@article{espanhol-soares_silva_gimenes_silva_2020,  title={A Selective Gas Chromatography-Selected Ion Monitoring Mass Spectrometry (GC-MS/SIM) Method to Determine Polychlorinated Biphenyls in Fuller’s Earth},  volume={31},  ISSN={0103-5053},  url={https://doi.org/10.21577/0103-5053.20190227},  DOI={10.21577/0103-5053.20190227},  number={3},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Espanhol-Soares, Melina and Silva, Milady R. A. and Gimenes, Rossano and Silva, Flávio S.},  year={2020},  month={Mar},  pages={619–626} }