| abstract |
The invention relates to a formazan volatile oil self-microemulsion, which is characterized in that it is made of the following raw materials by weight: 10 parts of ethyl oleate, Tween-2081, 9 parts of ethanol, and 11% of volatile oil of Forsythia suspensa 25 copies. The invention also provides a preparation method of the volatile oil of Forsythia suspensa from the microemulsion, and the volatile oil of Forsythia suspensa produced by the invention is self-microemulsion, the appearance is clear and transparent, and the uniform pale blue opalescence, the particle size is less than 100 nm, and has good stability. |