摘要
Objective:To establish a method of measuring the contents of gallic acid, brevifolin, corilagin, geraniin, ellagic acid and rutin in Phyllanthus urinaria L. simultaneously with fingerprint study for analysis. Methods:Phyllanthus urinaria L. was extracted by ultrasound with 50% methanol. Chromatographic separation was performed on a Phenonmenex Luna C18 (4.6 mm×250 mm, 5 μm). The mobile phase consisted of acetonitrile (A) and 0.1% phosphoric acid aqueous solution (B) with gradient elution. The flow rate was 1.0 ml/min. The column temperature was 25 ℃, and the injection volume was 10 μl. The detection wavelength was 270 nm. HPLC fingerprints of Phyllanthus urinaria L. from different habitats was established. PCA and OPLS-DA were used to analyze the differences in chemical components of different habitats. Results:Gallic acid, brevifolin, corilagin, geraniin, ellagic acid and rutin showed good linearity at 0.042 8-0.641 6, 0.033 4-0.501 4, 0.142 2-2.133 1, 0.383 1-5.746 5, 0.063 1-0.946 2 and 0.019 2-0.287 8 μg, respectively. The average recovery rate of them was 103.65%, 96.39%, 101.85%, 95.04%, 98.79% and 98.33%, respectively. The HPLC fingerprints of different habitats contained 14 characteristic common peaks, and six compounds characteristic peaks were identified. PCA analysis showed that the chemical components of Phyllanthus urinaria L. from different habitats were different. Geraniin, ellagic acid and corilagin were screened by OPLS-DA. Conclusions:The method is efficient, accurate and sensitive, which can be used to measure the six components in Phyllanthus urinaria L.. The established HPLC fingerprint of different habitats combined with the measrurement method of six components can be used for the quality control and evaluation of Phyllanthus urinaria L..