@article{rosa_oreste_bönemann_rodrigues_vendruscolo_moreira_ribeiro_nunes_2016,  title={Evaluation of the Use of a Reflux System for Sample Preparation of Xanthan Gum and Subsequent Determination of Ca, Cu, K, Mg, Na and Zn by Atomic Spectrometry Techniques},  volume={27},  ISSN={0103-5053},  url={https://doi.org/10.5935/0103-5053.20150346},  DOI={10.5935/0103-5053.20150346},  number={5},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Rosa, Michele B. da and Oreste, Eliézer Q. and Bönemann, Daísa H. and Rodrigues, Amanda A. and Vendruscolo, Claire T. and Moreira, Angelita S. and Ribeiro, Anderson S. and Nunes, Adriane M.},  year={2016},  month={May},  pages={919–924} }