Journal of Analytical Atomic Spectrometry最新文献

{"title":"Study of the layer thickness of multilayer sample by the LIBS method based on ablation rate correction†","authors":"Shiming Liu, Cong Li, Qi He, Huace Wu, Xiaohan Hu, Boliang Men, Ding Wu, Ran Hai, Xingwei Wu and Hongbin Ding","doi":"10.1039/D4JA00208C","DOIUrl":"10.1039/D4JA00208C","url":null,"abstract":"<p >As a remote and <em>in situ</em> diagnostic technique for the first wall of tokamaks, laser-induced breakdown spectroscopy (LIBS) has shown promising potential for depth profile analysis of deposition layers on plasma-facing components (PFCs). However, due to the complexity of the interface of deposition layers and the limitations of laser profiles, achieving an accurate deposition layer thickness is often more difficult for an <em>in situ</em> LIBS system in tokamaks. In previous studies, a Laser Profile &amp; Interface Roughness model (LPIR model), which considers the laser beam profile and interface roughness factors, has been developed to identify the interface of deposition layers. In this study, the effect of ablation rates from different materials in the deposited layers on the accuracy of their thickness has been investigated. The depth profiling of a Ni–Cu–Ni–Cu multilayer sample, which has a four-layer structure, has been carried out using the LIBS technique under different focusing conditions as well as various laser pulse energies, with the pressure maintained at 10<small>⁻⁵</small> mbar. The LPIR model was used to reconstruct the depth distribution profile of the Ni–Cu–Ni–Cu multilayer sample and quantify the interfacial positions of the deposited layers. A layer thickness correction method for multilayer sample is proposed based on the dependence of the ablation rates of different layers on laser fluence. The correction ability has been evaluated based on the relative errors between the calculated and the scanning electron microscope (SEM) values for different layer thicknesses. The relative errors of the corrected layer thicknesses are all significantly improved, and the accuracy of the layer thicknesses has been substantially improved. The proposed method will not only help us better understand the LIBS depth profiling of multilayer samples under different laser fluence conditions, but it will also further improve the accuracy of the layer thickness analysis of multilayer samples. This result is of positive significance for the application of <em>in situ</em> LIBS diagnostics in plasma–wall interaction (PWI) studies.</p>","PeriodicalId":81,"journal":{"name":"Journal of Analytical Atomic Spectrometry","volume":" 10","pages":" 2363-2373"},"PeriodicalIF":3.1,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141946736","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":"Enhancing multi-type coal quality prediction accuracy with fusion spectra and classification models using NIRS and XRF techniques","authors":"Zhedong Zhang, Jiaxuan Li, Rui Gao, Yang Zhao, Yan Zhang, Lei Zhang, Zefu Ye, Zhujun Zhu, Peihua Zhang, Wangbao Yin and Suotang Jia","doi":"10.1039/D4JA00193A","DOIUrl":"10.1039/D4JA00193A","url":null,"abstract":"<p >The various analytical indices of coal are important criteria for evaluating the quality of commercial coal. Coals of different qualities exhibit different physical and chemical characteristics in their utilization. In the case of multiple coal types, the spectral characteristics of different coals may overlap within certain wavelength ranges, or be affected by interference or noise from other coal types, leading to low accuracy in coal quality prediction. Rapid and accurate coal quality testing is of great significance for improving industrial production efficiency and enhancing corporate profitability. This study employs near-infrared spectroscopy (NIRS) and X-ray fluorescence spectroscopy (XRF) combined techniques to explore the accuracy and feasibility of predicting coal quality based on coal type classification models. In terms of classification algorithms, coal samples are identified and classified using Support Vector Machine (SVM) based on fusion spectra. Regarding the modeling approach, Partial Least Squares (PLS) is utilized to establish both an overall model for all coal samples and individual classification models corresponding to each coal type. The results show that the precision, accuracy, recall, and <em>F</em><small>₁</small> score of this classification algorithm reached 96.49%, 97.50%, 95.83%, and 