Dear isotopists and ornithologists, Recently a colleague collected some bird bones from the Galapagos and stored them in ethanol. They would like us to run the collagen for carbon and nitrogen isotope values. Although collagen should be resistant to short-term exposure to ethanol, I'm not sure that the material has not been compromised in some way. Does anyone have any such experience or information on whether ethanol will affect collagen isotope values? Thanks in advance, Bill -- Dr. William P. Patterson Associate Professor Department of Geological Sciences 114 Science Place University of Saskatchewan Saskatoon SK S7N 5E2 Canada Phone: 306-966-5691(office); 306-966-5712(lab) Email: [log in to unmask] Web: http://128.233.87.242/bill.html