| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4699595 | Chemical Geology | 2011 | 9 Pages |
Abstract
âºWe present an isotope ratio mass spectrometer method to measure ice sample δ13CH4. ⺠We use a unique post-combustion trapping to produce a high amplitude sample peak. ⺠We require only ~ 165 pmol of CH4 (~ 30-150 g of ice, CH4 mixing ratio dependent). ⺠Precision was evaluated with atmospheric air, artificial and GISP2 ice samples. ⺠Precision is < ± 0.3 â° (1Ï) and our GISP2 results are in line with published data.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geochemistry and Petrology
Authors
Joe R. Melton, Michael J. Whiticar, Paul Eby,