96.41%, respectively. The determination coefficients (<em>R</em><small>²</small>) for the classification model's predictions of ash, volatile matter, and sulfur in coal quality indicators reached 0.992, which represents improvements of 1.85%, 5.31%, and 10.10% over the overall model. The root mean square errors of prediction (RMSE<small>_P</small>) for these indicators were 0.062, 0.080, and 0.008, showing reductions of 0.24%, 0.68%, and 0.05% compared to the overall model. It indicates that the method of first identifying the coal type and then predicting coal quality indicators using the corresponding classification model can significantly improve the accuracy of coal quality detection in complex coal type scenarios.</p>","PeriodicalId":81,"journal":{"name":"Journal of Analytical Atomic Spectrometry","volume":" 10","pages":" 2433-2442"},"PeriodicalIF":3.1,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141946737","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":"Investigating the effects of laser wavelengths and other ablation parameters on the detection of biogenic elements and contaminants in hydroxyapatite","authors":"Aida Fazlić, Anna Faruzelová, Jakub Buday, Lenka Michlovská, Lucy Vojtová, Pavlína Modlitbová, Pavel Pořízka and Jozef Kaiser","doi":"10.1039/D4JA00073K","DOIUrl":"10.1039/D4JA00073K","url":null,"abstract":"<p >The main purpose of this work is to thoroughly describe sensitivity and resolution enhancement by systematically optimizing key parameters in laser-induced breakdown spectroscopy analysis. Simultaneous analysis of biogenic (C, P, Mg, and Ca) and contaminating (Pb) elements, which are commonly detected in selected biotic matrices (mammal teeth), was performed. Hydroxyapatite reference pellets were utilized as model matrices, which successfully reflect human dental tissue. The optimization involved precise adjustments of the used laser wavelengths (1064, 532, and 266 nm), relative defocus of the laser pulse, ablation pulse energies, and gate delays for collecting characteristic spectra. In addition, for Ca analysis, the signals of different ionization line types (Ca I 364.44 nm; Ca II 370.60 and 396.85 nm) were compared; in the case of Pb analysis, the limits of detection were established for each used laser wavelength, and the revealed differences were discussed in detail. We intend to demonstrate the benefits of rapid, low-cost analysis and also the importance of measurement parameters used in biotic sample testing.</p>","PeriodicalId":81,"journal":{"name":"Journal of Analytical Atomic Spectrometry","volume":" 9","pages":" 2330-2339"},"PeriodicalIF":3.1,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ja/d4ja00073k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141946738","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}

{"title":"A novel spectral standardization method capable of eliminating the influence of plasma morphology to improve LIBS performance","authors":"Deng Zhang, Zili Chen, Junfei Nie, Yanwu Chu and Lianbo Guo","doi":"10.1039/D4JA00203B","DOIUrl":"10.1039/D4JA00203B","url":null,"abstract":"<p >The poor spectral stability of laser-induced breakdown spectroscopy (LIBS) seriously affects its analytical performance, which is a key obstacle to its further development. To overcome this challenge, an improved spectral standardization method based on plasma image-spectrum fusion (ISS-PISF) was proposed in this study. This method, for the first time, considers and quantifies the influence of plasma morphology on spectral intensity based on the line-integrated intensity formula of LIBS spectra. It recognizes that the spectral fluctuations mainly stem from variations in total number density, plasma temperature, electron number density, and plasma morphology. Therefore, ISS-PISF innovatively utilizes easily accessible features from plasma images and spectra to eliminate the influence of these four plasma parameters, thereby improving the spectral stability and analytical performance of LIBS. To validate the effectiveness of this method, the spectra of aluminum alloy samples obtained under complex detection conditions simulated by varying laser energy and defocusing amount were analyzed. After correction by ISS-PISF, the <em>R</em><small>²</small> for Mg I 516.73 nm, Mn II 294.92 nm, and Si I 288.16 nm improved to 0.990, 0.976, and 0.961, and the average RMSE of the validation set decreased by 46.154%, while the average STD of the validation set decreased by 37.405%. These experimental results indicate that this study provides a simple, effective, and physically supported spectral standardization method, which contributes to the further promotion and application of LIBS.