Thanks for the info. Ouch!! I gues I will not be growing bacteria on enriched NaSO4 afterall. >To: ISOGEO1 --INTERNET [log in to unmask] > >*** Reply to note of 02/18/97 21:04 > >Re: 34S-enriched sulphide &sulphate > >The only supplier that I know of is Icon Services Inc., 19 Ox Bow Lane, Summit >NJ 07901, USA. (Phone: 800-322-4266, email: [log in to unmask]) I hope you don't >need much, because it is extremely expensive: they quoted me a price of >$45,000 for 300 g of Na2SO4 enriched to 10 atom % 34S. > >Regards, >Paul Sanborn >Research Pedologist >Prince George Forest Region 565-6100 --------------------------------------------------------------------- T.C. Onstott, Dept. of Geosciences Guyot Hall, Princeton, NJ 08544 USA ph: (609) 258-6898 fax: (609) 258-1274 [log in to unmask]