- Click to select one congener & unselect all other choices
- <Ctrl> Click to select/unselect additional congeners
- <Shift> Click to select range of congeners and unselect all other ranges
- <Shift> <Ctrl> Click to select additional range of congeners
| DD | - Native Dioxins |
| DF | - Native Furans |
| MDD | - Labeled Dioxins |
| MDF | - Labeled Furans |
| MPB | - Labeled PCBs |
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