||Analytical methods for by-product PCBs, preliminary validation and interim methods.
Erickson, Mitchell D. ;
Stanley, John S. ;
Radolovich, Gil ;
Turman, Kay ;
||Midwest Research Institute (Kansas City, Mo.)
|| U.S.E.P.A. Office of Toxic Substances,
||EPA-560/5-82-006; EPA-68-01-5915; MRI-4901-A(51)
Chemical analysis ;
Water analysis ;
Gas analysis ;
Air pollution ;
Water pollution ;
Gas chromatography ;
Mass spectroscopy ;
Polychlorinated biphenyls ;
Air pollution detection ;
Water pollution detection ;
||OCSPP Chemical Library/Washington,DC
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||234 unnumbered pages graphs, tbls
This document presents proposed analytical methods for analysis of by-products PCBs in commercial products, product waste streams, wastewaters, and air. The analytical method for commercial products and product waste streams consist of a flexible approach for extraction and cleanup of particular matrices. The 13C-labeled PCB surrogates are added as part of a strong quality assurance program to determine levels of recovery. The wastewater method is based on EPA Methods 608 and 625 with revisions to include use of the 13C-labeled PCB surrogates. The air method is a revision of a proposed EPA method for the collection and analysis of PCBs in air and flue gas emissions. Capillary or packed column gas chromatography/electron impact ionization mass spectrometry is proposed as the primary instrumental method. Response factors and retention times of 77 PCB congeners relative to tetrachlorobiphenyl-d6 are presented in addition to statistical analysis to project validity of the data and extrapolation of relative response factors to all 209 possible congeners. Preliminary studies using the 13C-labeled surrogates to validate specific cleanup procedures and to analyze several commercial products and product wastes indicate that the proposed analytical methods are both feasible and practical.