Analysis of polycyclic aromatic hydrocarbons by sensitized room temperature phosphorescence |
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| Authors: | Email author" target="_blank">I?GoryachevaEmail author S?Shtykov G?Melnikov E?Fedorenko |
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| Institution: | (1) Chemistry Department, Saratov State University, 155 Moskovskaya St., 410026, Saratov, Russia,;(2) Department of Applied Physics, Saratov State Technical University, 77 Polytekhnicheskaya St., 410054, Saratov, Russia, |
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| Abstract: | Direct and selective simultaneous determination of several polycyclic aromatic hydrocarbons by sensitized room temperature
phosphorescence in sodium dodecylsulphate micellar solutions was studied. This approach improved, for example, the selectivity
factor in determining pyrene in the presence of fluoranthene by a factor of 350, and determined benza]anthracene and anthracene
in the presence of pyrene with the selectivity factors as high as 200–220. Triphaflavine and acridine orange as triplet energy
donors, thallium (I) nitrate as a heavy atom, and sodium sulphite were used as scavengers of oxygen. A comparative study of
linear concentration ranges, detection limits and selectivity factors is presented here for pyrene, benza]anthracene and
anthracene determination by fluorescence, phosphorescence and sensitized phosphorescence.
Electronic Publication |
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| Keywords: | Pollutants Polycyclic aromatic hydrocarbons determination Phosphorimetry |
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