@article{bergamini_santos_zanoni_2009,  title={Screen-printed carbon electrode modified with poly-L-histidine applied to gold(III) determination},  volume={20},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532009000100017},  DOI={10.1590/S0103-50532009000100017},  number={1},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Bergamini, Márcio F. and Santos, Daniela P. and Zanoni, Maria Valnice B.},  year={2009},  pages={100–106} }