@article{melo_valentim_goulart_abreu_2008,  title={Adsorption studies of trifluralin on chitosan and its voltammetric determination on a modified chitosan glassy carbon electrode},  volume={19},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532008000400014},  DOI={10.1590/S0103-50532008000400014},  number={4},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Melo, Acácia Maria dos Santos and Valentim, Iara Barros and Goulart, Marilia O. F. and Abreu, Fabiane Caxico de},  year={2008},  pages={704–710} }