Yes, that's the claim (which seems supported elsewhere in the thread). You are probably underestimating the magnitude of the effect, though. A single square of

Yes, that's the claim (which seems supported elsewhere in the thread). You are probably underestimating the magnitude of the effect, though. A single square of blotter paper weighs on the order of 10 mg; it holds a dose on the order of 50-100 micrograms, about 1% of the paper mass.