I don't have an answer for you but am intrigued at the possibility of using Mg isotopes for environmental investigation and evaluation of bioremediation effectiveness. I had not heard of Mg isotopes before and would like to know more about it. What information do you have on how Mg participates in biogeochemical processes? I would appreciate any info you can provide me. Said Amali, Ph.D. Soil Scientist Kennedy/Jenks Consultants USA [log in to unmask] ---------- > From: Reiner Giesler <[log in to unmask]> > To: [log in to unmask] > Subject: Mg isotopes > Date: Saturday, September 20, 1997 4:46 AM > > Dear listmembers, > > Can anyone help us to verify Mg isotope ratios from biogeochemical samples > by analysing a few samples? We have found 25Mg/24Mg ratios in the inteval > 0.1264-0.1280 and 26Mg/24Mg in the interval 01395-0.1415. The analyses were > performed on ICP-MS. > > > Sincerely > > > Harald Grip > > > e-mail: [log in to unmask]