“Chloroform Extracts Most Volatile Compounds from Industrially Produced Immortelle Hydrosol”

https://pubmed.ncbi.nlm.nih.gov/38116850

This study found that chloroform is the most efficient solvent for extracting volatile compounds from industrially produced immortelle hydrosol, yielding 2447.0 mg/L, with a portion of essential oil compounds still present even after ten extractions.