METHODS Using six methods to extract volatile oil from Flos caryophylli and by comparing the rate of extraction and the content of eugenol in volatile oil, the best extracting technology was selected.

• 方法:采用6种不同方法提取丁香挥发油,以提取的挥发油体积及挥发油中丁香酚的含量为指标,筛选从丁香中提取挥发油的最佳方法。