@inproceedings{inproceedings28aa0093,
title   = {Simultaneous analysis of parabens in biological samples by packed sorbent microextraction and ultra-performance liquid chromatography-tandem mass spectrometry},
author = {Queiroz, Maria Eugênia Costa and Melo, Lidervan de Paula and Domingues, Diego S. and Jardim, Valeria C.},
year = {2013},
booktitle   = {Encontro Nacional de Cromatografia}
}