Intercomparison of C-14 Dating of Wood Samples at Lund University and Eth-Zurich Ams Facilities: Extraction, Graphitization, and Measurement
(2013) In Radiocarbon 55(2-3). p.391-400- Abstract
- 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 C-14 ages in both laboratories. However, one of our known samples indicates that IntCal09 is similar to 38 +/- 16 C-14 BP too young at 7020 calendar yr BP, which is... (More)
- 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 C-14 ages in both laboratories. However, one of our known samples indicates that IntCal09 is similar to 38 +/- 16 C-14 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 C-14 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 C-14 measurements that integrate over the whole process of preparation and measurement of different laboratories. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4171598
- author
- Adolphi, Florian LU ; Guettler, D. ; Wacker, L. ; Skog, Göran LU and Muscheler, Raimund LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Radiocarbon
- volume
- 55
- issue
- 2-3
- pages
- 391 - 400
- publisher
- Arizona Board of Regents (University of Arizona)
- external identifiers
-
- wos:000325752100023
- scopus:84884357921
- ISSN
- 0033-8222
- language
- English
- LU publication?
- yes
- id
- f33ff4bd-9270-4086-9db3-e66a01a8f9bc (old id 4171598)
- date added to LUP
- 2016-04-01 14:01:00
- date last changed
- 2022-01-27 22:22:34
@article{f33ff4bd-9270-4086-9db3-e66a01a8f9bc, abstract = {{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 C-14 ages in both laboratories. However, one of our known samples indicates that IntCal09 is similar to 38 +/- 16 C-14 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 C-14 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 C-14 measurements that integrate over the whole process of preparation and measurement of different laboratories.}}, author = {{Adolphi, Florian and Guettler, D. and Wacker, L. and Skog, Göran and Muscheler, Raimund}}, issn = {{0033-8222}}, language = {{eng}}, number = {{2-3}}, pages = {{391--400}}, publisher = {{Arizona Board of Regents (University of Arizona)}}, series = {{Radiocarbon}}, title = {{Intercomparison of C-14 Dating of Wood Samples at Lund University and Eth-Zurich Ams Facilities: Extraction, Graphitization, and Measurement}}, volume = {{55}}, year = {{2013}}, }