@inproceedings{inproceedings9ef08917,
title   = {Ultrasound assisted extraction for cadmium, copper and lead determination in biological materials samples by electrothermal atomic absorption spectrometry},
author = {Lima, E C and Barbosa Júnior, F and Krug, Francisco José and Vale, M G R and Silva, M M},
year = {2000},
booktitle   = {Rio Symposium on Atomic Spectrometry}
}