[Qualitative and quantitative changes in the polycyclic aromatic hydrocarbons in cutting oils after their use].

Abstract

The quantitative and qualitative variations in the mixture of polycyclic aromatic hydrocarbons (PAH) present in different samples of a cutting oil, unused and after 3,6 and 9 months of use, were evaluated by means of gas-chromatography mass spectrometry. Nine of the identified hydrocarbons (phenanthrene, anthracene, fluoranthene, pyrene, benzo-a-anthracene… (More)

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