Geostandards and Geoanalytical Research最新文献

{"title":"GGR Handbook of Rock and Mineral Analysis Chapter 24 Multiple Collector ICP-MS: Technological Advances in High Precision Isotope Ratio Measurements Across the Periodic Table","authors":"Sune G. Nielsen,&nbsp;Andy W. Heard,&nbsp;Justin Y. Hu,&nbsp;Mark Rehkämper","doi":"10.1111/ggr.70056","DOIUrl":"https://doi.org/10.1111/ggr.70056","url":null,"abstract":"<p>This chapter (Multiple Collector ICP-MS: Technological advances in high precision isotope ratio measurements across the Periodic Table) is a contribution to the <i>Geostandards and Geoanalytical Research Handbook of Rock and Mineral Analysis</i> – an online textbook that is a fully revised and updated edition of <i>A Handbook of Silicate Rock Analysis</i> (P. J. Potts, 1987, Blackie, Glasgow).</p><p>Chapter 24 (contributing to Section 4 of the handbook dealing with techniques for age determination and isotope ratio measurement) describes how MC-ICP-MS has, since its first commercialisation about three decades ago, become one of the most widely used platforms in Earth sciences and beyond for producing isotope ratio data across much of the periodic table. The success of MC-ICP-MS relies on continuing technological developments, which have allowed the measurement of increasingly diverse isotope compositions at ever-improving precision. In this review article, we describe the fundamentals of the original technology and the developments that continue to render MC-ICP-MS cutting edge instrumentation. We outline the strategies for data processing and sample introduction that can be chosen depending on the type of element and isotope measurement that is targeted. We also provide a broad overview of the applications that have followed as the technology became increasingly powerful. These include radiogenic, nucleosynthetic, cosmogenic and stable isotope measurements. Finally, we discuss some of the latest advances in MC-ICP-MS technology including collision reaction cell applications and triple isotope measurements that can distinguish different isotope fractionation mechanisms.</p>","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"50 3","pages":"519-554"},"PeriodicalIF":2.8,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148704424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Resolving Micrometre-Scale Zircon Growth in Silicic Systems by 7 μm LA-MC-ICP-MS U-Pb Dating: Linking Petrology and Geochronology in Silicic Volcanic and Granitic Rocks from Victoria, Australia","authors":"Cristiano Lana,&nbsp;John D. Clemens","doi":"10.1111/ggr.70054","DOIUrl":"https://doi.org/10.1111/ggr.70054","url":null,"abstract":"<p>We present a systematic evaluation of high spatial-resolution zircon U-Pb dating using a Thermo Scientific Neoma multi-collector ICP-MS coupled to a Resolution 193 nm excimer laser, operated at 7–15 μm spot diameters under routine high-throughput production conditions. Performance was assessed during extended measurement sessions comprising 300–400 analyses per run, with reference materials interspersed among unknowns. Three configurations were tested: 15 μm (8 Hz, 15 s), 7 μm (8 Hz, 12 s) and 7 μm (6 Hz, 9 s). Zircon reference materials (Plešovice, 91500, BB) were used to evaluate precision, accuracy, repeatability and down-hole fractionation (DHF). At 15 μm, individual ²⁰⁶Pb/²³⁸U uncertainties were typically 0.5–1% (2<i>s</i>), with intermediate measurement precision better than 0.5% (2<i>s</i>). DHF was smooth and repeatable, adequately modelled by linear or polynomial corrections. At 7 μm (8 Hz, 12 s), ²⁰⁶Pb/²³⁸U measurement repeatability precision for single spots of 0.5–1% was routinely achieved, overlapping with the best reported ≤ 10 μm LA-(MC)-ICP-MS performance. Reduced ablated mass (≤ 1 ng zircon), however, increased counting-statistical noise and DHF sensitivity. This primarily affects ²⁰⁷Pb/²⁰⁶Pb precision in Phanerozoic zircons, where low radiogenic ²⁰⁷Pb yielded single-spot uncertainties &gt; 5% and intermediate measurement precision of 8–10% RSD. Lower repetition rates further reduced ion yield, increasing ²⁰⁶Pb/²³⁸U uncertainties to 1.5–3% while improving depth control for ultra-thin domains. Application to Devonian silicic rocks from western Victoria demonstrates the geological value of 7–15 μm analyses. Small-spot data resolve Late Silurian–Early Devonian inherited cores (438–398 Ma) within younger Middle Devonian overgrowths, revealing widespread crustal inheritance not detectable with conventional 25–35 μm spots. These results indicate repeated entrainment of zircon derived from deep-crustal magmatism associated with the Benambran and Bindian orogenies, supporting a model of prolonged Devonian crustal reworking and magma recycling in the Lachlan Orogen.