Summary
A selective and sensitive HPLC method for the determination of Benzo[a]pyrene (B[a]p) in oil fractions by means of column switching is described. The diluted oil samples were injected directly onto a silica column with isooctane as eluent. After fast elution of the main part of the sample matrix, the B[a]p containing fraction was transferred on-line to a dinitro-aryl-modified silica column for final separation with isooctane/tetrahydrofuran. A detection limit of 50 ppt B[a]p was found when using fluorescence detection.
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Dedicated to Professor Leslie S. Ettre on the occasion of his 70th birthday.
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Lamprecht, G., Huber, J.F.K. Direct determination of Benzo[a]pyrene in oil distillates by on-line two-dimensional HPLC with column switching. Chromatographia 34, 376–380 (1992). https://doi.org/10.1007/BF02268371
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DOI: https://doi.org/10.1007/BF02268371