Spectrochimica Acta Part B: Atomic Spectroscopy最新文献

{"title":"State-of-the-art MC-ICP-MS methodology for precise plutonium isotope ratios","authors":"SiQi Guo,&nbsp;Wei Wang,&nbsp;ZhiMing Li,&nbsp;Jiang Xu,&nbsp;RuiYang Xi,&nbsp;YaLong Wang,&nbsp;XiuFang Zhai,&nbsp;Liang Zhang,&nbsp;Lei Feng,&nbsp;XinYi Zhang,&nbsp;Mao Fan","doi":"10.1016/j.sab.2025.107375","DOIUrl":"10.1016/j.sab.2025.107375","url":null,"abstract":"<div><div>This work details technical advancements in multi-collector inductively coupled plasma mass spectrometry (MC–ICP–MS) for high-precision plutonium (Pu) isotope ratio analysis. Uranium (U) and Pu isotopes have been proven to exhibit similar mass fractionation effects, as measured using MC–ICP–MS, within analytical uncertainty. Herein, ²³³U-²³⁶U double spike method with IRMM3636 was developed to correct the mass fractionation while measuring Pu isotope measurement, achieving an RSD% of 0.0029 % for Pu isotope ratios at 10⁻² level. This method was the first one to precisely measure low-abundance isotopes such as ²⁴¹Pu and ²⁴²Pu via combining Faraday cup (10¹³Ω amplifier) and secondary electron multiplier detector configuration. At trace levels (ng), long-term RSDs of ²³⁹Pu at a laboratory working standard reached 0.019 % (²⁴¹Pu/²³⁹Pu) and 0.046 % (²⁴²Pu/²³⁹Pu) near the 10⁻⁴ level, demonstrating exceptionally high precision in the isotope ratio analysis and representing the highest precision reported to date for these ratios. This state-of-the-art method maintained high sample throughput while delivering exceptional accuracy. Its robustness was confirmed through successful application to Pu isotope analysis in irradiated nuclear fuel samples, highlighting its broad applicability.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"235 ","pages":"Article 107375"},"PeriodicalIF":3.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145466863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Precision measurement of hyperfine structure of the 2P1/2 and 2P3/2 states in B-like 35,37Cl12+ ions","authors":"X. Liu ,&nbsp;F.H. Qu ,&nbsp;W.Q. Wen ,&nbsp;X.P. Zhou ,&nbsp;A.V. Volotka ,&nbsp;Y.S. Kozhedub ,&nbsp;D.A. Glazov ,&nbsp;D.V. Zinenko ,&nbsp;J.G. Li ,&nbsp;B. Tu ,&nbsp;K. Yao ,&nbsp;Y. Yang ,&nbsp;B. Wei ,&nbsp;X. Ma ,&nbsp;Y. Zou ,&nbsp;J. Xiao","doi":"10.1016/j.sab.2025.107349","DOIUrl":"10.1016/j.sab.2025.107349","url":null,"abstract":"<div><div>The hyperfine splitting of highly charged ions has attracted significant interest as a sensitive probe for testing bound-state quantum electrodynamics (QED) and exploring nuclear properties in extreme electromagnetic fields. In this study, we report the first measurement of hyperfine structure in B-like <span><math><msup><mrow><mi>Cl</mi></mrow><mrow><mn>12</mn><mo>+</mo></mrow></msup></math></span> ions using visible emission spectroscopy with a Czerny–Turner spectrometer at the Shanghai high-temperature superconducting electron beam ion trap (SH-HtscEBIT). Through multi-Gaussian fitting, we extracted the hyperfine structure constants: <span><math><mrow><mi>A</mi><mtext>(</mtext><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup><msub><mrow><mi>P</mi></mrow><mrow><mn>1</mn><mo>/</mo><mn>2</mn></mrow></msub><mtext>)</mtext><mo>=</mo><mn>36</mn><mo>.</mo><mn>83</mn><mrow><mo>(</mo><mn>39</mn><mo>)</mo></mrow></mrow></math></span> GHz, <span><math><mrow><msup><mrow><mi>A</mi></mrow><mrow><msup><mrow></mrow><mrow><mo>′</mo></mrow></msup></mrow></msup><mtext>(</mtext><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup><msub><mrow><mi>P</mi></mrow><mrow><mn>3</mn><mo>/</mo><mn>2</mn></mrow></msub><mtext>)</mtext><mo>=</mo><mn>7</mn><mo>.</mo><mn>10</mn><mrow><mo>(</mo><mn>17</mn><mo>)</mo></mrow></mrow></math></span> GHz, and <span><math><mrow><msup><mrow><mi>B</mi></mrow><mrow><msup><mrow></mrow><mrow><mo>′</mo></mrow></msup></mrow></msup><mtext>(</mtext><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup><msub><mrow><mi>P</mi></mrow><mrow><mn>3</mn><mo>/</mo><mn>2</mn></mrow></msub><mtext>)</mtext><mo>=</mo><mn>12</mn><mo>.