“…Compared with these methods, SPME has higher sensitivity, less time and solvent consumption. As a specific form of SPME, in-tube SPME [8,9] has been widely Article Related Abbreviations: Ace, acenaphthene; Acy, acenaphthylene; Ant, anthracene; DAD, diode array detector; FlA, fluoranthene; FLD, fluorescence detection; Flu, fluorene; Nap, naphthalene; PAHs, polycyclic aromatic hydrocarbons; Phe, phenanthrene; Pyr, pyrene; r, correlation coefficient used in various fields, like as pharmaceutical, biochemistry, food and environmental analysis and so on [10], that can get online quick extraction and sensitive analysis via combining with HPLC [11]. The extraction performance depends on the extraction coatings, and the development of efficient coatings is the most important for in-tube SPME.…”