Dear Eric: You posted a question last month at ISOGEOCHEM regarding companies selling a plasma asher. I'm also looking for it for pretreating carbonate samples. Did you receive any tips regarding this issue? I'd appreciate your sending of information. Best wishes, ***************************************** Juske Horita Chemical and Analytical Sciences Division Oak Ridge National Laboratory P.O.Box 2008, MS6110 Oak Ridge, TN 37831-6110 (423) 576-2750 Fax: (423) 574-4961 e-mail: [log in to unmask] *****************************************