in TPC (one-way ANOVA, p < 0.05) between L. serriola and the two examined cultivars of stem lettuce were not found neither in 8 weeks old nor in 15 weeks old plants. Table 1. ...