</mo><mn>99</mn><mrow><mo>(</mo><mn>64</mn><mo>)</mo></mrow></mrow></math></span> GHz/barn, along with the corresponding fine-structure splitting energies. These results are in good agreement with <em>ab initio</em> QED calculations for <span><math><mrow><msup><mrow></mrow><mrow><mn>35</mn><mo>,</mo><mn>37</mn></mrow></msup><msup><mrow><mi>Cl</mi></mrow><mrow><mn>12</mn><mo>+</mo></mrow></msup></mrow></math></span>, and provide direct experimental validation of higher-order interelectronic interaction effects. The present measurement establishes a valuable benchmark for theoretical models of hyperfine structure in mid-<span><math><mi>Z</mi></math></span> highly charged ions and paves the way for precision tests of bound-state QED in strong-field regimes.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"235 ","pages":"Article 107349"},"PeriodicalIF":3.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145326250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Femto- and picosecond laser induced breakdown spectrometry signals statistics","authors":"V.N. Lednev ,&nbsp;P.A. Sdvizhenskii ,&nbsp;A.V. Rogachevskaya ,&nbsp;P.A. Chizhov ,&nbsp;A.A. Ushakov ,&nbsp;V.V. Bulgakova ,&nbsp;V.A. Zavozin ,&nbsp;S.M. Pershin ,&nbsp;A.F. Bunkin","doi":"10.1016/j.sab.2025.107393","DOIUrl":"10.1016/j.sab.2025.107393","url":null,"abstract":"<div><div>The femto- and picosecond laser induced breakdown spectroscopy (LIBS) signals statistics have been studied in detail. The picosecond laser pulse energies distribution function followed to the Gaussian profile while that for the femtosecond pulse energy slightly deviated from the normality. The same laser system generated both femto- (200 fs) and picosecond (120 ps) pulses which ablated aluminum alloy in the air. Spatially, spectrally, and temporally resolved atomic, molecular and background plasma emission signals have been quantified to reveal the LIBS signals statistics. Unlike for nanosecond ablation, femtosecond and picosecond LIBS signals were distributed normally. Plasma electron temperature was determined for each single shot plasma to estimate temperature fluctuations on observed LIBS emission signals distribution functions. It was demonstrated that plasma temperature fluctuations had little influence on femtosecond LIBS signals statistics but had a moderate impact on picosecond plasma case. The greater influence of temperature fluctuations on LIBS signals distribution function for picosecond ablation were attributed to laser-plasma interaction.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"235 ","pages":"Article 107393"},"PeriodicalIF":3.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145569211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-channel fluorescence spectroscopy of the Rb 5S1/2 – 7S1/2 transition via monochromatic two-photon excitation","authors":"Sandan Wang ,&nbsp;Wanwan Cao ,&nbsp;Jinpeng Yuan ,&nbsp;Lirong Wang ,&nbsp;Liantuan Xiao ,&nbsp;Suotang Jia","doi":"10.1016/j.sab.2025.107387","DOIUrl":"10.1016/j.sab.2025.107387","url":null,"abstract":"<div><div>Multi-channel fluorescence detection of alkali atoms offers a robust approach to overcome the intrinsically low transition probabilities of conventional single-wavelength spectroscopy and thus enhances the development of frequency standards. Here, we experimentally realize the multi-channel fluorescence spectroscopy of the Rb 5<span><math><msub><mrow><mi>S</mi></mrow><mrow><mn>1</mn><mo>/</mo><mn>2</mn></mrow></msub></math></span> – 7<span><math><msub><mrow><mi>S</mi></mrow><mrow><mn>1</mn><mo>/</mo><mn>2</mn></mrow></msub></math></span> monochromatic two-photon transition using a single 760 nm laser. Simultaneous fluorescence emissions at 780 nm, 741 nm, 795 nm, 728 nm, and approximately 420 nm are observed, consistent with the expected decay channels. The dependence of these fluorescence intensities on laser power, polarization, and vapor temperature is systematically investigated, revealing the evolution of atomic transitions under varying experimental conditions. Pressure broadening measurements of the Rb 5<span><math><msub><mrow><mi>S</mi></mrow><mrow><mn>1</mn><mo>/</mo><mn>2</mn></mrow></msub></math></span> – 7<span><math><msub><mrow><mi>S</mi></mrow><mrow><mn>1</mn><mo>/</mo><mn>2</mn></mrow></msub></math></span> transition yield a spectral linewidth of <span><math><mo>∼</mo></math></span> <span><math><mrow><mn>1</mn><mo>.