Extractable organic compounds polyurethane foam

Rosel I, A., Gomez-Behnehon, J.L, and Grimalt, J.O., Gas Chromatographic-Mass Spectrometric Analysis of Urban-Related Aquatic and Airborne Volatile Organic Compounds Study of the Extracts Obtained by Water Closed-Loop Stripping and Ah Adsorption with Charcoal and Polyurethane Foam, Journal of Chromatography. Biomedical Applications, Vol. 562, p 493-506. 1991. 

Gesser et al. initiated the application of polyurethane foam for the extraction of organic contaminants from water. Since then, several published investigations have described the application of foams as extractors for chlorinated organic compounds, polycyclic aromatic hydrocarbons (PAHs), and other organics. 

El Shahawi et al. studied the use of polyurethane for the extraction of pesticides and similar compounds from water. In a 1993 paper, tliey reported investigations of the extraction of Dursban, Karphos and Dyfonate by activated charcoal and a polyether polyurethane foam. The first part of the study focused on isotherms. Weighed portions of carbon and polyurethane were placed in standard solutions of the pesticides and after a period of soaking and agitation, the concentrations of organics in the supernatant solution and in the extractant were measured. Table 4.3 summarizes their data. 

Bidleman TF (1988) Atmospheric process wet and dry deposition of organic compounds are controlled by their vapor-particle partitioning. Environ Sci Technol 22 361-367 Bjorklund E, Bowadt S, Nilsson T, Mathiasson L (1999) Pressurized fluid extraction of polychlorinated biphenyls in solid environmental samples. J Chromatogr A 836 285-293 Braun T, Navratil JD, Farag AB (1986) Polyurethane foam sorbents in separation science. CRC Press, Boca Raton... 

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