Cosmogenic radionuclide ¹⁰Be and ²⁶Al targets (BeO and Al₂O₃) for AMS analysis are produced by a growing number of geochemical laboratories, employing different sample processing methods for the extraction of Be and Al from environmental materials. The reliability of this geochronological tool depends on data reproducibility independent from the preparation steps and the AMS measurements. Our results demonstrate that ¹⁰Be and ²⁶Al concentrations of targets processed following different, commonly used protocols and measured at two AMS facilities lead to consistent results. However, insoluble fluoride precipitates, if formed during processing, can cause decreased ²⁶Al results, while ¹⁰Be concentrations are unaffected.

用于 AMS 分析的宇宙放射性核素¹⁰ Be 和²⁶ Al 目标（BeO 和 Al ₂ O ₃）由越来越多的地球化学实验室生产，采用不同的样品处理方法从环境材料中提取 Be 和 Al。该地质年代学工具的可靠性取决于独立于准备步骤和 AMS 测量的数据再现性。我们的结果表明，按照不同的常用协议处理并在两个 AMS 设施中测量的¹⁰ Be 和²⁶ Al 浓度的目标可得到一致的结果。然而，不溶性氟化物沉淀，如果在加工过程中形成，会导致²⁶Al 结果，而¹⁰ Be 浓度不受影响。