维也纳Peedee的"LSVEC问题"是碳同位素-三角洲尺度
Philip J H Dunn1, Federica Camin2
1National Measurement Laboratory, LGC Limited, Teddington, UK.
Rapid communications in mass spectrometry : RCM
|June 26, 2024
概括
碳酸参考材料 (LSVEC) 的撤销会影响碳同位素 delta 的测量. 本文回顾了维持测量可追溯到维也纳Peedee belemnite (VPDB) 尺度的建议.
科学领域:
- 地质化学 地质化学
- 计量学 计量学 计量学
- 环境科学 环境科学
背景情况:
- 碳酸参考材料 (LSVEC) 对于校准碳同位素-delta测量至关重要.
- 自2016年以来的撤回引发了对测量可追溯性和一致性的担忧.
- 讨论涉及国际机构,如物质量咨询委员会 (CCQM) 和国际纯和应用化学联盟 (IUPAC).
研究的目的:
- 总结LSVEC材料的背景及其在碳同位素-delta测量中的作用.
- 提出讨论的建议,以解决LSVEC退出的影响.
- 为2024年国际原子能机构咨询会议的讨论提供背景.
主要方法:
- 关于LSVEC材料的文献综述和信息综合.
- 分析各种国际科学委员会和工作组的讨论和建议.
- 在维也纳Peedee belemnite (VPDB) 碳同位素-三角洲尺度框架内的发现的上下文化.
主要成果:
- 自2016年以来,就LSVEC退出后果进行了激烈的讨论.
- 对于可追溯到VPDB尺度来说,LSVEC占据了一个关键位置.
- 专家社区已经考虑了解决LSVEC问题的各种建议.
结论:
- 取消LSVEC需要重新评估碳同位素-delta测量校准策略.
- 保持VPDB尺度的可追溯性是当前和未来测量的主要关注点.
- 提出的信息支持开发新的参考材料和稳定同位素比率测量的方法.
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