Spectrochimica Acta Part B: Atomic Spectroscopy最新文献_第8页

Barium isotopic analysis of geological reference materials by MC-ICP-MS MC-ICP-MS分析地质标准物质钡同位素

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-11 DOI: 10.1016/j.sab.2025.107185

Shunrong Ma , Guilin Han , Qian Zhang , Jinke Liu , Ziyang Ding , Ye Zhao

{"title":"Barium isotopic analysis of geological reference materials by MC-ICP-MS","authors":"Shunrong Ma , Guilin Han , Qian Zhang , Jinke Liu , Ziyang Ding , Ye Zhao","doi":"10.1016/j.sab.2025.107185","DOIUrl":"10.1016/j.sab.2025.107185","url":null,"abstract":"<div><div>Barium (Ba) isotopes have been developed as a valuable tracer for chemical weathering, marine biogeochemical processes, and riverine Ba input to the ocean. To facilitate inter-laboratory data comparisons, it is essential to measure Ba isotope ratios of widely available reference materials. We presented 21 geological reference materials, most of which are new stream sediment Ba isotope reference materials in this study. Purification of synthetic solutions and rock samples with different Ba concentrations and matrix compositions, showed similar elution curves with recoveries close to 100 %. The long-term reproducibility for δ<sup>138/134</sup>Ba measurements was ≤0.07 ‰ (2SD). The results indicated that the Ba isotope ratios of AGV-2, BCR-2, BHVO-2, GSP-2, RGM-2, GSS-2, GSR-1, GSR-2 and GSR-5 were in good agreement within analytical uncertainties with previously published data. The δ<sup>138/134</sup>Ba values of sediment materials ranged from −0.31 ± 0.06 ‰ to 0.03 ± 0.07 ‰.With the exception of one stream sediment from a carbonate tributary, all analyzed sediment reference materials exhibited significant homogeneity in Ba isotopic composition, with an average δ<sup>138/134</sup>Ba of 0.01 ± 0.06 ‰, which was in excellent agreement with the upper continental crust (0.00 ± 0.05 ‰) and the bulk silicate earth (0.07 ± 0.08 ‰). This dataset of reference materials in this study provides the basis for data quality assurance and later inter-laboratory comparison of Ba isotope analyses.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"228 ","pages":"Article 107185"},"PeriodicalIF":3.2,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642448","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}

引用次数: 0

Study of the discharge mode transition in a Ne-flexible micro-tube plasma (FμTP) ne柔性微管等离子体（FμTP）放电模式跃迁的研究

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-11 DOI: 10.1016/j.sab.2025.107180

Caiyan Tian , Luisa Speicher , Hao Song , Norman Ahlmann , Sebastian Brandt , Guanghui Niu , Joachim Franzke

{"title":"Study of the discharge mode transition in a Ne-flexible micro-tube plasma (FμTP)","authors":"Caiyan Tian , Luisa Speicher , Hao Song , Norman Ahlmann , Sebastian Brandt , Guanghui Niu , Joachim Franzke","doi":"10.1016/j.sab.2025.107180","DOIUrl":"10.1016/j.sab.2025.107180","url":null,"abstract":"<div><div>Not only Helium and Argon but also Neon, Krypton, and Xenon can be used as plasma gas for a discharge applied for soft ionization with similar ionization efficiency, although it is clear that each of the excited and even ionized states of Xe is lower than the ion energy of N<sub>2</sub><sup>+</sup> or H<sub>3</sub>O<sup>+</sup>. In this work, the discharge behavior of these plasmas both inside and outside of the capillary was investigated to study the mechanisms of soft ionization. Two discharge modes were found. In He- and Ne<sub>2.0 kV</sub> -FμTP, the ionization wave of N<sub>2</sub><sup>+</sup> is mainly responsible for the propagation of excitation and ionization inside the capillary while the ionization wave of noble gas ions plays the role in Ar-, Kr- and Xe-FμTP. With an increase of the applied voltage, Ne<sub>2.5 kV</sub> -FμTP fulfils characteristics of both categories. All the measured ionization waves stop in the vicinity of the capillary outlet. For all plasmas, the propagation of excitation wave is tracked in ambient surrounding, which hints that an ionization wave is propagating outside the capillary. It is assumed that ions species of air components such as N<sub>2</sub><sup>+</sup>, O<sub>2</sub><sup>+</sup> and H<sub>3</sub>O<sup>+</sup> are generated in the ambient surrounding. The ionization wave of these ions continues supporting the propagation of the excitation wave.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"228 ","pages":"Article 107180"},"PeriodicalIF":3.2,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629465","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}

