Strontium isotopes are applied to a wide range of scientific fields and to different types of materials, providing valuable information foremost about provenance and age, but also on diagenetic processes and mixing relationships between different Sr reservoirs. The development of in situ analytical techniques, such as laser ablation ICP-MS, has improved our understanding of Sr isotope variability in several fields of application, because of the possibility to discriminate small-scale changes and their spatial distribution. However, large outputs of Sr isotope data are produced by laser ablation MC-ICP-MS systems, which necessitate multiple offline steps to correct and assess the data. This requires the availability of simple and user-friendly tools, easily manageable by non-specialists too. With this in mind, we developed SrDR, an Excel-based interactive data reduction spreadsheet (‘SrDR’, Sr-Data-Reduction) for the processing of Sr isotopes measured by LA-MC-ICP-MS. The SrDR spreadsheet is easily customizable (a) to meet user-specific analytical protocols, (b) for different instruments (i.e. Nu plasma vs. Neptune), and (c) for diverse target materials (e.g. rare earth element enriched or depleted samples). We also include several examples relevant to low and high temperature geochemistry fields – a fossil tooth, a modern seashell, a speleothem sample and plagioclase crystals – to show how different sample materials are corrected for different interfering masses.

中文翻译：

---

通过基于Excel的交互式电子表格'SrDR'快速减少激光烧蚀MC-ICP-MS Sr同位素的离线数据

锶同位素应用于广泛的科学领域和不同类型的材料，不仅提供有关起源和年龄的宝贵信息，而且还提供有关成岩过程和不同锶储层之间混合关系的有价值的信息。原位开发由于可以区分小规模变化及其空间分布，因此诸如激光烧蚀ICP-MS之类的分析技术已使我们更好地理解了Sr同位素在一些应用领域中的变异性。但是，激光烧蚀MC-ICP-MS系统会产生大量的Sr同位素数据，这需要多个离线步骤来校正和评估数据。这就要求提供简单易用的工具，并且非专业人员也可以轻松地对其进行管理。考虑到这一点，我们开发了SrDR，这是一个基于Excel的交互式数据缩减电子表格（“ SrDR”，Sr-Data-Reduction），用于处理通过LA-MC-ICP-MS测量的Sr同位素。可轻松自定义SrDR电子表格（a）以满足用户特定的分析协议，（b）适用于不同的仪器（即Nu血浆vs. Neptune），以及（c）各种目标物质（例如富集或贫化稀土元素的样品）。我们还提供了与低温和高温地球化学领域相关的几个示例，包括化石齿，现代贝壳，蛇纹石样品和斜长石晶体，以显示如何针对不同的干扰质量校正不同的样品材料。