@article{silveira_merib_martendal_carasek_2012,  title={Extraction and on-fiber derivatization of chlorophenols in leather by internally cooled solid phase microextraction},  volume={23},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532012001200012},  DOI={10.1590/S0103-50532012001200012},  number={12},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Silveira, Cristine D. de Souza and Merib, Josias and Martendal, Edmar and Carasek, Eduardo},  year={2012},  month={Dec},  pages={2232–2236} }