@article{hassan_izadi_homayonnejad_2013,  title={Application of low density homogeneous liquid-liquid extraction combined with GC for TPH and PAH determination in semi-micro solid samples},  volume={24},  ISSN={0103-5053},  url={https://doi.org/10.5935/0103-5053.20130080},  DOI={10.5935/0103-5053.20130080},  number={4},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Hassan, Jalal and Izadi, Mohadeseh and Homayonnejad, Soma},  year={2013},  month={Apr},  pages={639–644} }