Determination of Polycyclic Aromatic Hydrocarbons in Soils and Bottom Sediments by Gas Chromatography-Mass Spectrometry with QuEChERS Sample Preparation

The work is dedicated to the determination of polyaromatic hydrocarbons (PAHs) in soils and bottom sediments by gas chromatography-mass spectrometry using sample preparation with the extraction of analytes into a solvent and the simultaneous purification of the extracts by dispersive solid-phase extraction (QuEChERS). The test samples were samples of sand, loamy soil, and silty bottom sediments, and 20 PAHs were used as analytes. To minimize matrix effects, sample preparation conditions were optimized, and the effect of ultrasound on the extraction of analytes was studied. The recovery of PAHs from sand and silty bottom sediments varied within 80-105%, and from loamy soils, it was 60-99%. PAHs were identified and quantified by gas chromatography-mass spectrometry with detection in the selected ion monitoring mode. The QuEChERS sample preparation contributes to a prolonged life of the equipment while maintaining the sensitivity of analyte detection. The procedure was tested using a soil sample collected at the territory of the Taman Bulk Cargo Terminal (Russia).
Author(s): Z. A. Temerdashev [sup.1], T. N. Musorina [sup.1], S. K. Ovsepyan [sup.1], I. G. Korpakova [sup.1] Author Affiliations: (1) grid.26083.3f, 0000 0000 9000 3133, Kuban State University, , 350040, [...]