%0 Journal Article %T Ultra Preconcentration of Polycyclic Aromatic Hydrocarbons in Smoked Bacon by a Combination of SPE and DLLME %A Liu, Xiaofang %A Zhou, Shu %A Zhu, Quanfei %A Ye, Yong %A Chen, Huaixia %J Journal of Chromatographic Science %V 52 %N 8 %P 932-937 %@ 0021-9665 %D 2014-09-04 %I Oxford University Press %~ DeepDyve