@article{abate_santos_colombo_masini_2006,  title={Sequential injection analysis as a tool for on-line monitoring the sorption of fulvic acid onto modified vermiculite},  volume={17},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532006000300009},  DOI={10.1590/S0103-50532006000300009},  number={3},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Abate, Gilberto and Santos, Luciana B. O. dos and Colombo, Sandro M. and Masini, Jorge C.},  year={2006},  month={May},  pages={491–496} }