@article{feng_liu_huang_wu_wei_li_meng_zhao_yang_2018,  title={Nonanoic Acid-Coated Magnetite Nanoparticles for Separation and Preconcentration of Lead and Copper in Tobacco Samples prior to Flame Atomic Absorption Spectrometry Determination},  volume={29},  ISSN={0103-5053},  url={https://doi.org/10.21577/0103-5053.20170120},  DOI={10.21577/0103-5053.20170120},  number={1},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Feng, Shouai and Liu, Hong and Huang, Jiangfeng and Wu, Jingjing and Wei, Kang and Li, Xiaolan and Meng, Dongling and Zhao, Jiao and Yang, Yaling},  year={2018},  month={Jan},  pages={125–132} }