HPLC determination of PAHs in mineral oils used as dispersing agents for herbicides |
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| Authors: | Grzegorz Bazylak and Joanna Maslowska |
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| Institution: | (1) Bioinorganic and Analytical Chemistry Division, Institute of Fundamental Food Chemistry, Technical University of  ód , B. Stefanowskiego 4/10, PL-90924 ód, Poland |
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| Abstract: | Summary The representative refined mineral oil samples, crude petroleum straightrun distillates, potentially used in the manufacture of crop protection products were analysed by isocratic and gradient high performance liquid chromatography (HPLC) to investigate their trace polycyclic aromatic hydrocarbon (PAH) content. Liquid-liquid extraction followed by size-exclusion column chromatography was employed to isolate the fraction containing PAHs with more than two fused rings. The identity of individual PAHs was confirmed by comparing their UV and fluorimetric detector signals with those recorded from reference standards. The level of extracted PAHs in the oil samples are discussed with respect to their physical and chemical properties. |
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