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Prof. Dennis R. Short
Purdue University
From: forensic-science@yahoogroups.com
[mailto:forensic-science@yahoogroups.com] On Behalf Of proto957
Sent: Friday, February 24, 2012 8:46 AM
To: forensic-science@yahoogroups.com
Subject: [forensic-science] Copper and Zinc in inks
I've found various references to copper and zinc in inks, and how the
amounts of these metals in any samples, can help compare those samples. I
have a couple of questions related to this:
1) When, historically, did copper and zinc first begin appearing in inks?
2) Is the presence of these metals a result of the manufacturing process, or
in the use of the ink? I mean, is it from the ball in a pen rotating in it's
socket, or the use of a brass inkwell... or is it in the ink itself to begin
with?
3) Can anyone point me to a database of copper and zinc amounts in ink,
correlated to time (years, centuries) or geography (who use inks which might
have these metals)?
Thanks in advance for any help. Rich.
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