TY - SER AU - Shi,Xixhi TI - Molecularly imprinted polymer microspheres for solid-phase extraction of chloramphenicol residues in foods N1 - YA2008 M02 D01 Sources - Journal of Chromatography B Sources - 850 (1-2) 2007 : 24-30 ISSN - 1570-0232 ER -