Hi, For those of you doing CO2 laser work - are any of you using a "cover slip" over your sample wells on top of your planchette? If so, what material are you using, where did you buy them, and how much did they cost? TIA Mike -- ******************************************************************** Michael M. Cheatham 312 Heroy Geology Laboratory Phone (315)-443-1261 Syracuse University Fax (315)-443-3363 Syracuse, NY 13244-1070 email:[log in to unmask] http://www.geochemistry.syr.edu/cheatham/Cheatham.HTML http://www.geochemistry.syr.edu/cheatham/InstrPages.html owner of PLASMACHEM-L: http://listserv.syr.edu/archives/plasmachem-l.html owner of XRF-L: http://listserv.syr.edu/archives/xrf-l.html owner of TIMS-L: http://listserv.syr.edu/archives/tims-l.html ********************************************************************