@article{giné_patreze_silva_sarkis_kakazu_2008,  title={Sequential cloud point extraction of trace elements from biological samples and determination by inductively coupled plasma mass spectrometry},  volume={19},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532008000300014},  DOI={10.1590/S0103-50532008000300014},  number={3},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Giné, Maria Fernanda and Patreze, Aparecida F. and Silva, Edson L. and Sarkis, Jorge E. S. and Kakazu, Maurício H.},  year={2008},  pages={471–477} }