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Standard operation procedures and performance of the MICADAS radiocarbon laboratory at Alfred Wegener Institute (AWI), Germany
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms ( IF 1.4 ) Pub Date : 2021-04-03 , DOI: 10.1016/j.nimb.2021.03.016
Gesine Mollenhauer , Hendrik Grotheer , Torben Gentz , Elizabeth Bonk , Jens Hefter

The radiocarbon analysis laboratory at Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI) is equipped with an accelerator mass spectrometer (AMS) MICADAS (MIni CArbon Dating System). The laboratory provides routine 14C analyses on bulk organic matter, plant fragments, dissolved and particulate organic matter, individual molecular lipids, and carbonate (micro-) fossils with the aim to foster international research efforts in vulnerable high latitudes. The AWI MICADAS allows AMS 14C analysis on graphite targets as well as on CO2 samples via gas injection into the hybrid ion source. The laboratory thus provides reliable datasets even if only small amounts of sample material are available, a problem often encountered in polar research. Here we describe the standard operation procedures and sample preparation methods employed, and demonstrate the instrument performance and data quality based on repeat analysis of international reference materials.



中文翻译:

德国阿尔弗雷德·韦格纳研究所(AWI)的MICADAS放射性碳实验室的标准操作程序和性能

阿尔弗雷德·韦格纳研究所亥姆霍兹极地和海洋研究中心(AWI)的放射性碳分析实验室配备了加速器质谱仪(AMS)MICADAS(MIni卡本约会系统)。实验室提供了常规14 C分析,包括大块有机物,植物碎片,溶解的和颗粒状有机物,单个分子脂质和碳酸盐(微)化石,目的是促进在脆弱的高纬度地区开展国际研究。AWI MICADAS允许对石墨靶以及CO 2进行AMS 14 C分析样品通过气体注入混合离子源。因此,即使只有少量的样品材料,实验室也可以提供可靠的数据集,这是极地研究中经常遇到的问题。在这里,我们描述了采用的标准操作程序和样品制备方法,并基于对国际参考材料的重复分析证明了仪器的性能和数据质量。

更新日期:2021-04-04
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