@article{sousa_oliveira_alves_andrade_2009,  title={A semi-continuous analyzer for the fluorimetric determination of atmospheric formaldehyde},  volume={20},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532009000200010},  DOI={10.1590/S0103-50532009000200010},  number={2},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Sousa, Eliane Teixeira and Oliveira, Fabio Santos de and Alves, Arnaldo Cardoso and Andrade, Jailson B. de},  year={2009},  pages={259–265} }