Pure Viticis Negundo Folium oil for candle and soap making wholesale diffuser essential oil new for reed burner diffusers

he invention relates to the field of vitex negundo linn volatile oil, and specifically relates to a preparation method of vitex negundo linn volatile oil. The preparation method is characterized by comprising the following steps: weighing 10g of vitex negundo linn powder in a 1000mL round-bottom flask; adding 300mL of distilled water to fully immerse a material; additionally taking 50mL of normal hexane in a 500mL flask; connecting a simultaneous distillation-extraction device, wherein one end of the material maintains a micro-boiling state at about 110+/-5 DEG C; after extraction, transferring an organic reagent to a triangular flask with a plug to obtain yellow volatile oil; as an aqueous phase and an organic phase are immiscible and are separated in a U-shaped tube and respectively flow back to the flasks on both sides, realizing the purposes of extracting, separating and enriching trace volatile and non-volatile components in a sample through a continuous and circular distillation and extraction process. By adopting the technical scheme, the extraction technology screened has the characteristics of high extraction rate and is simple to operate. The preparation method is used for preserving fresh lotus roots with excellent effect. The preparation method is conducive to improving the content of target matters.