Yep. Lowest " Threshold of Detection" on record was from a study at FSU in 2005
Amyl Acetate was detected down to 1.09 parts per trillion.
That was from a giant Schnauzer�a dog not normally noted for its scenting ability. Another dog in the study, a Rottweiler ( also not noted for scenting) was measured down to 1.14ppt.
You can't even wrap your brain around that�.least wise I can't.
