We are looking to replace our ancient Perkin Elmer C:H:N analyser. Any suggestions/discussion of the merits of what is now available would be greatly appreciated. Our situation is that we have multiple users including many young students so a machine that is both user friendly and durable would be optimal. Thank you! Margaret xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Margaret B. Lansing U.S. Dept. of Commerce National Oceanic & Atmospheric Administration Great Lakes Environmental Research Laboratory 2205 Commonwealth Blvd. Ann Arbor, MI 48105 [log in to unmask] 313-741-2289 (lab) 313-741-2210 (office) 313-741-2055 (fax) xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx