megalomania
June 22nd, 2003, 02:32 PM
Metal
Frequent Poster
Posts: 137
From: I'm everywhere.
Registered: NOV 2000
posted 07-06-2001 10:01 PM
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I just finished watching a show on US currency and in it they stated that whenever the Secret Service finds a counterfeit bill they place it in a solution that reacts with amino acids on the bill that when heated shows all the fingerprints on it. Does anybody know what chemical this is, and if it works on all types of paper or only on the kind they print bills on?
c0deblue
Frequent Poster
Posts: 229
From:
Registered: JAN 2001
posted 07-07-2001 12:43 AM
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I believe Ninhydrin is the one that reacts with amino acids, but normally a print examination would be done using most, if not all of the tools available - iodine fuming, silver nitrate, cyanoacrylate, excimer laser fluorometry, etc.
Frequent Poster
Posts: 137
From: I'm everywhere.
Registered: NOV 2000
posted 07-06-2001 10:01 PM
--------------------------------------------------------------------------------
I just finished watching a show on US currency and in it they stated that whenever the Secret Service finds a counterfeit bill they place it in a solution that reacts with amino acids on the bill that when heated shows all the fingerprints on it. Does anybody know what chemical this is, and if it works on all types of paper or only on the kind they print bills on?
c0deblue
Frequent Poster
Posts: 229
From:
Registered: JAN 2001
posted 07-07-2001 12:43 AM
--------------------------------------------------------------------------------
I believe Ninhydrin is the one that reacts with amino acids, but normally a print examination would be done using most, if not all of the tools available - iodine fuming, silver nitrate, cyanoacrylate, excimer laser fluorometry, etc.