Dear list, for many years, I have used "Merck Uvasol Polyethylene for spectroscopy" PE powder as a diluent and binder for pressing self-supporting pellets especially of air-sensitive substances. When I today wanted to order a new bottle, I had to learn that it's not available anymore (actually, since 2002... :-)). Does anyone of you know about any other supplier of spectroscopy-grade polyethylene powder? And more general, which binder/diluent do you use for preparing pellets of sensitive substances ? Best regards, Dominik -- Dr. Dominik Samuelis d.samuelis@fkf.mpg.de Max-Planck-Institut für Festkörperforschung Max Planck Institute for Solid State Research Heisenbergstr. 1 70569 Stuttgart Germany Phone +49-711-689-1769 Fax +49-711-689-1722 Web http://www.fkf.mpg.de/maier/