@article{articleda03f693,
title   = {Sequential cloud point extraction of trace elements from biological samples and determination by inductively coupled plasma mass spectrometry},
author = {Giné-Rosias, Maria Fernanda Georgina and Patreze, Aparecida de Fátima and Silva, E L and Sarkis, J E S and Kakazu, M H},
year = {2008},
doi = {10.1590/s0103-50532008000300014},
journal   = {Journal of the Brazilian Chemical Society}
}