| PCB analyte | Structure | IUPAC nomenclature | Chemical formula | Molecular weight (g/mol) |
| PCB-18 | | 1,4-Dichloro-2-(2-chlorophenyl)benzene | C12H7Cl3 | 257.5 | PCB-28 | | 2, 4, 4′—Trichlorobiphenyl | C12H7Cl3 | 257.5 | PCB-31 | | 1,4-Dichloro-2-(4-chlorophenyl)benzene | C12H7Cl3 | 257.5 | PCB-44 | | 2,2′,3,5′—Tetrachlorobiphenyl | C12H6Cl4 | 291.99 | PCB-52 | | 1,4-Dichloro-2-(2,5-dichlorophenyl)benzene | C12H6Cl4 | 291.99 | PCB-101 | | 2, 2′,4,5,5′-Pentachlorobiphenyl | C12H5Cl5 | 326.43 | PCB-118 | | 2, 3′, 4, 4′,5 –Pentachlorobiphenyl (dioxin-like) | C12H5Cl5 | 326.43 | PCB-138 | | - 2,2′,3,4,4′,5′-hexachlorobiphenyl | C12H4Cl6 | 360.88 | PCB -149 | | 2,2′,3,4′,5′,6—Hexachlorobiphenyl | C12H4Cl6 | 360.88 | PCB-153 | | 2,2′,4,4′,5,5′-hexachlorobiphenyl (source: (https://www.chemspider.com) | C12H4Cl6 | 360.88 | PCB -170 | | 2,2′, 3,3′, 4,4′,5—Heptachlorobiphenyl | C12H3Cl7 | 395.32 | PCB -180 | | 2,2′, 3,4,4′,5,5′—Heptachlorobiphenyl | C12H3Cl7 | 395.32 | PCB-194 | | 2,2′,3,3′, 4,4′,5,5′-Octachlorobiphenyl | C12H2Cl8 | 429.77 | PCB-209 | | 2,2′,3,3′,4,4′,5,5′,6,6′—Decachlorobiphenyl | C12Cl10 | 498.66 |
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