[a confused chiral girl]

Halo,

Why is Ether/Hexane a popular solvent mixture used for extractions, what does it extract from a homogenised sample?

Also, what is the difference in extracting with 10% ether/hexane and then 95% ether/hexane?

Thank u in advance for any ideas 

[JGK]

It will extract lipids

[a confused chiral girl]

why can't you use just hexane to extract lipids since it is a non-polar solvent? why need a mixture of ether and hexane?

also, what is the purpose behind increasing the ratio of ether in hexane? to extract more polar compounds with a greater amount of ether present, but why still need like ~8% hexane in the mixture?