引用次数: 0

Spectral calibration for atmospheric particles analysis under non-precise focusing conditions using LIBS combined with transfer learning 利用LIBS结合迁移学习的非精确聚焦条件下大气粒子分析光谱校准

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-07 DOI: 10.1016/j.sab.2025.107171

Yu Ding , Qiang Tan , Jianan Xu , Ao Hu , Meiling Zhao , Xiangchu Li , Yan Shu , Xinxin Liu

{"title":"Spectral calibration for atmospheric particles analysis under non-precise focusing conditions using LIBS combined with transfer learning","authors":"Yu Ding , Qiang Tan , Jianan Xu , Ao Hu , Meiling Zhao , Xiangchu Li , Yan Shu , Xinxin Liu","doi":"10.1016/j.sab.2025.107171","DOIUrl":"10.1016/j.sab.2025.107171","url":null,"abstract":"<div><div>Elemental analysis of atmospheric particulate matter is crucial for air-pollution research. However, the dispersed nature of these particles can lead to variations in the laser-focusing positions, which cause fluctuations in the laser-induced breakdown spectroscopy spectral data. In this study, a transfer-learning approach called transfer component analysis (TCA) is introduced to reduce the impact of spectral-data fluctuations on quantitative-analysis model predictions. First, dictionary learning combined with logistic regression is used to select the effective spectral data for which the laser successfully interacts with the particles. Second, TCA is used to migrate the data of pellet and dispersed atmospheric particles. Using partial least squares regression (PLSR), a TCA-PLSR model is established. The results indicate that the TCA-PLSR model significantly enhances the prediction performance, with test set coefficient of determination (R<sub>P</sub><sup>2</sup>), root mean square error (RMSE<sub>P</sub>), and mean relative error (MRE<sub>P</sub>) values of 0.9869, 60.33, and 0.1005, respectively. Compared with the PLSR model, R<sub>P</sub><sup>2</sup> improved by 55.05 %, RMSE<sub>P</sub> decreased by 81.09 %, and MRE<sub>P</sub> decreased by 82.68 %. This method effectively detects metal concentrations in atmospheric particles and offers a scientific basis for air-pollution monitoring.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"228 ","pages":"Article 107171"},"PeriodicalIF":3.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143592475","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}

引用次数: 0

Development of inductively coupled plasma tandem mass spectrometric method for the determination of cadmium in tumorous stem mustard (Brassica juncea var. tumida Tsen et Lee) using N2O as reaction gas 以N2O为反应气体电感耦合等离子体串联质谱法测定肿瘤芥菜（Brassica juncea var. tumida Tsen et Lee）中镉

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-06 DOI: 10.1016/j.sab.2025.107170

Bo Jiang , Lin Chen , Zi-yang Yi , Bo-ping Hui , Qing-xia Lin , Zhen-peng Bin , Li-na Lin , Run-li Che , Chun-mei Nie , Jianhua Huang

{"title":"Development of inductively coupled plasma tandem mass spectrometric method for the determination of cadmium in tumorous stem mustard (Brassica juncea var. tumida Tsen et Lee) using N2O as reaction gas","authors":"Bo Jiang , Lin Chen , Zi-yang Yi , Bo-ping Hui , Qing-xia Lin , Zhen-peng Bin , Li-na Lin , Run-li Che , Chun-mei Nie , Jianhua Huang","doi":"10.1016/j.sab.2025.107170","DOIUrl":"10.1016/j.sab.2025.107170","url":null,"abstract":"<div><div>This work proposed a novel method to determine trace levels of Cd in tumorous stem mustard (TSM) using inductively coupled plasma tandem mass spectrometry (ICP-MS/MS). In the MS/MS mode, N<sub>2</sub>O was used as a reaction gas to eliminate spectral interference and optimize the analysis conditions. The accuracy and precision of the proposed method were evaluated by analysis of spinach leaves (SRM 1570a) as standard reference material and by comparing the obtained results with those achieved using sector field ICP-MS (SF-ICP-MS). The limit of detection (LOD) of Cd was in the range of 0.83–5.64 ng L<sup>−1</sup>, and the LOD of <sup>114</sup>Cd with the highest sensitivity was as low as 1.28 ng L<sup>−1</sup>. At a 95 % confidence level, no significant differences were found between the results obtained via this method and SF-ICP-MS (<em>p</em> > 0.05), with relative standard deviation (RSD) of 1.4 %–2.5 %. The experimental results indicate that the developed method exhibits high sensitivity, accuracy, and reliability, making it suitable for interference-free detection of trace Cd in TSM.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"228 ","pages":"Article 107170"},"PeriodicalIF":3.2,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609922","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}

