| This latter hypothesis is very unlikely also because the emission spectrum of fluorene is almost completely insensitive to solvent polarity. |
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| Degradation of the polycyclic aromatic hydrocarbon fluorene is retarded in a Scots pine ectomycorrhizosphere. |
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| As can be seen from table 1, the two paint samples contain high amounts of anthracite, fluoranthrene and fluorene. |
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| The concentrations of the gas-phase PAHs anthracene, acenaphthene, fluorene, and phenanthrene distinguished the gas phase from urban and rural particulate phases. |
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| The first step of the project involves nitration of fluorene, a commercially available and relatively inexpensive starting material, using nitric acid in acetic acid. |
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