cellulose diacetate

Luminescence of PAH (anthracene, phenanthrene, pyrene, fluoranthene, benzo(a)anthracene, chrysene, benzo(a)pyrene) in aqueous media and in the solid phase of cellulose diacetate is investigated. It is established that solid surface luminescence (SSL) analysis increases the detection sensitivity of PAH in water without extraction and preconcentration with organic solvents, an exception is chrysene. The spectral characteristics show SSL-method to be using for detection of indicator isomers pairs of PAH.

The ability of using cellulose diacetate (CDA) as matrix for luminescent determination of polycyclic aromatic hydrocarbons (PAH) in aqueous media was studied. PAH sorption was carried out on the example of pyrene from water solutions. Cellulose diacetate matrix was modified by anionic and cationic surfactants - sodium dodecylsulphate (SDS) and cetyltrimethylammonium bromide (CTAB). The comparative analysis of dependence of fluorescence intensity and polarity index of pyrene was carried out.