Graphitization of Small Carbonate Samples for Paleoceanographic Research at the Godwin Radiocarbon Laboratory, University of Cambridge
Bibliographic Data
| ID | 9244015 |
|---|---|
| Authors | E Freeman, L C Skinner, R Reimer, A Scrivner, S Fallon |
| Year | 2016 |
| Volume | 58 |
| Issue | 1 |
| Pages | 89-97 |
| Publication date | 2016-03-01 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Radiocarbon (JOURNAL) |
| Journal identifiers | ISSN: 0033-8222 • E-ISSN: 1945-5755 |
| Publisher | Cambridge University Press (CUP) (PUBLISHER) |
| DOI | 10.1017/rdc.2015.8 |
| OpenAlex | W2201320028 |
| Language | EN |
| Citations received | 4 |
| References cited | 6 |
A new radiocarbon preparation facility was set up in 2010 at the Godwin Laboratory for Palaeoclimate Research, at the University of Cambridge. Samples are graphitized via hydrogen reduction on an iron powder catalyst before being sent to the Chrono Centre, Belfast, or the Australian National University for accelerator mass spectrometry (AMS) analysis. The experimental setup and procedure have recently been developed to investigate the potential for running small samples of foraminiferal carbonate. By analyzing background values of samples ranging from 0.04 to 0.6 mg C along with similar sized secondary standards, the setup and experimental procedures were optimized for small samples. “Background” modern 14 C contamination has been minimized through careful selection of iron powder, and graphitization has been optimized through the use of “small volume” reactors, allowing samples containing as little as 0.08 mg C to be graphitized and accurately dated. Graphitization efficiency/fractionation is found not to be the main limitation on the analysis of samples smaller than 0.07 mg C, which rather depends primarily on AMS ion beam optics, suggesting further improvements in small sample analysis might yet be achieved with our methodology
Accelerator mass spectrometry · Carbon fibers · Carbonate · Chromatography · Fractionation · Metallurgy · Mineralogy · Radiocarbon dating · Radiochemistry · Archaeology and ancient environmental studies · Chemistry · Geology and Paleoclimatology Research · Materials Science · Pleistocene-Era Hominins and Archaeology · Environmental Chemistry · Geology · Paleontology
High resolution paleo-environmental changes during the Sapropel 1 in the North Ionian Sea, central Mediterranean
Radiocarbon Measurements of Small-Size Foraminiferal Samples with the Mini Carbon Dating System (Micadas) at the University of Bern
Laser Ablation System With a Diode Laser for Ams 14 C Measurement of Organic Materials
Radiocarbon Dating of Small-sized Foraminifer Samples
Ultra small-mass AMS 14C sample preparation and analyses at KCCAMS/UCI Facility
Ultra-Small Graphitization Reactors for Ultra-Microscale 14 C Analysis at the National Ocean Sciences Accelerator Mass Spectrometry (Nosams) Facility
Report on the 20th International Radiocarbon Conference Graphitization Workshop
Advances in Handling Small Radiocarbon Samples at the Laboratoire de Mesure du Carbone 14 in Saclay, France
Performance Test of a New Graphite Target Production Facility in Atomki
New 14 C Reference Materials with Activities of 15 and 50 pMC
| Citations per year | 0.5 |
|---|---|
| Citation span | 2018 - 2024 (7) |
| Highly cited | No |