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I have about half a box of Fisher pre-cleaned slides dated 2005 that I recently re-discovered. The slides all have a coating of some waxy white stuff on them… what can this be? I remember when using them before that I always had to clean these "pre-cleaned" slides, but I don't remember this white stuff all over them. It is easily removed with cleaning solution, plain water doesn't cut it.
Ideas?
Crater Eddie
Good thought, but I don't think so. I tried taking photos, but it didn't work out well.
It looks like a white haze unevenly distributed along the surface of the slide. If I try to wipe it off it just smears. Soap and water or Windex take it right off.
CE
Crater Eddie said:
Good thought, but I don't think so.
I didn't think so either, but I couldn't think of a good explanation
. You say you tried to image it: did you try cleaning the top surface then putting the cover glass on a slide, contaminated-side down?
What I meant was that I tried photographing the slides with just the camera. I have the microscope partially disassembled right now trying to correct alignment issues, but when I get it back together I'll try as you suggest.
CE
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