Szukana fraza: [Abstract = The PAHs analysis included\: sample preparation, quantitative and qualitative chromatographic determination, it was also carried out using gas chromatography coupled with mass spectrometer. Total concentration of PAHs in the effluent eight coke before oxidation was 23 \?g\/dm3. The largest loss of hydrocarbons examined, reaching 62%, was noted at the dose of 50 mg\/dm3of the oxidant.]

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