</p>","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"50 3","pages":"625-647"},"PeriodicalIF":2.8,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ggr.70054","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148704364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"50 2","pages":"245-246"},"PeriodicalIF":3.4,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148061879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"50 2","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148061878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"50 2","pages":"249-310"},"PeriodicalIF":3.4,"publicationDate":"2026-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148074024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"50 2","pages":"437-452"},"PeriodicalIF":3.4,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148075538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Overcoming Polyatomic Interferences in Sulfur Isotope Measurement Using MC-ICP-MS","authors":"Yang Yu,&nbsp;Patrick Sugden,&nbsp;Robert C. J. Steele,&nbsp;Mohammad Nuruzzama,&nbsp;Andrea Burke","doi":"10.1111/ggr.70019","DOIUrl":"https://doi.org/10.1111/ggr.70019","url":null,"abstract":"<p>Accurate and precise sulfur isotope (³²S, ³³S and ³⁴S) measurement using multi-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS) is often challenged by the formation of polyatomic ions, leading to isobaric interferences that overlap with sulfur isotopes of interest. Traditionally, high-resolution mode is required to resolve sulfur isotopes from these interferences, but achieving high resolving power typically comes with a substantial reduction in analyte sensitivity. In this study, we address the challenge of spectral interferences by adjusting plasma operating conditions (quantified using the Normalised Argon Index, NAI), thereby significantly mitigating the formation of polyatomic ions. As a result, δ³⁴S and δ³³S can be accurately measured at the peak centre in low-resolution mode. The use of low-resolution mode leads to an approximately threefold increase in sensitivity compared with conventional high-resolution measurement. This sensitivity improvement is particularly advantageous for analysing samples with low sulfur mass fractions, or where sample material is limited such as ice cores. In addition, the optimised plasma condition provides a predictable pattern of instrumental mass fractionation, which is essential for accurate mass bias correction using the standard-sample bracketing technique. Overall, our new approach simplifies the analytical workflow and minimises instrument wear, offering a sensitive, user-friendly, and high-throughput method for sulfur isotope measurement with MC-ICP-MS.</p>","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"50 1","pages":"85-95"},"PeriodicalIF":3.4,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ggr.70019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"GGR Handbook of Rock and Mineral Analysis Chapter 2 (Part 2) Analysis of Geological Materials – 2: Pre-Concentration and Separation Procedures","authors":"Philip Robinson","doi":"10.1111/ggr.70038","DOIUrl":"https://doi.org/10.1111/ggr.70038","url":null,"abstract":"<p>This chapter (Analysis of Geological Materials – 2: Pre-Concentration and Separation Procedures) is a contribution to the <i>Geostandards and Geoanalytical Research Handbook of Rock and Mineral Analysis</i> – an online textbook that is a fully revised and updated edition of <i>A Handbook of Silicate Rock Analysis</i> (P. J. Potts, 1987, Blackie, Glasgow).</p><p>In Chapter 2, Part 2 (from Section 1 of the handbook dealing with fundamentals of measurement and instrument design) the principles and procedures of ion exchange chromatographic techniques and processes are first examined followed by a review of their application to isotope measurement by TIMS and MC-ICP-MS for radiogenic and stable isotope systems. Determination of platinum-group and rare earth elements by ICP-MS is also covered. Following this, liquid-liquid (solvent) extraction and extraction chromatography are examined, including a review of EXC resins in the analysis of silicate materials. Part 2 Chapter 2 concludes with a treatment of coprecipitation and vapour generation (for hydrides, mercury and osmium).