</p>","PeriodicalId":81,"journal":{"name":"Journal of Analytical Atomic Spectrometry","volume":" 10","pages":" 2402-2408"},"PeriodicalIF":3.1,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141880623","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":"Determining the sources of (sub)permil-level inaccuracy during laser ablation-MC-ICPMS boron isotope measurements of carbonates†","authors":"Douglas Coenen, David Evans, Hana Jurikova, Matthew Dumont, James Rae and Wolfgang Müller","doi":"10.1039/D4JA00154K","DOIUrl":"10.1039/D4JA00154K","url":null,"abstract":"<p >Recent developments in spatially-resolved boron isotopic analysis using laser ablation as a means of sample introduction to MC-ICPMS instruments (LA-MC-ICPMS) increasingly allow researchers to explore the spatial heterogeneity of the boron isotopic composition of a range of geochemical applications, for example in palaeoclimatology and mantle petrology. However, previous work has shown that a diffuse interference centred near <small>¹⁰</small>B, when measuring samples with a calcium-rich matrix, can significantly bias especially the measurement on <small>¹⁰</small>B, affecting the accuracy of boron isotope measurements. Although several correction approaches have yielded sufficiently accurate analyses of <em>δ</em><small>¹¹</small>B in calcium carbonate, the root cause of this interference is still not fully resolved. Here, we explore the various potential sources of inaccuracy in boron isotope measurements made using (LA-)MC-ICPMS by experimenting with dry and wet plasma conditions, in both solution and laser ablation mode (in the former case, our solution (Ca–Mg)/B ratios broadly mimic those found in natural samples). In solution mode, we find that irrespective of wet or dry plasma conditions, the introduction of a Ca-containing matrix yields a baseline up to ∼4 and ∼14 times higher around <em>m</em>/<em>z</em> ≈ 10 for wet and dry plasma conditions, respectively, compared to both a Mg-only matrix and lack of matrix. In order to explore this further, we performed mass scans around <em>m</em>/<em>z</em> ≈ 10 during laser ablation of different carbonates with varying matrix [Ca]. These show that the <em>m</em>/<em>z</em> ≈ 10 interference scales linearly with a mixture of the calcium content of the analyte matrix and <small>⁴⁰</small>Ar<small>⁴⁺</small> ion beam intensity, as previously hypothesised. Moreover, by experimenting with different plasma loading scenarios during the ablation of CaCO<small>₃</small>, <em>i.e.</em> varying laser spot sizes, we find that permil-level inaccuracies in <em>δ</em><small>¹¹</small>B may occur when the analyte ablated mass is significantly different than that of the standard used to calibrate instrumental mass bias. This is important given that we also show that different commonly-used reference materials ablate at very different rates, which illustrates the need for a careful standardisation approach irrespective of broader matrix effects when sub-permil level accuracy and precision are desirable when utilising LA-MC-ICPMS.</p>","PeriodicalId":81,"journal":{"name":"Journal of Analytical Atomic Spectrometry","volume":" 10","pages":" 2409-2420"},"PeriodicalIF":3.1,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ja/d4ja00154k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141867518","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}

{"title":"ZMT04 muscovite: a potential Paleoproterozoic reference material for 40Ar/39Ar dating†","authors":"Wan-Feng Zhang, De-Wen Zheng, Fred Jourdan, Adam Frew, Celia Mayers, Yi-Gang Xu, Huai-Yu He, Yan-Qiang Zhang, Jun-Jie Wang, Ying-De Jiang, Ming Xiao, Jun-Jie Li and Jia Zhang","doi":"10.1039/D4JA00172A","DOIUrl":"10.1039/D4JA00172A","url":null,"abstract":"<p >ZMT04 muscovite serves as a quality control reference material for K–Ar dating, with a recommended age of 1804 ± 21 Ma (2<em>σ</em>). Here, we check the homogeneity for ZMT04 muscovite and compare its age against the reference material Fish Canyon sanidine (FCs). Five sub-samples of ZMT04 muscovite were irradiated in three different reactors with different irradiation doses, analysed at varying sample masses over different time periods, and subjected to different mass spectrometric measurement procedures in two independent