US EPA

2179132 

Journal Article 

Adsorption of PCB's and DDT's on membrane filters--A new analysis method 

Kurtz, DA 

1977 

Yes 

Bulletin of Environmental Contamination and Toxicology
ISSN: 0007-4861
EISSN: 1432-0800 

17 

4 

391-398 

English 

405057 

WOS:A1977DE65000003 

A new adsorption method is described by which PCB mixtures, DDT isomers, and other chlorinated hydrocarbon residues can be efficiently separated from water sources. Aroclor 1242 and Aroclor 1254, as well as p,p'-DDT were efficiently adsorbed onto the surface of the adsorption medium, a membrane filter made from cellulose triacetate material. In contrast, desorption of these constituents from the filter was both inefficient and inconsistent. Recovery of the Aroclors was always greater and more consistent than recovery of p,p'-DDE, p,p'-DDT, p,p'-TDE, o,p'-DDT, and aldrin. The high degree of adsorption of organochlorine compounds exhibited by the cellulose triacetate membrane filters is of potential value for both analysis and purification. This type of filter might also be applicable to the study of air pollution problems.