In response to Margaret's question: >I have designed a student lab to illustrate the necessity for precautions >while handling hazardous material. I am after a (harmless) liquid reagent, >which looks unremarkable under room light, but will fluoresce under UV >light. The idea is that the students perform various manipulations, and at >the end, we shine UV light around to show them how much spillage they've >had, and how their books, faces etc are likely to be contaminated. I got >the idea from a radiactive safety video, but am having trouble finding a >suitable liquid. Any ideas? I seem to remember that Aesculin is brightly fluorescent and relatively non-toxic (please check the latter before using!) Arnold -------------------------------- Arnold Richard Pizzey Department of Haematology 98 Chenies Mews London WC1E 6HX United Kingdom a.pizzey@ucl.ac.uk (044) 0171 209 6234 fax: 0171 209 6222 -------------------------------
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