引用次数: 0

Measurement of uranium content in resin within adsorption towers in the in-situ leaching uranium process by total reflection X-ray fluorescence (TXRF) 全反射x射线荧光（TXRF）测定原位浸铀过程中吸附塔内树脂中的铀含量

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-06 DOI: 10.1016/j.sab.2025.107169

Xingyu Wang , Siyu Liao , Daqian Hei , Jiatong Li , Lian Chen , Pingkun Cai , Can Cheng

引用次数: 0

Double Pulse laser-induced breakdown spectroscopy (DP-LIBS): A Comprehensive technique Review 双脉冲激光诱导击穿光谱技术综述

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-02-28 DOI: 10.1016/j.sab.2025.107168

Muhammad Rizwan , Muhammad Sher Afgan , Seher Saleem , Kaikai Kou , Zongyu Hou , Zhe Wang

{"title":"Double Pulse laser-induced breakdown spectroscopy (DP-LIBS): A Comprehensive technique Review","authors":"Muhammad Rizwan , Muhammad Sher Afgan , Seher Saleem , Kaikai Kou , Zongyu Hou , Zhe Wang","doi":"10.1016/j.sab.2025.107168","DOIUrl":"10.1016/j.sab.2025.107168","url":null,"abstract":"<div><div>Double pulse-laser induced breakdown spectroscopy (DP-LIBS) is one of the most widely adopted variants of laser-induced breakdown spectroscopy for rapid elemental analysis. DP-LIBS is an effective way of improving the emission line intensities and increasing the analytical capabilities of conventional LIBS. We comprehensively overviewed different aspects of DP-LIBS from fundaments to applications. The key mechanisms of pre-ablation, reheating, and interpulse delay have been discussed. Different geometrical configurations for the two pulses including collinear, cross-beam, orthogonal pre-ablation, and orthogonal reheating are outlined. The pulse durations of the ablating laser have a huge impact on the ablation process, thus, the effects of the temporal settings of the laser pulse duration are explained. This includes ns-ns, fs-fs, fs-ns, and long short DP-LIBS. The impacts of double-pulse LIBS on the ablation process and analytical outcomes such as signal intensity, repeatability, ablation rate, crater and plasma size, and plasma parameters are encapsulated. Finally, several DP-LIBS applications from metal and alloy analysis and explosive detection to industrial analysis have been stipulated. DP-LIBS approach results in a notable enhancement in the emission intensity; however, repeatability is a key parameter to consider for meaningful applications. Among different temporal configurations, long-short DP-LIBS provides relatively smoother and greater interaction of the laser beam with the plasma plume and sample, hence giving a more temporally efficient energy delivery to the plasma and sample making it more suitable for intensity enhancement and signal improvement among other variants.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"227 ","pages":"Article 107168"},"PeriodicalIF":3.2,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551523","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}

引用次数: 0

Optimization of denoising approaches in the context of ultra-fast LIBS imaging 超快速LIBS成像降噪方法的优化

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-02-26 DOI: 10.1016/j.sab.2025.107167

Ruggero Guerrini , Cesar Alvarez-Llamas , Lucie Sancey , Vincent Motto-Ros , Ludovic Duponchel

