Development of a Solid-phase Microextraction Method for Sampling of Polycyclic Aromatic Hydrocarbons in South China Sea

A in-situ sampling device based on solid phase microextraction(SPME) was modified and used for the analysis of 16 polycyclic aromatic hydrocarbons(PAHs),such as phenanthrene,fluoranthene,fluorene,pyrene and naphthalene,etc,in Daya Bay and Hailing Bay located in Pearl River Delta.Among the 16 PAHs,two-,three-and four-ring PAHs could be detected,while no five-and six-ring PAHs.The concentrations of phenanthrene,fluoranthene,pyrene and fluorene showed no significant differences with related data obtained from the literatures.However,the concentration of naphthalene obtained from the present method was lower than that from traditional method.This could be ascribed that the present method didn′t need use organic solvent to concentrate the sample,avoiding of the interference of organic solvent.