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Author information: An optimized analytical method was developed for the simultaneous analysis of 90 pesticides, 16 polycyclic aromatic hydrocarbons, and 22 polychlorinated biphenyls.

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The method was based on quick, easy, cheap, effective, rugged, and safe QuEChERS extraction using acetonitrile followed by a dispersive solid-phase extraction cleanup using primary-secondary amine and octadecyl C The extract obtained was concentrated by evaporation and then reconstituted with acetonitrile to prepare it for chromatographic analysis by liquid chromatography-triple-quadrupole tandem mass spectrometry and gas anal tandem mass spectrometry, which was preceded by a preconcentration step using solid-phase microextraction with appropriate fibers.

The honey of the two extraction steps ensured efficient erotic dildo gif cleanup.

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The use of the two analytical instruments allowed the analysis of a large number of pollutants with honey high reliability rate. The correlation coefficient R 2 anal was higher than 0.

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Finally, the method was tested for its efficiency on real samples by the analysis of three honey samples in which seven pesticides and nine polycyclic aromatic hydrocarbons were determined.