AMS 14C Sample Preparation at the KCCAMS/UCI Facility: Status Report and Performance of Small Samples
We present an overview of accelerator mass spectrometry (AMS) radiocarbon sample preparation and measurements, describing the technical upgrades that now allow us to routinely obtain 0.2–0.3% precision for 1-mg carbon samples. A precision of ∼1% on samples with 100 μg of carbon can also be achieved....
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| Veröffentlicht in: | Radiocarbon 2007, Vol.49 (2), p.255-269 |
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| container_issue | 2 |
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| container_title | Radiocarbon |
| container_volume | 49 |
| creator | Santos, G M Moore, R B Southon, J R Griffin, S Hinger, E Zhang, D |
| description | We present an overview of accelerator mass spectrometry (AMS) radiocarbon sample preparation and measurements, describing the technical upgrades that now allow us to routinely obtain 0.2–0.3% precision for 1-mg carbon samples. A precision of ∼1% on samples with 100 μg of carbon can also be achieved. We have also developed graphitization techniques and AMS procedures for ultra-small samples (down to 0.002 mg of carbon). Detailed time series are presented for large and small aliquots of standards such as NIST OX-I and OX-II; FIRI-C and -D; IAEA-C6, -C7 and -C8; and 14C-free samples. |
| doi_str_mv | 10.1017/S0033822200042181 |
| format | Article |
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A precision of ∼1% on samples with 100 μg of carbon can also be achieved. We have also developed graphitization techniques and AMS procedures for ultra-small samples (down to 0.002 mg of carbon). 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| ispartof | Radiocarbon, 2007, Vol.49 (2), p.255-269 |
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| language | eng |
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| source | Cambridge Journals Online; EZB-FREE-00999 freely available EZB journals; Free Full-Text Journals in Chemistry |
| subjects | Art and archaeology Dating Generalities Laboratory technics Methodology Methods Research principies Sample Preparation |
| title | AMS 14C Sample Preparation at the KCCAMS/UCI Facility: Status Report and Performance of Small Samples |
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