news at hgmp.mrc.ac.uk news at hgmp.mrc.ac.uk
Mon Apr 9 05:46:15 EST 2001

You can buy light sources for some scanners that will provide a light from
the top but they can be expensive. These are generally used to scan slides
but will work for film as well. You could use an array of mirrors to reflect
light back down into the scanner, but in my experience this does not work
particularly well.

Your best bet is to invest in a slide scanning attachment for your scanner,
if there is one, or get yourself a brand new state of the art scanner which
includes the slide/film scanner with light source from top.

Best of Luck

David A C Jones

<Your Name [mailto:cricket at proaxis.com]> wrote in message
news:9a9n99$e5$1 at mercury.hgmp.mrc.ac.uk...
> Does anyone know how to test for porphyria fluorescence in urine or
> blood with a black light bulb?

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