%0 Journal Article %T Simultaneous Determination of Hormonal Residues in Treated Waters Using Ultrahigh Performance Liquid Chromatography-Tandem Mass Spectrometry %A Rayco Guedes-Alonso %A Zoraida Sosa-Ferrera %A Jos¨¦ Juan Santana-Rodr¨ªguez %J Journal of Analytical Methods in Chemistry %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/210653 %U http://dx.doi.org/10.1155/2013/210653