Development of a method for fast and automatic radiocarbon measurement of aerosol samples by online coupling of an elemental analyzer with a MICADAS AMS
| Data(s) |
2015
31/12/1969
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|---|---|
| Resumo |
A fast and automatic method for radiocarbon analysis of aerosol samples is presented. This type of analysis requires high number of sample measurements of low carbon masses, but accepts precisions lower than for carbon dating analysis. The method is based on online Trapping CO2 and coupling an elemental analyzer with a MICADAS AMS by means of a gas interface. It gives similar results to a previously validated reference method for the same set of samples. This method is fast and automatic and typically provides uncertainties of 1.5–5% for representative aerosol samples. It proves to be robust and reliable and allows for overnight and unattended measurements. A constant and cross contamination correction is included, which indicates a constant contamination of 1.4 ± 0.2 μg C with 70 ± 7 pMC and a cross contamination of (0.2 ± 0.1)% from the previous sample. A Real-time online coupling version of the method was also investigated. It shows promising results for standard materials with slightly higher uncertainties than the Trapping online approach. |
| Formato |
application/pdf application/pdf |
| Identificador |
http://boris.unibe.ch/73284/1/1-s2.0-S0168583X15002700-main.pdf Salazar, Gary A.; Zhang, Yanlin; Agrios, Konstantinos; Szidat, Sönke (2015). Development of a method for fast and automatic radiocarbon measurement of aerosol samples by online coupling of an elemental analyzer with a MICADAS AMS. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 361, pp. 163-167. Elsevier 10.1016/j.nimb.2015.03.051 <http://dx.doi.org/10.1016/j.nimb.2015.03.051> doi:10.7892/boris.73284 info:doi:10.1016/j.nimb.2015.03.051 urn:issn:0168-583X |
| Idioma(s) |
eng |
| Publicador |
Elsevier |
| Relação |
http://boris.unibe.ch/73284/ |
| Direitos |
info:eu-repo/semantics/restrictedAccess info:eu-repo/semantics/embargoedAccess |
| Fonte |
Salazar, Gary A.; Zhang, Yanlin; Agrios, Konstantinos; Szidat, Sönke (2015). Development of a method for fast and automatic radiocarbon measurement of aerosol samples by online coupling of an elemental analyzer with a MICADAS AMS. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 361, pp. 163-167. Elsevier 10.1016/j.nimb.2015.03.051 <http://dx.doi.org/10.1016/j.nimb.2015.03.051> |
| Palavras-Chave | #570 Life sciences; biology #540 Chemistry |
| Tipo |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed |
