Spectrochimica Acta Part B: Atomic Spectroscopy最新文献_第2页

Analysis of impurities in NaPF6 for sodium-ion batteries by inductively coupled plasma tandem mass spectrometry

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-29 DOI: 10.1016/j.sab.2025.107199

Ping Li , Shuiai Luo , Liang Fu , Dan Sun , Song Lan , Shuchun Li

{"title":"Analysis of impurities in NaPF6 for sodium-ion batteries by inductively coupled plasma tandem mass spectrometry","authors":"Ping Li , Shuiai Luo , Liang Fu , Dan Sun , Song Lan , Shuchun Li","doi":"10.1016/j.sab.2025.107199","DOIUrl":"10.1016/j.sab.2025.107199","url":null,"abstract":"<div><div>To detect metal impurities in the electrolyte of sodium-ion batteries (sodium hexafluorophosphate, NaPF<sub>6</sub>) and ensure the performance stability and safety of sodium-ion batteries, a new strategy for identifying detrimental metal impurities is proposed. In this work, inductively coupled plasma tandem mass spectrometry (ICP-MS/MS) was used to study 12 metal impurities in NaPF<sub>6</sub>. The NaPF<sub>6</sub> sample was dissolved in ultra-pure water and directly analyzed by ICP-MS/MS, and the spectral interference was eliminated by the reaction gas mixture N<sub>2</sub>O/H<sub>2</sub> in the MS/MS mode. The analysis results were compared with the results from sector field (SF)-ICP-MS, and the accuracy and reliability of the developed method were evaluated by a spike recovery test. Under optimized conditions, the limit of detection (LOD) of analytes was in the range of 0.16–3.2 ng L<sup>−1</sup>, the spiked recovery was in the range of 94.4 %–105 %, and the relative standard deviation (RSD) was 1.3 %–4.1 %. Statistical analysis showed that, at the confidence level of 95 %, there was no significant difference between the analysis results from the developed method and SF-ICP-MS. The developed method is accurate and reliable, with good stability and high accuracy. The ICP-MS/MS method based on the N<sub>2</sub>O/H<sub>2</sub> reaction mode shows strong potential for analyzing various metal impurities in NaPF<sub>6</sub>, and can be extended to other fields with great reference value.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"229 ","pages":"Article 107199"},"PeriodicalIF":3.2,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747481","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

Online analysis of coal particle flow by laser-induced breakdown spectroscopy based on pelletized coal calibration samples and feature-based transfer learning

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-27 DOI: 10.1016/j.sab.2025.107198

Meirong Dong , Zhichun Li , Junbin Cai , Weiye Lu , Xiaoxuan Chen , Kaijie Bai , Shunchun Yao , Jidong Lu

{"title":"Online analysis of coal particle flow by laser-induced breakdown spectroscopy based on pelletized coal calibration samples and feature-based transfer learning","authors":"Meirong Dong , Zhichun Li , Junbin Cai , Weiye Lu , Xiaoxuan Chen , Kaijie Bai , Shunchun Yao , Jidong Lu","doi":"10.1016/j.sab.2025.107198","DOIUrl":"10.1016/j.sab.2025.107198","url":null,"abstract":"<div><div>The application of laser-induced breakdown spectroscopy (LIBS) for directly measuring coal particle flow is an optimal choice for the actual industrial operations. With the objective of facilitating the detection of particle flow, we established a LIBS detection system coupled with the coal particle circulation bench, which can continuously and automatically provide particle flow samples for laser ablation. A quantitative analysis method for particle flow combining feature-based transfer learning was proposed, so a dual-mode optical LIBS module was designed and integrated into this system to obtain the spectral signals from different forms of coal samples (pellet and particle flow) through the same optical configuration. The spectral characteristics and the correlation between pellet and particle flow were firstly analyzed. Then a spectral correction method based on polynomial fitting was proposed to enhance the correlation between the pellet spectra and particle flow spectra. Finally, the feature space mapping method was introduced for improving the effect of feature transfer, and the model was trained on highly stable pellet spectra to perform a direct quantitative analysis of coal particle flow. The results demonstrated that the root mean square error (RMSE) for the analysis of calorific value, volatile matter, and ash content of particle flow was 0.757 MJ/kg, 2.630 %, and 3.034 %, respectively. This work provides a practical application scheme for on-line analysis of coal particle flow.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"229 ","pages":"Article 107198"},"PeriodicalIF":3.2,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768927","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

Deuterium release from beryllium layers by laser induced plasma ablation and laser induced desorption coupled with quadrupole mass spectrometry

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-25 DOI: 10.1016/j.sab.2025.107197

Sasa-Alexandra Yehia-Alexe , Mihai Serbanescu , Paul Dinca , Bogdan Butoi , Maria Elena Zarif , Corneliu Porosnicu , Andreea Groza

