@article{gomes_d'andrea_mendes_siqueira_2010,  title={Determination of benzene, toluene and N-hexane in urine and blood by headspace solid-phase microextration/gas-chromatography for the biomonitoring of occupational exposure},  volume={21},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532010000100018},  DOI={10.1590/S0103-50532010000100018},  number={1},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Gomes, Paulo C. F. de Lima and D'Andrea, Éverton D. and Mendes, Camila B. and Siqueira, Maria Elisa P. B. de},  year={2010},  pages={119–126} }