Sample preparation and chromatographic separation for Sr, Nd, and Pb isotope analysis in geological, environmental, and archaeological samples

IF 1.1 4区地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS

Journal of Geosciences Pub Date : 2022-11-11 DOI:10.3190/jgeosci.357

Erban-Kochergina Y.V., E. V., HO J.M.

引用次数: 2

Abstract

In countless modern geochemical studies, diverse biological and geologic samples are analyzed for Sr, Nd, and Pb isotopic composition. Such heterogeneity presents challenges for a “one-size-fits-all” approach to sample preparation, necessitating customization of sample preparation and chromatographic separation methods. We present (1) digestion techniques for low-Nd silicates, carbonatites, carbonates, water, plant and wood material, organic soils, aerosols collected via filtration, as well as archaeological samples (alloys, teeth, and bones) (2) a column chromatographic approach for samples with low concentrations (large amounts of a matrix) and (3) method verification via replicate analyses of a wide variety of isotopic standards.

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地质、环境和考古样品中Sr、Nd和Pb同位素分析的样品制备和色谱分离

在无数的现代地球化学研究中，对不同的生物和地质样品进行了Sr、Nd和Pb同位素组成分析。这种异质性对样品制备的“一刀切”方法提出了挑战，需要定制样品制备和色谱分离方法。我们提出了（1）低钕硅酸盐、碳酸盐岩、碳酸盐、水、植物和木材材料、有机土壤、通过过滤收集的气溶胶的消化技术，以及考古样品（合金、牙齿和骨骼）（2）低浓度样品（大量基质）的柱色谱法和（3）通过各种同位素标准的重复分析进行方法验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Geosciences GEOSCIENCES, MULTIDISCIPLINARY-MINERALOGY

CiteScore

2.30

自引率

7.10%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Geosciences is an international peer-reviewed journal published by the Czech Geological Society with support from the Czech Geological Survey. It accepts high-quality original research or review papers dealing with all aspects of the nature and origin of igneous and metamorphic rocks. The Journal focuses, mainly but not exclusively, on: -Process-oriented regional studies of igneous and metamorphic complexes- Research in structural geology and tectonics- Igneous and metamorphic petrology- Mineral chemistry and mineralogy- Major- and trace-element geochemistry, isotope geochemistry- Dating igneous activity and metamorphic events- Experimental petrology and mineralogy- Theoretical models of igneous and metamorphic processes- Mineralizing processes and mineral deposits. All the papers are written in English, even though they may be accompanied by an additional Czech abstract. Each contribution is a subject to peer review by at least two independent reviewers, typically at least one from abroad. The Journal appears 2 to 4 times a year. Formally it is divided in annual volumes, each of them including 4 issues.