We have been asked about running methane in soils for 13C. Does anyone have techniques/information/warnings that they are willing to share? We have a DeltaPLus with EA, DeltaPlusXL with gas bench, TC/EA, and GC-GCC available. Thanks, Janet Janet Gabites, Stable Isotope Facility, Pacific Centre for Isotope and Geochemical Research, Department of Earth and Ocean Sciences, The University of British Columbia, Vancouver, B.C. V6T 1Z4 ph 604-822-6654 fax 604-822-6088 http://www.eos.ubc.ca/research/pcigr/PCIGR.htm