Quality control procedures have been developed at the Laboratoire de Mesure du Carbone 14 (LMC14) national laboratory throughout the years of operation. Routine procedures are applied to sample preparation depending on their composition and their size. The tuning of the ARTEMIS AMS facility, hosted by the LMC14 laboratory, uses an accurate procedure. A batch of unknown samples is measured with accompanying samples (primary and secondary standards and blanks), which give a powerful set of data to control the quality of each measurement. A homemade database has been created to store the sample information and study the evolution of the accompanying samples. The LMC14 laboratory participated in the Sixth International Radiocarbon Intercomparison, SIRI. The results are presented here, with statistical tests to assess the quality of the preparations and measurements done at the LMC14 national laboratory. To obtain a reliable radiocarbon (14C) age by AMS, 1 mg of sample is required in routine analysis. Recently, the LMC14 developed a new procedure dedicated to microsamples, allowing the size of samples to be reduced and contributing to opening 14C dating to materials that were previously unreachable. This new procedure has been successfully tested on valuable Cultural Heritage samples: lead white mural paintings.

中文翻译：

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Artemis，LMC14 国家实验室的 14C AMS 设施：质量控制和微量样品程序的状态报告

多年来，Laboratoire de Mesure du Carbone 14 (LMC14) 国家实验室制定了质量控制程序。根据样品的组成和大小，将常规程序应用于样品制备。由 LMC14 实验室托管的 ARTEMIS AMS 设施的调整使用了准确的程序。一批未知样品与伴随样品（​​主要和次要标准品和空白）一起测量，这提供了一组强大的数据来控制每次测量的质量。已经创建了一个自制数据库来存储样本信息并研究伴随样本的演变。LMC14实验室参加了SIRI第六次国际放射性碳比对。结果显示在这里，通过统计测试来评估在 LMC14 国家实验室进行的准备和测量的质量。为了获得可靠的放射性碳（14C) AMS 年龄，常规分析需要 1 mg 样品。最近，LMC14 开发了一种专用于微量样品的新程序，可以减少样品的大小并有助于打开14C 可以追溯到以前无法访问的材料。这一新程序已在珍贵的文化遗产样本上成功测试：铅白壁画。