Preparation of Al-doped mesoporous crystalline material-41 as fiber coating material for headspace solid-phase microextraction of polycyclic aromatic hydrocarbons from human urine.

•The Al-doped mesoporous crystalline material-41 (Al-MCM-41) mesoporous material was prepared.•Al-MCM-41 as the new fiber coating material of solid-phase microextraction (SPME).•Headspace SPME was developed to extract polycyclic aromatic hydrocarbons (PAHs).•Five PAHs in human urine were extracted and preconcentrated by headspace SPME.•Sensitive detection of PAHs with GC-FID using Al-MCM-41 as coating material of SPME.