[redgolum]

I just wonder how these machines could detect, for example, Hydrogen Peroxide or Perchlorate. Are they that good?

Both are in a lot of consumer products. The issue isn't the components, but the concentration.

[Victor]

"....The issue isn't the components, but the concentration...."

Right, so the question is can these machines detect volumes of anything in high concentration....and identify them?

I would be very impressed....I mean, obvious explosives (C-4, Nitro) would be a given. What about H2O2 in high concentration?

Would a flag go up?