New guidelines for δ13C measurements
Analytical Chemistry
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Abstract
Consistency of δ13C measurements can be improved 39−47% by anchoring the δ13C scale with two isotopic reference materials differing substantially in 13C/12C. It is recommended thatδ13C values of both organic and inorganic materials be measured and expressed relative to VPDB (Vienna Peedee belemnite) on a scale normalized by assigning consensus values of −46.6‰ to L-SVEC lithium carbonate and +1.95‰ to NBS 19 calcium carbonate. Uncertainties of other reference material values on this scale are improved by factors up to two or more, and the values of some have been notably shifted: the δ13C of NBS 22 oil is −30.03%.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | New guidelines for δ13C measurements |
| Series title | Analytical Chemistry |
| DOI | 10.1021/ac052027c |
| Volume | 78 |
| Issue | 7 |
| Year Published | 2006 |
| Language | English |
| Publisher | ACS Publications |
| Description | 3 p. |
| First page | 2439 |
| Last page | 2441 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |