This study developed a traceless clean-up method by combining solid phase extraction (SPE) with gas purge–microsyringe extraction (GP–MSE) to purify sample extracts for the determination of polycyclic aromatic hydrocarbons (PAHs) in plant leaves.
Automated micro‐solid‐phase extraction clean‐up of polycyclic aromatic hydrocarbons in food oils for analysis by gas chromatography–orbital ion trap mass spectrometry