TY - Front. Agric. China A1 - Qunbiao ZHOU, Yaxin SANG, Li WANG, Shuangshang JI, Jing YE, Xianghong WANG T1 - Determination of polychlorinated biphenyls by GC/MS with ultrasound-assisted extraction from shellfish Y1 - 2010-12-05 JF - Frontiers of Agriculture in China JO - Front. Agric. China SP - 489 EP - 493 VL - 4 IS - 4 UR - https://academic.hep.com.cn/fag N1 - 10.1007/s11703-010-1032-8 ER -