Development of micro-solid phase extraction with titanate nanotube array modified by cetyltrimethylammonium bromide for sensitive determination of polycyclic aromatic hydrocarbons from environmental water samples

► Develop a new micro-solid phase equilibrium extraction (μ-SPE) method with TiO2 nanotube arrays modified with CTAB. ► Provide a new monitoring technique for PAHs with a small amount of effectiveTiO2 nanotubes arrays. ► Demonstrate good adsorption and the applicability of TiO2 nanotube arrays modified with CTAB.