@article{malagutti_mazo_2003,  title={Determination of ranitidine in drugs using a mercury coated platinum ultramicroelectrode and hanging mercury dropping electrode},  volume={14},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532003000200015},  DOI={10.1590/S0103-50532003000200015},  number={2},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Malagutti, Andréa R. and Mazo, Luiz H.},  year={2003},  month={Mar},  pages={274–280} }