Table III.

Recovery of major organic fractions from 1 g of DEP

FractionElution SolventAmount (mg)Recovery (%)a
AliphaticHexane23523.5
AromaticHexane/methylene chloride (3/2, v/v)10510.5
PolarMethylene chloride/methanol (1/1, v/v)10010.0
Total44044.0
  • a The amount of asphaltene from 1 g of DEP = 289.7 mg, which represents 29% of particle mass.