@incollection{Ibrahim19, author = {Hassan Al-Haj Ibrahim}, title = {Introductory Chapter: Fractionation}, booktitle = {Fractionation}, publisher = {IntechOpen}, address = {Rijeka}, year = {2019}, editor = {Hassan Al- Haj Ibrahim}, chapter = {1}, doi = {10.5772/intechopen.78050}, url = {https://doi.org/10.5772/intechopen.78050} }