laboratories, which yielded consistent plateau ages with a mean of 1772.2 ± 2.7 Ma (2<em>σ</em>, MSWD = 1.30, and <em>P</em> = 0.18) and <em>R</em><small>^ZMT04</small><small>_{FCs=28.294±0.072Ma}</small> = 105.53 ± 0.25 (2sd, MSWD = 0.88, and <em>P</em> = 0.57). The single-grain results are consistent with the multi-grain stepwise heating results, indicating good reproducibility and homogeneity of <small>⁴⁰</small>Ar* and K at the single-grain level. A single grain is sufficient to yield a high precision result when the <em>J</em>-value &gt;0.01. We recommend 1 mg as the minimum sample mass to yield enough neutron-induced <small>³⁹</small>Ar signals for high-precision analysis (<em>J</em>-value &lt;0.001). Accordingly, ZMT04 muscovite can represent a reliable <small>⁴⁰</small>Ar/<small>³⁹</small>Ar dating and K–Ar dating reference material for Paleoproterozoic geological samples.</p>","PeriodicalId":81,"journal":{"name":"Journal of Analytical Atomic Spectrometry","volume":" 9","pages":" 2173-2182"},"PeriodicalIF":3.1,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141867519","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":"Correction: (LA)-MC-ICPMS/MS measurement of Sr radiogenic isotope ratios","authors":"Philippe Télouk and Vincent Balter","doi":"10.1039/D4JA90040E","DOIUrl":"10.1039/D4JA90040E","url":null,"abstract":"<p >Correction for ‘(LA)-MC-ICPMS/MS measurement of Sr radiogenic isotope ratios’ by Philippe Télouk <em>et al.</em>, <em>J. Anal. At. Spectrom.</em>, 2024, <strong>39</strong>, 879–887.</p>","PeriodicalId":81,"journal":{"name":"Journal of Analytical Atomic Spectrometry","volume":" 9","pages":" 2340-2340"},"PeriodicalIF":3.1,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ja/d4ja90040e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141867520","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}

{"title":"A novel chemical purification method for accurate Sn isotope measurement by MC-ICP-MS†","authors":"Qinyuan Qu, Wengang Liu, Wang Zheng, Benjamin Chetelat, Qingchuan Liu and Jiubin Chen","doi":"10.1039/D4JA00015C","DOIUrl":"10.1039/D4JA00015C","url":null,"abstract":"<p >The geological and environmental applications of tin (Sn) isotopes have been hindered by the shortcomings of chemical purification, as severe loss of Sn would occur during sample preparation (evaporation and re-dissolution) and column separation, triggering isotope measurement bias. In this study, we develop a novel and robust separation method to purify Sn from natural samples for accurate isotope measurements. The protocol is established by combining two chromatographic columns loaded with AG 1-X8 and AG 50W-X12 resins, and optimizing the sample evaporation and re-dissolution procedures. The method is proven to efficiently eliminate the main interferents such as Ag, Zn, Mo, Cd and Sb and results in low procedural blank (0.54 ± 0.21 ng, <em>n</em> = 3), quantitative recovery (95–102%, <em>n</em> = 32) and good external precision (<em>δ</em><small>¹²⁰</small>Sn of 0.02–0.04‰, in 55 measurements) for isotope measurement. The protocol is further applied to seven geological and environmental reference materials (BCR-2, BHVO-2, AGV-2, JG-2, AC-E, PACs-2 and GSS 7) and new values are reported for both odd (<em>δ</em><small>¹¹⁹</small>Sn and <em>δ</em><small>¹¹⁷</small>Sn) and even (<em>δ</em><small>¹²⁰</small>Sn and <em>δ</em><small>¹²²</small>Sn) Sn isotope ratios. This study demonstrates clearly the potential application of our method for studying the geochemical behaviors of Sn and its isotopes in various aspects.</p>","PeriodicalId":81,"journal":{"name":"Journal of Analytical Atomic Spectrometry","volume":" 9","pages":" 2258-2269"},"PeriodicalIF":3.1,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141779045","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 high-resolution laser multi collector ICP-MS U–Pb dating to columbite-group minerals with compositional zonation: reassessment of matrix effects among columbite-group minerals†","authors":"Shuang Yang, Liang-Liang Zhang, Rui Wang, Di-Cheng Zhu, Jin-Cheng Xie, Qing Wang and Wen-Tan Xu","doi":"10.1039/D4JA00201F","DOIUrl":"10.1039/D4JA00201F","url":null,"abstract":"<p >Columbite-group minerals (CGMs) have been widely used in U–Pb geochronological analysis of granite and pegmatite Nb–Ta deposits due to their high U and low common Pb characteristics. Due to the equivalent replacement of elements in the mineral structure and complex geological processes, CGMs often