</mo><mn>08</mn><mrow><mo>(</mo><mn>2</mn><mo>)</mo></mrow></mrow></math></span> MHz. Compared with conventional single-wavelength detection at 420 nm, multi-channel approach significantly improves the signal-to-noise ratio and provides comprehensive insights into the atomic structure. These results establish a reliable foundation for developing optical frequency standards based on the Rb 5<em>S</em> – 7<em>S</em> transition.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"235 ","pages":"Article 107387"},"PeriodicalIF":3.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145569212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the influence of molecular structures and laser parameters on the laser-induced breakdown spectroscopy features of CN and C2 in plastic","authors":"Hao Zhou ,&nbsp;Yongyue Zheng ,&nbsp;Xiangjun Xu ,&nbsp;Geer. Teng ,&nbsp;Zhifang Zhao ,&nbsp;Mengyu Bao ,&nbsp;Bingheng Lu ,&nbsp;Leifu Wang ,&nbsp;Yuge Liu ,&nbsp;Shuai Xu ,&nbsp;Q.Q. Wang","doi":"10.1016/j.sab.2025.107380","DOIUrl":"10.1016/j.sab.2025.107380","url":null,"abstract":"<div><div>This paper investigates the laser-induced breakdown spectroscopy (LIBS) emission characteristics of CN(378.3–379.1 nm) and C₂(504.2–519.0 nm) in four representative types of polymer synthetic materials, examining their evolution pathways and the influence of different molecular structures to establish correlations linking CN emission with carbon atoms, and C₂ with C<img>C bonds. The impacts of laser wavelength (from visible to near infrared) and pulse duration (from nanoseconds to femtoseconds) on these emissions is emphatically explored. Findings show that the specificity of CN and C₂ molecular bands serves as a robust basis for organic material analysis. Using a 532 nm Nd:YAG laser can boost the emission intensity of CN, C₂, due to its higher single-photon energy than that of fundamental frequency. Furthermore, a fs-laser, with a pulse duration shorter than the lattice vibration time, ensures excellent signal reproducibility. The specific formation mechanism and influencing factors of laser-induced molecular fragmentation at different timescales from nanoseconds to femtoseconds was investigated. The experimental results show that the plastic classification accuracy of ns-LIBS exceeded 90 %, outperforming that of fs-LIBS. When using the CN and C₂ molecular bands from ns-LIBS (532 nm) as input, the SVM model achieved the highest accuracy of 96.35 %. On the other hand, fs-LIBS demonstrated significantly greater robustness, with its highest accuracy of 50.00 % substantially exceeding the 30.50 % obtained by ns-LIBS. Experimental results are expected to advance LIBS techniques for partial materials identification, with implications for environmental monitoring, waste management, and resource recovery, highlighting the potential of LIBS in analyzing plastics and promoting sustainability.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"235 ","pages":"Article 107380"},"PeriodicalIF":3.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145517099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Feasibility study on multivariate calibration transfer in X-ray fluorescence spectrometry","authors":"Vitaly Panchuk ,&nbsp;Zahars Selivanovs ,&nbsp;Victor Chubarov ,&nbsp;Galina Pashkova ,&nbsp;Dmitry Kirsanov","doi":"10.1016/j.sab.2025.107373","DOIUrl":"10.1016/j.sab.2025.107373","url":null,"abstract":"<div><div>Despite the widespread use of calibration model transfer in spectroscopy, its application to X-ray fluorescence (XRF) instruments has been largely unexplored. This study investigates the feasibility of transferring regression models between different XRF instruments: energy dispersive XRF (EDX) under varying conditions and between wavelength dispersive (WDX) and EDX. Metal ore samples were employed as a case study. We compared three model transfer algorithms (direct standardization, piecewise direct standardization, and slope and bias correction) for quantification of Al₂O₃, SiO₂, K₂O, CaO, TiO₂, MnO, Fe₂O₃. It was found that piecewise direct standardization generally performed best in terms of prediction accuracy on a test set with transferred models. For example, in case of Fe₂O₃ the direct EDX data plugging into WDX model leads to tenfold increase in quantification error (from 5.34 % for WDX to 52.75 % for raw EDX in the range from 0.03 to 97.52 %) which is definitely not acceptable even for semi-quantitative analysis. Model transfer allows decreasing the error down to original WDX model (quantification error for EDX data after direct standardization is 5.09 %). The study demonstrates the potential and the practicability of calibration transfer protocol in XRF studies.