TY - SER AU - Llorca-Porcel,Julio TI - Analysis of chlorophenols, bisphenol-A, 4-tert-octylphenol and 4-nonylphenols in soil by means of ultrasonic solvent extraction and stir bar sorptive extraction with in situ derivatisation N1 - YA2010 M01 ISSN - 0021-9673 Sources - Journal of Chromatography A Sources - 1216 (32) 2009 : 5955-5961 ER -