</p>","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"50 1","pages":"5-64"},"PeriodicalIF":3.4,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploration of a Combined LIBS and LA-ICP-MS Approach for Apatite Characterisation","authors":"C. Derrick Quarles Jr.,&nbsp;Benjamin T. Manard,&nbsp;N. Alex Zirakparvar,&nbsp;Joe Petrus,&nbsp;Bence Paul,&nbsp;David Douglas,&nbsp;Andy Gleadow,&nbsp;Barry Kohn,&nbsp;Samuel Boone,&nbsp;Ling Chung,&nbsp;Malcolm McMillan,&nbsp;Gokce K. Ustunisik,&nbsp;Francis M. McCubbin","doi":"10.1111/ggr.70021","DOIUrl":"https://doi.org/10.1111/ggr.70021","url":null,"abstract":"<p>A combined laser-induced breakdown spectroscopy (LIBS) and laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) method is demonstrated for comprehensive apatite analysis. These measurements provide elemental imaging that can be used as a screening technique for chemical selection of grains for subsequent analysis (e.g., U-Pb geochronology) or can be used to understand elemental distributions within a single grain that would have direct textural-chemical implications (e.g., zoning patterns). Adding LIBS as a simultaneous measurement, to LA-ICP-MS U-Pb geochronology, allowed for the direct determination of F (H and O show promise for future applications) in addition to major and trace elements of interest. The quantitative measurements were validated against a series of apatites with known values and used to characterise a wide range of samples. Fluorine detection limits were determined to be as low as 70 μg g^-1 F (broadband CMOS detector) and 4.2 μg g^-1 F (ICCD detector). U-Pb age dating was simultaneously collected by LA-ICP-MS with the quantitative elemental data from LIBS, providing a comprehensive method for geochronology.</p>","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"50 1","pages":"67-83"},"PeriodicalIF":3.4,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147565931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Six Ca-Mg-Fe Carbonate Reference Materials for In Situ Measurement of Oxygen and Carbon Isotope Ratios","authors":"Maria Rosa Scicchitano,&nbsp;Chris Harris,&nbsp;Julie Luyt,&nbsp;Andreas Pack,&nbsp;Tommaso di Rocco,&nbsp;Torsten Vennemann,&nbsp;Franziska D.H. Wilke,&nbsp;Anja M. Schleicher,&nbsp;Johannes Glodny,&nbsp;Kimberly T. Tait,&nbsp;Simon Philippo","doi":"10.1111/ggr.70031","DOIUrl":"https://doi.org/10.1111/ggr.70031","url":null,"abstract":"<p>Six potential Ca-Mg-Fe carbonate reference materials were assessed for oxygen and carbon isotope ratios homogeneity by secondary ion mass spectrometry (SIMS). This new suite includes three dolomites (Tucka-22, M9548.2, Eugui) and one ankerite (WPA-177-2) with Fe# ranging from 0.0004 to 0.3429, one magnesite (M21350.2) with Fe# = 0.0099 and one siderite (Vizille-1) with Fe# = 0.6152. The six materials were split into 128 to 2048 metrologically identical aliquots, each containing roughly 100 mg of sample. In this study, we report a detailed characterisation of the split materials for their major and minor chemical element compositions using electron probe microanalysis (EPMA), mineralogical compositions using X-ray diffraction (XRD), oxygen and carbon isotope values determined in three independent gas-source isotope ratio mass spectrometry (GS-IRMS) laboratories. The repeatability of our SIMS measurements varied from ± 0.15 to ± 0.31‰ (1 standard deviation, 1<i>s</i>) for δ¹⁸O and from ± 0.29 to ± 0.71‰ (1<i>s</i>) for δ¹³C. These six carbonate samples span a wide range in oxygen (δ¹⁸O_VSMOW from 12.98 ± 0.09‰ to 26.92 ± 0.11‰, 1 standard error of the mean, 1SE) and carbon (δ¹³C_VPDB from -11.74 ± 0.20‰ to 2.43 ± 0.06‰, 1SE) isotope ratios. Significant SIMS compositional matrix effects of +6.7‰ (for δ¹⁸O) and -3.2‰ (for δ¹³C) were observed along the dolomite-ankerite solid-solution series in the compositional range Fe# = 0.0004 to 0.3429. Similarly, large compositional matrix effects of +4.2‰ and -9.5‰ were observed for δ¹⁸O and δ¹³C, respectively, along the magnesite-siderite solid-solution series. This confirms the need for multiple matrix-matched reference materials spanning across a wide range in chemical compositions in order to get accurate SIMS isotope ratios in carbonate minerals that form solid-solutions. The Ca-Mg-Fe carbonate reference materials described in this study were produced in sufficient amounts to be available to the global geochemical community for years to come.</p>","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"50 1","pages":"155-179"},"PeriodicalIF":3.4,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ggr.70031","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}