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"235 ","pages":"Article 107373"},"PeriodicalIF":3.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances and trends of non-destructive spectral identification of pigments in cultural heritage paintings","authors":"Huizhi Han","doi":"10.1016/j.sab.2025.107378","DOIUrl":"10.1016/j.sab.2025.107378","url":null,"abstract":"<div><div>Cultural heritage paintings, as important carrier of human cultural heritage, contain extremely high historical, artistic, and cultural value. With the continuous advancement of science and technology, the application of non-destructive, sensitive, and accurate analysis methods in the field of cultural heritage painting is becoming increasingly widespread, providing key technical support for revealing information such as the pigments, binders, production process, age, and restoration status of cultural heritage paintings. In recent years, some advanced identification techniques applied for cultural heritage paintings have also emerged, promoting the in-depth development of cultural heritage protection and researches. Herein, the purpose of this review is to highlight the latest developments in the characterization techniques and compositional analysis of cultural heritage paintings, as well as the classification of their components. Some new technologies and methods have also been provided to reveal the hidden details and degradation processes of cultural heritage paintings. Meanwhile, the challenges and prospects of component identification for cultural heritage paintings are also pointed out. This review is expected to provide new insights for researchers to better identify and protect cultural heritage paintings.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"235 ","pages":"Article 107378"},"PeriodicalIF":3.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of laser-induced breakdown spectroscopy to measure the thickness of ultra-thin boron films on molybdenum tiles","authors":"Zehua Liu ,&nbsp;Ran Hai ,&nbsp;Guoliang Xu ,&nbsp;Zhenhua Hu ,&nbsp;Rui Ding ,&nbsp;Guizong Zuo ,&nbsp;Xue Bai ,&nbsp;Huace Wu ,&nbsp;Cong Li ,&nbsp;Ding Wu ,&nbsp;Hongbin Ding","doi":"10.1016/j.sab.2025.107401","DOIUrl":"10.1016/j.sab.2025.107401","url":null,"abstract":"<div><div>Boronization is a critical wall conditioning technique that improves the plasma performance of nuclear fusion devices by effectively reducing impurity levels. The team associated with the International Thermonuclear Experimental Reactor (ITER) has identified boronization as an effective means of mitigating the release of high-Z impurities. High-power long-pulse discharges conducted at the Experimental Advanced Superconducting Tokamak (EAST) have demonstrated the feasibility of ITER operations. A real-time monitoring of boron (B) layer thickness deposited on the first wall is crucial under these conditions. In this study, laser-induced breakdown spectroscopy (LIBS) has been applied to measure the thickness of ultra-thin boron films deposited on molybdenum (Mo) substrates at 5 × 10⁻⁵ mbar to simulate the EAST vacuum conditions. A series of boron films on Mo substrate samples with thicknesses ranging from 30 to 300 nm were produced by pulsed laser deposition (PLD). In ns-laser ablation, the first laser pulse penetrates the boron film and excites the underlying Mo substrate, producing stable spectral lines from boron (B II 703.19 nm) and molybdenum (Mo I 710.99 nm). A direct correlation is established between the intensity ratio of the B II 703.19 nm to Mo I 710.99 nm signals and the boron film thickness. A laser ablation model has been established and used to fit the experimental results, demonstrating consistency with the data. In addition, the relationship between the B/Mo signal intensity ratio and the relative amount of ablated material, calculated by calibration-free LIBS (CF-LIBS), has confirmed the validity of this approach. Based on experiments conducted using four different laser fluences, in-situ diagnostics of ultra–thin B film thickness in the 3.9–7.8 J/cm² laser fluence range is recommended. The findings of this study have demonstrated the feasibility of LIBS technology for in-situ diagnostics of ultra-thin B layers as a means of monitoring the plasma-wall interaction (PWI) in fusion devices.