Wen-Kai Jin , Xu-Dong Che , Ru-Cheng Wang , Huan Hu , Can Rao , Wen-Lan Zhang , Xiao-Feng Li
{"title":"通过 LA-ICP-MS 利用 13 μm 的烧蚀光斑原位精确测定铍矿物中的铍含量","authors":"Wen-Kai Jin , Xu-Dong Che , Ru-Cheng Wang , Huan Hu , Can Rao , Wen-Lan Zhang , Xiao-Feng Li","doi":"10.1016/j.gexplo.2024.107512","DOIUrl":null,"url":null,"abstract":"<div><p>Beryllium is a strategically critical metal, and its accurate <em>in situ</em> analysis in beryllium minerals is challenging in the field of earth science. High spatial resolution is also a difficult point in the analysis. A new analysis approach for the accurate and precise determination of beryllium contents in beryl using an ablation spot size of 13 μm by LA–ICP–MS was first achieved in this study. The control variables were used to optimise the instrument conditions and determine the laser ablation parameters suitable for determining beryl under an ablation spot size of 13 μm. The energy density was set at 5.5 J/cm<sup>2</sup> with a repetition rate of 4 Hz, and the ablation time was 50 s. A new concept, the Relative Fractionation Index (<em>RFI</em>), was proposed to measure fractionation and matrix effects. Two potential beryl reference substances (B4–2 and Brl-3) were also assessed by determining their homogeneity to further improve the measurement accuracy. Other common beryllium minerals, including phenakite, chrysoberyl, and herderite, were identified in this study. By comparing the <em>RFI</em> values of different minerals and reference materials, appropriate reference materials and determination conditions were selected, and ideal analysis results were obtained. Therefore, the accurate and precise determination of beryllium contents in common beryllium minerals was achieved using an ablation spot size of 13 μm by LA–ICP–MS.</p></div>","PeriodicalId":16336,"journal":{"name":"Journal of Geochemical Exploration","volume":null,"pages":null},"PeriodicalIF":3.4000,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Accurate and precise in situ determination of beryllium contents in beryllium minerals using ablation spot size of 13 μm by LA–ICP–MS\",\"authors\":\"Wen-Kai Jin , Xu-Dong Che , Ru-Cheng Wang , Huan Hu , Can Rao , Wen-Lan Zhang , Xiao-Feng Li\",\"doi\":\"10.1016/j.gexplo.2024.107512\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Beryllium is a strategically critical metal, and its accurate <em>in situ</em> analysis in beryllium minerals is challenging in the field of earth science. High spatial resolution is also a difficult point in the analysis. A new analysis approach for the accurate and precise determination of beryllium contents in beryl using an ablation spot size of 13 μm by LA–ICP–MS was first achieved in this study. The control variables were used to optimise the instrument conditions and determine the laser ablation parameters suitable for determining beryl under an ablation spot size of 13 μm. The energy density was set at 5.5 J/cm<sup>2</sup> with a repetition rate of 4 Hz, and the ablation time was 50 s. A new concept, the Relative Fractionation Index (<em>RFI</em>), was proposed to measure fractionation and matrix effects. Two potential beryl reference substances (B4–2 and Brl-3) were also assessed by determining their homogeneity to further improve the measurement accuracy. Other common beryllium minerals, including phenakite, chrysoberyl, and herderite, were identified in this study. By comparing the <em>RFI</em> values of different minerals and reference materials, appropriate reference materials and determination conditions were selected, and ideal analysis results were obtained. Therefore, the accurate and precise determination of beryllium contents in common beryllium minerals was achieved using an ablation spot size of 13 μm by LA–ICP–MS.</p></div>\",\"PeriodicalId\":16336,\"journal\":{\"name\":\"Journal of Geochemical Exploration\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2024-05-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Geochemical Exploration\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0375674224001286\",\"RegionNum\":2,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"GEOCHEMISTRY & GEOPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Geochemical Exploration","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0375674224001286","RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
Accurate and precise in situ determination of beryllium contents in beryllium minerals using ablation spot size of 13 μm by LA–ICP–MS
Beryllium is a strategically critical metal, and its accurate in situ analysis in beryllium minerals is challenging in the field of earth science. High spatial resolution is also a difficult point in the analysis. A new analysis approach for the accurate and precise determination of beryllium contents in beryl using an ablation spot size of 13 μm by LA–ICP–MS was first achieved in this study. The control variables were used to optimise the instrument conditions and determine the laser ablation parameters suitable for determining beryl under an ablation spot size of 13 μm. The energy density was set at 5.5 J/cm2 with a repetition rate of 4 Hz, and the ablation time was 50 s. A new concept, the Relative Fractionation Index (RFI), was proposed to measure fractionation and matrix effects. Two potential beryl reference substances (B4–2 and Brl-3) were also assessed by determining their homogeneity to further improve the measurement accuracy. Other common beryllium minerals, including phenakite, chrysoberyl, and herderite, were identified in this study. By comparing the RFI values of different minerals and reference materials, appropriate reference materials and determination conditions were selected, and ideal analysis results were obtained. Therefore, the accurate and precise determination of beryllium contents in common beryllium minerals was achieved using an ablation spot size of 13 μm by LA–ICP–MS.
期刊介绍:
Journal of Geochemical Exploration is mostly dedicated to publication of original studies in exploration and environmental geochemistry and related topics.
Contributions considered of prevalent interest for the journal include researches based on the application of innovative methods to:
define the genesis and the evolution of mineral deposits including transfer of elements in large-scale mineralized areas.
analyze complex systems at the boundaries between bio-geochemistry, metal transport and mineral accumulation.
evaluate effects of historical mining activities on the surface environment.
trace pollutant sources and define their fate and transport models in the near-surface and surface environments involving solid, fluid and aerial matrices.
assess and quantify natural and technogenic radioactivity in the environment.
determine geochemical anomalies and set baseline reference values using compositional data analysis, multivariate statistics and geo-spatial analysis.
assess the impacts of anthropogenic contamination on ecosystems and human health at local and regional scale to prioritize and classify risks through deterministic and stochastic approaches.
Papers dedicated to the presentation of newly developed methods in analytical geochemistry to be applied in the field or in laboratory are also within the topics of interest for the journal.