{"title":"Optimization of denoising approaches in the context of ultra-fast LIBS imaging","authors":"Ruggero Guerrini , Cesar Alvarez-Llamas , Lucie Sancey , Vincent Motto-Ros , Ludovic Duponchel","doi":"10.1016/j.sab.2025.107167","DOIUrl":"10.1016/j.sab.2025.107167","url":null,"abstract":"<div><div>Laser-Induced Breakdown Spectroscopy (LIBS) has emerged as a powerful analytical tool capable of providing multi-elemental information from a single laser pulse with minimal sample preparation. This technique generates a laser-induced, transient plasma on the sample surface, whose spectral emission is analyzed to determine its elemental composition. μLIBS-Imaging, a variant offering spatially resolved elemental analysis, holds promise for applications in diverse fields such as industry, geology, forensics, and biomedicine. Our drive to go ever faster and analyze increasingly larger areas of interest in samples now compels us to use kHz lasers for this elemental imaging. Despite its potential, implementing such lasers in μLIBS-imaging would face diverse challenges mainly related to weak plasma emission and signal-to-noise ratio (SNR) degradation, particularly when applied to delicate biological samples. This paper investigates methods to enhance SNR in fast μLIBS imaging, particularly for biomedical applications. We focus on denoising techniques suitable for high-frequency laser applications, comparing methods like Savitzky-Golay smoothing, Fast Fourier Transform, wavelet-based filtering, Whittaker Filtering, and Principal Component Analysis (PCA). Our strategy optimizes denoising parameters for specific elemental emission peaks, enhancing SNR for individual elements of interest. The results demonstrate significant improvements in data quality, paving the way for more accurate and efficient elemental imaging in complex biomedical specimens.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"227 ","pages":"Article 107167"},"PeriodicalIF":3.2,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Outside Front Cover - Journal name, Cover image, Volume issue details, ISSN, Cover Date, Elsevier Logo and Society Logo if required 外部封面-期刊名称，封面图片，卷刊细节，ISSN，封面日期，爱思唯尔标志和学会标志（如果需要）

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-02-26 DOI: 10.1016/S0584-8547(25)00045-X

引用次数: 0

Monte Carlo simulations of energy dispersive X-ray fluorescence (EDXRF) of liquid and metallic samples: A comparison and experimental validation of MCNP and XRMC codes 液体和金属样品能量色散x射线荧光（EDXRF）的蒙特卡罗模拟：MCNP和XRMC代码的比较和实验验证

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-02-20 DOI: 10.1016/j.sab.2025.107157

P. Zambianchi , M. Antoniassi , F.L. Melquiades , J.K. Zambianchi

{"title":"Monte Carlo simulations of energy dispersive X-ray fluorescence (EDXRF) of liquid and metallic samples: A comparison and experimental validation of MCNP and XRMC codes","authors":"P. Zambianchi , M. Antoniassi , F.L. Melquiades , J.K. Zambianchi","doi":"10.1016/j.sab.2025.107157","DOIUrl":"10.1016/j.sab.2025.107157","url":null,"abstract":"<div><div>The present study compares numerical simulations carried out by two Monte Carlo codes, the Monte Carlo N-Particle (MCNP) and the XRMC, of Energy Dispersive X-ray fluorescence (EDXRF) excited in liquid and metallic samples. The results are validated by measurements with a laboratory-made equipment, consisting of a mini X-ray tube (Moxtek, Inc., 4 W, Ag target) and a Si PIN detector model X123 (Amptek, Inc.), configured in the usual 45°/45° geometry. The liquid sample was a multielementar stock solution from High Purity Standards containing traces of the transition metals Cu, Fe, Mn, and Zn. For the solid samples, two metallic plates of standard reference materials were used, namely, a) a rectangular plate (6.9 mm × 43.4 mm, 1.5 mm thick) made of high purity copper; and b) a steel alloy plate (Duplex 2205 CRM) containing Si, Cr, Mn, Fe, Ni, Cu and Mo in its composition. The quantitative analysis of the relative peak intensities between the simulations and experiment reveals a difference of 0.4 % to 12.3 %, depending on the elemental characteristic line and sample composition. The results show an overall very good agreement between the simulations of the MCNP and XRMC codes with the experimental spectra, making them suitable for typical EDXRF applications involving metallic samples and multielement aqueous solutions.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"227 ","pages":"Article 107157"},"PeriodicalIF":3.2,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463439","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}

引用次数: 0

General regularities in the behavior of the rare gas spectra in alternating electric fields 稀有气体谱在交变电场中行为的一般规律

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-02-20 DOI: 10.1016/j.sab.2025.107155

E.V. Koryukina

引用次数: 0