In the present work, we describe a sequential U–Pb and Sm–Nd systematics measurement from natural LREE-enriched minerals using Neptune Plus MC-ICP-MS coupled with a 193 nm excimer laser in a single shot. MC-ICP-MS is equipped with an optical zoom lens to bring ion beams into the collector coincidently. The key features allow rapid switching between the U–Pb and Sm–Nd collector configurations, which are applied to simultaneously measure the U–Pb age and Sm–Nd isotope of common natural LREE-enriched minerals. The robustness and usefulness of the present protocol are investigated using a series of well-characterized mineral reference materials (i.e., monazite, titanite, perovskite) with known U–Pb and Sm–Nd isotopic values, which demonstrate its potential and versatility in geochemistry and cosmochemistry for microanalysis.

中文翻译：

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使用单激光烧蚀多收集器电感耦合等离子体质谱仪原位连续U–Pb年龄和Sm–Nd系统测量天然富含LREE的矿物

在当前的工作中，我们描述了使用Neptune Plus MC-ICP-MS与193 nm受激准分子激光在单次中从天然富含LREE的矿物中进行连续的U-Pb和Sm-Nd系统测量的过程。MC-ICP-MS配备了光学变焦镜头，可将离子束同时引入收集器。主要功能允许在U–Pb和Sm–Nd收集器配置之间快速切换，这些配置可用于同时测量常见的富含LREE的天然矿物的U–Pb年龄和Sm–Nd同位素。本实验方案的鲁棒性和有用性是使用一系列表征良好的矿物参考材料（即，独居石，钛铁矿，钙钛矿）具有已知的U–Pb和Sm–Nd同位素值，这表明了其在地球化学和宇宙化学中用于微观分析的潜力和多功能性。