@article{articlebbf52f60,
title   = {The chemistry of beverages for high school students: a project on extraction and analysis of caffeine from guaraná powder},
author = {El Seoud, Omar A and Novaki, Luzia Peres and Possidonio, Shirley and Chinelatto, Ana Maria and Silva, Maria J. L. d’Almeida e and Brotero, Paula P},
year = {2018},
doi = {10.5923/j.jlce.20180601.03},
journal   = {Journal of Laboratory Chemical Education}
}