赤铁矿和橄榄石标准样品相关专利的样品微区原位铁同位素和镁同位素数据集

本项目关于赤铁矿和橄榄石标准样品相关专利的样品微区原位铁同位素和镁同位素数据集，在中国地质大学（武汉）地质过程与矿产资源国家重点实验室，采用NEPTUNE Plus多接收器电感耦合等离子体质谱仪与NWR FemtoUC飞秒系统联用获得，原位铁镁同位素分析采用线扫描模式进行，通过湿等离子体抑制基体效应，使用SSB方法校正质量分馏，并将结果转换为标准千分比表示，可用于判断所制备的块状赤铁矿和橄榄石标准样品铁同位素或镁同位素的均匀程度，成份均匀的样品可以进一步开发为标准样品。

This dataset presents in-situ micro-area iron and magnesium isotope data of samples associated with patents for standard hematite and olivine samples. The data were collected at the State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences (Wuhan), using a coupled system of NEPTUNE Plus multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS) and NWR FemtoUC femtosecond laser ablation system. The in-situ iron and magnesium isotope analysis was performed via line scan mode. Matrix effects were suppressed by wet plasma, mass fractionation was corrected using the SSB method, and all results were expressed in standard per mil (‰) notation. This dataset can be used to assess the homogeneity of iron or magnesium isotopes in the prepared massive hematite and olivine standard samples, and samples with homogeneous compositions can be further developed as certified reference materials (CRMs).

搜集汇总

背景与挑战

背景概述

该数据集由中国地质大学（武汉）地质过程与矿产资源国家重点实验室使用先进仪器联用技术（NEPTUNE Plus多接收器电感耦合等离子体质谱仪与NWR FemtoUC飞秒系统）获得，采用线扫描模式进行微区原位铁和镁同位素分析，通过湿等离子体抑制基体效应和SSB方法校正，结果以标准千分比表示。数据集主要用于评估赤铁矿和橄榄石标准样品的铁、镁同位素均匀性，均匀样品可进一步开发为地质标准样品，支持地质研究和应用。