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William Scott wrote:
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I thought they were thinking of litmus paper for the colo(u)r scheme. If
I put my hand in bucket of concentrated sulphuric acid ...
it turns red, which proofs the universal colour scheme and fits the
litmus test :-)
So in theory you could safe the pH paper and use your fingers instead,
the disadavntage with this method is only that you don't get a colour
conversion when probing basic samples.
Juergen
--
Jürgen Bosch
University of Washington
Dept. of Biochemistry, K-426
1705 NE Pacific Street
Seattle, WA 98195
Box 357742
Phone: +1-206-616-4510
FAX: +1-206-685-7002
