A volatile liquid distilled from petroleum, consisting of a mixture of hydrocarbons.
 Example sentencesExamples
-  After filtration and methanol evaporation under reduced atmospheric pressure, the sample was adjusted to pH 8.0 and partitioned once with equal volume of petroleum ether.
 -  Cellulose thimbles were filled with ~ 10 g of dried liver homogenate and subsequently washed with petroleum ether in a modified Soxhlet apparatus to extract lipids.
 -  Axiferous extracts were thoroughly mixed three times with two volumes of petroleum ether to remove lipids prior to HPLC analysis.
 -  Lipid was extracted from the yolk using Soxhlet extraction with petroleum ether as a solvent.
 -  Recrystallization was carried out with petroleum ether, and the crystals were stored at - 70 [degrees] C.