Akademska digitalna zbirka SLovenije - logo
E-resources
Peer reviewed Open access
  • Gas chromatography-mass spe...
    Jira, W; Ziegenhals, K; Speer, K

    Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment 25, Issue: 6
    Journal Article

    A gas chromatography-mass spectrometry (GC-MS) method was developed for the analysis of 15 polycyclic aromatic hydrocarbons (PAHs) highlighted as carcinogenic by the Scientific Committee on Food (SCF) plus benzocfluorine (recommended to be analysed by the Joint FAO/WHO Expert Committee on Food Additives (JECFA)) in fat-containing foods such as edible oils and smoked meat products. This method includes accelerated solvent extraction (ASE) and the highly automated clean-up steps gel permeation chromatography (GPC) and solid-phase extraction (SPE). Using a VF-17ms GC column, a good separation of benzobfluoranthene, benzojfluoranthene and benzokfluoranthene was achieved. Furthermore, the six methylchrysene isomers and the PAH compounds with a molecular weight of 302 Daltons in fat-containing foods attained a better chromatographic separation in comparison with a 5-ms column. The reliability of the analytical method for edible oils was demonstrated by the results from a proficiency test. Measurements with GC-high-resolution mass spectroscopy (HRMS) and gas chromatography-mass selective detection (GC-MSD) led to comparable results. A survey of the 16 PAHs in 22 smoked meat products showed concentrations in the range <0.01-19 micrograms kg-1. The median concentration for benzoapyrene was below 0.15 micrograms kg-1.