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"235 ","pages":"Article 107401"},"PeriodicalIF":3.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145614695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of erosion and redeposition of irradiated plasma-facing materials by high-energy particles in fusion plasma","authors":"Muhammad Imran ,&nbsp;Zhenhua Hu ,&nbsp;Fang Ding ,&nbsp;Harse Sattar ,&nbsp;Guang-Nan Luo","doi":"10.1016/j.sab.2025.107400","DOIUrl":"10.1016/j.sab.2025.107400","url":null,"abstract":"<div><div>In a fusion device, the high-energy ions and neutrals of impurities cause excessive erosion and redeposition of plasma-facing materials (PFMs) that lead to a reduction in fusion power output and strongly affect the divertor's lifespan. This study examined impurity types, concentration of chemical species, impurity distribution, and co-deposits on the plasma-facing components (PFCs). Collisional drag from plasma flow accelerates impurities to elevate the impact energies of impurity deposits. The test tiles of molybdenum (Mo), tungsten (W), and carbon (C) were exposed to fusion plasma in the Experimental Advanced Superconducting Tokamak (EAST) to investigate co-deposition and sputtering yield by high-energy particle bombardment and high heat flux. The redeposition patterns of local and global impurities on each test tile were analysed using laser-induced breakdown spectroscopy (LIBS) and scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX). The characterization of the test tiles reveals that enhanced gross erosion of the PFCs is caused by impurity entrainment. An uneven, thin layer co-deposited with W, Mo, Cu, Cr, Fe, Li, and Ti was observed on the test tiles. The observed high redeposition mitigates the migration of eroded materials and suppresses net erosion. Consequently, this phenomenon reduces core dilution and enhances the operational lifetime of plasma-facing components (PFCs).</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"235 ","pages":"Article 107400"},"PeriodicalIF":3.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145614697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Casting-solidification preparation combined with substitution-dilution algorithm for accurate EDXRF analysis of silicate rocks","authors":"Bo Wang ,&nbsp;Wenbao Jia ,&nbsp;Xiaoran Chen ,&nbsp;Kai Zeng ,&nbsp;Zhichao Zhang ,&nbsp;Qing Shan ,&nbsp;Yongsheng Ling","doi":"10.1016/j.sab.2025.107385","DOIUrl":"10.1016/j.sab.2025.107385","url":null,"abstract":"<div><div>The accurate energy-dispersive X-ray fluorescence (EDXRF) analysis of high-silica silicate rocks is notoriously challenging due to their poor cohesiveness, which prevents the formation of stable pressed pellets, and the scarcity of matrix-matched reference materials. To address these limitations, this study introduces a novel integrated methodology that synergistically combines an innovative <!--> <!-->casting-solidification preparation technique with a robust substitution-dilution quantification algorithm. The preparation method employs metallographic resin to embed powdered samples, effectively overcoming cohesion issues and producing highly homogeneous (RSD &lt; 4 %) and reproducible (RSD &lt; 5.19 %) pellets. The mathematical algorithm leverages a fundamental hyperbolic relationship between the X-ray intensity and the substitution factor, enabling highly accurate quantification of major oxides (SiO₂, Al₂O₃, K₂O, CaO) using only a single standard reference material—thereby eliminating the critical dependency on multiple matrix-matched standards. Validation against a range of certified reference materials demonstrated excellent accuracy, with relative errors for major oxides ranging from 1.53 % to 6.72 %<!--> <!-->. A comprehensive uncertainty evaluation confirmed expanded uncertainties below <!--> <!-->7.4 % at a 95 % confidence level. This integrated approach establishes a new, cost-effective, and reliable paradigm for EDXRF analysis of complex silicate materials.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"235 ","pages":"Article 107385"},"PeriodicalIF":3.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145517467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}