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<p>[QUOTE=&quot;BadThad, post: 2666312, member: 17261&quot;]Ran a quick experiment today on the FTIR-ATR. As I already knew, BZT produces a strong IR spectrum. I made a strong solution of BZT in methanol and let it produce a dry film on the ATR, this is what I got:</p><p><br /></p><p>[ATTACH=full]592653[/ATTACH] </p><p>As a control, I ran a RB Lincoln and nothing was obtained, basically just noise. Then I applied the BZT/methanol solution to the entire surface of the Lincoln and dried it using house air. It left a slightly sticky fiim on the surface so coverage was very good. The FTIR scan of the coin only revealed the two strongest IR bands at 1222 and 752 cm-1. Definitely not enough information to match to ANYTHING conclusively. It&#039;s my opinion that BZT residue on the coin surface is undectable on a coin surface by FTIR-ATR.[/QUOTE]</p><p><br /></p>

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