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A procedure for qualitative and quantitative analysis of anthracene and phenanthrene in diesel particulates by means of collisionally activated decomposition mass spectrometry, without any previous extraction, is described. While the absolute amount of these two polycyclic aromatic hydrocarbons has been obtained by collisional experiments on their molecular species and by using 2,6-diisopropylphenol as internal standard, the molar ratio between anthracene and phenanthrene has been determined with the aid of charge-stripping spectra.
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Doretti et al. (1986) studied this question.
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