JOE
-- *********************************************************************** JOSE R. MARTINEZ ORTIZ SCIENTIFIC INSTRUMENTATION SPECIALIST UNIVERSITY OF PUERTO RICO DEPT. OF CHEMISTRY Tel. (787)764-0000 x4819 PO Box 21352 UPR Station e-mail:joenmr@uprnmr1.chem.uprr.pr San Juan PR 00931-1352 http://uprnmr1.chem.uprr.pr ***********************************************************************