Microwave Oven Pretreatment of Carbonates for 14C Dating by Accelerator Mass Spectrometry
نویسندگان
چکیده
منابع مشابه
Quality of Graphite Target for Biological/Biomedical/Environmental Applications of 14C-Accelerator Mass Spectrometry
Catalytic graphitization for (14)C-accelerator mass spectrometry ((14)C-AMS) produced various forms of elemental carbon. Our high-throughput Zn reduction method (C/Fe = 1:5, 500 degrees C, 3 h) produced the AMS target of graphite-coated iron powder (GCIP), a mix of nongraphitic carbon and Fe(3)C. Crystallinity of the AMS targets of GCIP (nongraphitic carbon) was increased to turbostratic carbon...
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The capability to prepare samples accurately and reproducibly for analysis of tritium (3H) content by accelerator mass spectrometry (AMS) greatly facilitates isotopic tracer studies in which attomole levels of 3H can be measured in milligram-sized samples. A method has been developed to convert the hydrogen of organic samples to a solid, titanium hydride, which can be analyzed by AMS. Using a t...
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On 19 September 1991 an extraordinary archaeological discovery was made at a high-altitude mountain pass (Tisenjoch, 3210 m) of the Ötztal Alps near the Austrian-Italian border. Two mountain hikers from Nürnberg, Erika and Helmut Simon, after having scaled the Finail Peak (3516 m) that day were on their way back to the Similaun mountain hut (3019 m) located at the lowest part of a mountain ridg...
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Accelerator mass spectrometry (AMS) is the most sensitive method for detecting and quantifying rare long-lived isotopes with high precision. In this chapter, we review the principles underlying AMS-based biomedical studies, focusing on important practical considerations and experimental procedures needed for the detection and quantitation of (14)C- and (3)H-labeled compounds in various experime...
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The Vienna Environmental Research Accelerator (VERA) is a dedicated facility for accelerator mass spectrometry (AMS), operated at the University of Vienna since 1996. The principle of AMS with VERA and the advantage of measuring long-lived radioisotopes by atom counting (AMS) rather than decay counting (ß decay) is described. A brief overview on AMS applications is also presented.
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ژورنال
عنوان ژورنال: Radiocarbon
سال: 1988
ISSN: 0033-8222,1945-5755
DOI: 10.1017/s0033822200044428