Report on the 20th International Radiocarbon Conference Graphitization Workshop
Report on the 20th International Radiocarbon Conference Graphitization Workshop
复制标题
第二十届国际放射性碳会议石墨化研讨会报告
DOI：
10.1017/s0033822200046312
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发表时间：
2010
期刊：
影响因子：
8.3
通讯作者：
C. Prior
中科院分区：
文献类型：
--
作者：
J. Turnbull;C. Prior
在第20届国际放射性碳会议上召开了样品制备研讨会，约有30-40人参加。没有对“样品制备”一词作进一步的具体说明，以使与会者能够处理对他们最重要的实验室问题。由于时间有限，重点很快缩小到加速器质谱（AMS）石墨制备的细节，特别是对小样品的程序感兴趣，因此我们改变了标题以反映重点。在这里，我们总结了研讨会的讨论，增加了额外的背景信息和参考出版物。包括石墨制备的几个方面：催化剂类型和催化剂与碳的比例;各种样品尺寸的最佳反应温度;除水方法;压力传感器的类型;催化剂的预处理;以及非常小样品中的空白值问题。并对样品稀释的利弊进行了讨论。
A sample preparation workshop was convened at the 20th International Radiocarbon conference, with about 30–40 attendees. The term “sample preparation” was not further specified to allow participants to address the laboratory issues most important to them. Given the short time available, the focus quickly narrowed to details of graphite preparation for accelerator mass spectrometry (AMS), with particular interest in procedures for small samples, and hence we have changed the title to reflect the focus. Here, we summarize the workshop discussion, adding additional background information and references to publications. Several aspects of graphite preparation are included: catalyst types and ratio of catalyst to carbon; optimal reaction temperatures for various sample sizes; methods for water removal; types of pressure transducers; preconditioning of catalyst; and problems with blank values in very small samples. The pros and cons of sample dilution were also discussed.