Determination of polycyclic aromatic hydrocarbons in water samples by hollow fiber extraction coupled with GC-MS

Abstract

An octadecyl silica hollow fiber (OSHF) was prepared by a template method. The characteristics of the OSHF were evaluated by scanning electron microscopy, elemental analysis and a pore size analyzer. It was an ideal material for solid phase microextraction. The performance of it was thus studied by extracting polycyclic aromatic hydrocarbons (PAHs) in water samples. The results demonstrated that under the optimal extraction conditions, the linearities were 0.6–60, 1–60 and 2–60 ng mL⁻¹ for different PAHs with all regression coefficients higher than 0.976. The limits of detection were in the range of 31.5 to 97.9 pg mL⁻¹ for these analytes.