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Intercomparison of$ ^{14}$C Dating of Wood Samples at Lund University and ETH-Zurich AMS Facilities: Extraction, Graphitization, and Measurement
| Content Provider | Scilit |
|---|---|
| Author | Adolphi, F. Güttler, D. Wacker, L. Skog, G. Muscheler, R. |
| Copyright Year | 2013 |
| Description | We conducted an interlaboratory comparison between our radiocarbon-related research group at Lund University and the established ETH-Zurich facility to test the quality of the results obtained in Lund and to identify sources of potential background differences and scatter. We did find differences between the 2 laboratories in the contributions of chemical preparation, graphitization, and measurements to the overall background. The resulting overall background is, however, almost similar. Multiple measurements on 2 wood samples of known calendar age yield consistent and accurate$ ^{14}$C ages in both laboratories. However, one of our known samples indicates that IntCal09 is ≃38 ± 16$ ^{14}$C BP too young at 7020 calendar yr BP, which is consistent with one of the raw data sets contributing to IntCal09. Overall, our results show that a systematic approach to compare the different steps involved in$ ^{14}$C age determination is a useful exercise to pinpoint targets for improvement of lab routines and assess interlaboratory differences. These effects do not necessarily become apparent when comparing$ ^{14}$C measurements that integrate over the whole process of preparation and measurement of different laboratories. |
| Related Links | https://www.cambridge.org/core/services/aop-cambridge-core/content/view/0EAA82A711F86626C6646C4426FCBC2E/S0033822200057519a.pdf/div-class-title-intercomparison-of-span-class-sup-14-span-c-dating-of-wood-samples-at-lund-university-and-eth-zurich-ams-facilities-extraction-graphitization-and-measurement-div.pdf |
| Ending Page | 400 |
| Page Count | 10 |
| Starting Page | 391 |
| ISSN | 00338222 |
| e-ISSN | 19455755 |
| DOI | 10.1017/s0033822200057519 |
| Journal | Radiocarbon |
| Issue Number | 2 |
| Volume Number | 55 |
| Language | English |
| Publisher | Cambridge University Press (CUP) |
| Publisher Date | 2013-01-01 |
| Access Restriction | Open |
| Subject Keyword | Radiocarbon |
| Content Type | Text |
| Resource Type | Article |
| Subject | Earth and Planetary Sciences Archeology (arts and humanities) |
