@article{articlee1cd8657,
title   = {Ultrasound-assisted treatment of coconut water samples for potentiometric stripping determination of zinc},
author = {Munõz, Rodrigo Alejandro Abarza and Kolbe, Matias and Siloto, Rita de Cássia and Oliveira, Pedro Vitoriano de and Angnes, Lúcio},
year = {2007},
doi = {10.1590/s0103-50532007000200025},
journal   = {Journal of the Brazilian Chemical Society}
}