exhibit strong, local, and complex chemical zoning. Multiple types of composition zonation of CGMs can reflect the process of niobium–tantalum mineralization. However, the laser resolution of the currently established U–Pb methods cannot be used for <em>in situ</em> dating of CGMs with zonation with a width less than 20 μm. Additionally, there is no consensus on whether significant matrix effects could be observed among CGMs when nonmatrix-matched calibrations were performed. These limitations hinder the advancing understanding of niobium–tantalum differentiation and enrichment mechanisms in the formation of CGMs. In this study, we utilized the widely used geochronological reference material Coltan139 as the primary standard, established a high-resolution LA-MC-ICP-MS U–Pb analysis method using homogeneous CGM samples from the Dakalasu and Jingerquan deposits in the Altai and East Tianshan orogenic belts, Xinjiang, China. This method has a resolution of up to 10 μm. We applied this method to sample JEQ-2, which was collected from the Jingerquan Li–Be–Nb–Ta deposit and exhibited a variety of compositional zonations. Through a comparison of the ages calibrated using the ferrocolumbite Coltan139 and ferrotapiolite CT1 standards, we propose that the major matrix effect for U–Pb dating of CGMs correlates with the Ta/(Nb + Ta) ratios under small beam spot conditions. The matrix effect is likely to increase with the increase in Ta/(Nb + Ta) differences between reference materials and the samples. Furthermore, the U–Pb age results of sample JEQ-2 confirm that CGM grains with normal and oscillatory zonings are magmatic contemporaneous products. A new in-house standard material sample DKLS-27 was also reported with a reliable and stable U–Pb age for CGM U–Pb dating analysis. The <small>²⁰⁶</small>Pb/<small>²³⁸</small>U weighted mean age obtained from long-term monitoring is 250.2 ± 0.3 Ma (2 s, MSWD = 0.52, <em>n</em> = 141). This study offers a new analysis method for the fine geochronology of rare metal deposits.</p>","PeriodicalId":81,"journal":{"name":"Journal of Analytical Atomic Spectrometry","volume":" 10","pages":" 2421-2432"},"PeriodicalIF":3.1,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141779044","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":"Wavefront-enhanced laser-induced breakdown spectroscopy (WELIBS) with lasers at multi-wavelengths via crystalline quartz†","authors":"Asmaa Elhassan, Raghda Hosny El-Saeid, Rania M. Abdelazeem, Zienab Abdel-Salam and Mohamed Abdel-Harith","doi":"10.1039/D4JA00070F","DOIUrl":"10.1039/D4JA00070F","url":null,"abstract":"<p >The current work proposes developing the wavefront-enhanced laser-induced-breakdown spectroscopy (WELIBS) approach using a crystalline quartz slide instead of the crystalline silicon wafer. Such substitution widens the application of WELIBS in the UV, visible, and IR laser wavelength ranges, not only the IR, as in the case of the silicon wafer. A Shack–Hartmann wavefront sensor (SHWFS) has been used to prove the capability of the crystalline quartz slide to convert the wavefront shape from quasi-Gaussian to a flat-top one in different ranges of wavelengths. The analytical performance of the novel WELIBS arrangement with the crystalline quartz slide has been studied using a pure zinc target, which showed a pronounced enhancement in the intensity of the spectral lines (two to sixfold) compared to the conventional LIBS technique for the three laser wavelengths the IR (1064 nm), the green (532 nm), and the UV (355 nm). Furthermore, seven certified bronze alloy samples have been used to study the achieved analytical improvement of the novel WELIBS analytical performance by testing its capability of estimating the limit of detection (LOD) of different minor elements. From the WELIBS and LIBS spectra of the bronze alloys, calibration lines of Zn, Sn, and Pb have been plotted to estimate the limit of detection for each element. The LOD for WELIBS was half that of LIBS. WELIBS with the quartz slide for beam shaping is superior to WELIBS with the Si wafer since it can be used with different laser wavelengths and not only the IR and provides similar, or better, analytical enhancement than the conventional LIBS.</p>","PeriodicalId":81,"journal":{"name":"Journal of Analytical Atomic Spectrometry","volume":" 9","pages":" 2319-2329"},"PeriodicalIF":3.1,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141779049","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}