TY - SER AU - Zhao,Haixiang TI - Simultaneous determination of three residual barbiturates in pork using accelerated solvent extraction and gas chromatography-mass spectrometry N1 - YA2007 M05 D01 Sources - Journal of Chromatography B Sources - 840 (2) 2006 : 139-145 ISSN - 1570-0232 ER -