TABLE 1.
Molecular Productsa Identified in Solvent Extracts by GC-MSD Analysis
| adsorbate | solvent
|
||||
|---|---|---|---|---|---|
| TOL | TBB | MEA | IPA | DCM | |
| phenol | phenol (trace) | phenol (trace) | phenol; dibenzofuran; 2-phenoxyphenol | phenol; dibenzofuran; 2-phenoxyphenol; dibenzo-p-dioxin | phenol; dibenzofuran |
| 2-MCP | 2-MCP (trace) | 2-MCP (trace) | phenol; 2-MCP; dibenzo-p-dioxin; 2-chlorodibenzo-p-dioxin | 2-MCP; phenol; dibenzo-p-dioxin; 2-chlorodibenzo-p-dioxin; 2,8-dichlorodibenzofuran; 2,4′-dichloro-5-hydroxydiphenyl ether; 1,2-DCBz | 2-MCP |
| MCBz | none | none | 1,2-DCBz; MCBz; 2-MCP; phenol; 2-chlorodiphenyl ether | MCBz; 2-chlorodiphenyl ether | MCBz; 1,2-DCBz; dibenzofuran |
| 1,2-DCBz | 1,2-DCBz (trace) | none | MCBz; 2-MCP; 1,2-DCBz | MCBz; 1,2-DCBz | 1,2-DCBz; 2-MCP; 1-chloronaphthalene; CT |
| CT | CT (trace) | none | o-benzoquinone; CT; phenol; 1,2-DCBz; 2-phenoxyphenol | CT; phenol; 2- dibenzofuran; 2-phenoxyphenol | CT; phenol |
| HQ | none | none | p-benzoquinone | p-benzoquinone | p-benzoquinone |
a
Only semivolatile products from reactions of EPFRs are included in the table. Other products, primarily lower molecular weight volatile species resulting from reactions of solvent radicals, were observed but were not fully identifiable or quantifiable with the HP-5MS capillary column.