{"title":"Deuterium release from beryllium layers by laser induced plasma ablation and laser induced desorption coupled with quadrupole mass spectrometry","authors":"Sasa-Alexandra Yehia-Alexe , Mihai Serbanescu , Paul Dinca , Bogdan Butoi , Maria Elena Zarif , Corneliu Porosnicu , Andreea Groza","doi":"10.1016/j.sab.2025.107197","DOIUrl":"10.1016/j.sab.2025.107197","url":null,"abstract":"<div><div>By laser induced plasma ablation and laser induced desorption methods was studied the release of deuterium atoms contained in 1 μm beryllium layers produced by thermionic vacuum arc technology combined with a plasma torch. For such purpose was used a 1053 nm nanosecond laser source with pulse duration of 10 ns, tuned in pulse energy and repetition rate, for reaching both laser induced plasma ablation and laser induced desorption regimes. The signals of the species released from the beryllium‑deuterium layers after the laser irradiation were recorded simultaneous using a high-resolution optical spectrometer and a quadrupole mass spectrometer. In the laser ablation plasma plume, optical emission bands characteristic to BeO, BeH/BeD, H<sub>2</sub>/D<sub>2</sub>, and SiO species were identified. Mass spectra analysis revealed the dependence of released deuterium atoms on laser operating parameters.</div><div>The amounts of deuterium atoms detected by quadrupole mass spectrometry at different laser pulse energies and repetition rates, were compared with the total amount of deuterium (4 × 10<sup>17</sup> D/m<sup>2</sup>) measured by Thermal Desorption Spectroscopy. The results indicated that 100 % deuterium atoms were released in the laser induced plasma ablation regime, in one second, at 1 kHz laser repetition rate, after samples exposure to 1000 laser pulses. In laser induced desorption regime, at 10 Hz laser repetition rate, the exposure to 10 laser pulses in one second, lead to 10 % deuterium atoms release, the percentage decreasing to 1 % when Be/D layers are irradiated with 3 laser pulses. A discussion on the heating effects of the laser beam, as function of its operating parameters, on the layer surface morphologies is also presented.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"229 ","pages":"Article 107197"},"PeriodicalIF":3.2,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716275","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

Post-arc electron density measurement in SF6 and SF6/CO2 mixture arcs using Thomson scattering

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-24 DOI: 10.1016/j.sab.2025.107196

Tianxiao Liu, Hao Sun, Yushi Zhang, Jianqiao Xiao, Yang Lu, Chunping Niu, Yi Wu

{"title":"Post-arc electron density measurement in SF6 and SF6/CO2 mixture arcs using Thomson scattering","authors":"Tianxiao Liu, Hao Sun, Yushi Zhang, Jianqiao Xiao, Yang Lu, Chunping Niu, Yi Wu","doi":"10.1016/j.sab.2025.107196","DOIUrl":"10.1016/j.sab.2025.107196","url":null,"abstract":"<div><div>SF<sub>6</sub> is extensively utilized in gas circuit breakers due to its superior arc-quenching capabilities. However, its strong greenhouse effect and relatively high liquefaction temperature have led to the adoption of buffering gases, such as CO<sub>2</sub>, in combination with SF<sub>6</sub>. Investigating the post-arc process in gas plasma is essential for assessing the arc-quenching performance of the gases and potential applications. Nevertheless, precise diagnostics during the post-arc phase remain challenging due to the non-equilibrium nature and poor stability of the plasma. This study developed a coherent laser Thomson scattering platform to measure the post-arc decay characteristics of gas arcs. A custom triple-grating spectrometer was incorporated to enhance the signal-to-noise ratio at low electron densities. The spatiotemporal electron density decay characteristics of pure SF<sub>6</sub> arcs under varying pressures and SF<sub>6</sub>/CO<sub>2</sub> mixed-gas arcs with different mixing ratios were examined. The results show that, during the thermal recovery phase (0–70 μs), all gas arcs exhibit substantial energy dissipation, with the electron density at the arc center decreasing by two orders of magnitude. As pressure increases, the diameter of the pure SF<sub>6</sub> arc contracts, and the central electron density initially rises. With increasing pressure, a competition emerges between chemical reactions and diffusion-convection effects as the dominant factors influencing electron dissipation. The introduction of buffering gas reduces the recombination rate of positive ions and electrons, thereby decelerating the plasma decay rate. Both the initial electron density and plasma diameter diminish with increasing SF<sub>6</sub> content in the mixture.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"229 ","pages":"Article 107196"},"PeriodicalIF":3.2,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705414","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

Photon counting with intensified charge coupled device (ICCD) – I. In-depth detector characterization

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-24 DOI: 10.1016/j.sab.2025.107194

George C.-Y. Chan

引用次数: 0

New atomic emission lines observed in ICP and dc arc near-infrared spectrum of sulfur

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-22 DOI: 10.1016/j.sab.2025.107189

Dmitry Antonov , Emmanuil Silkis , Vladimir Kolotov

引用次数: 0

Photon counting with intensified charge coupled device (ICCD) – II. Laser induced breakdown spectroscopy (LIBS) spectral measurement

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-22 DOI: 10.1016/j.sab.2025.107195

George C.-Y. Chan

{"title":"Photon counting with intensified charge coupled device (ICCD) – II. Laser induced breakdown spectroscopy (LIBS) spectral measurement","authors":"George C.-Y. Chan","doi":"10.1016/j.sab.2025.107195","DOIUrl":"10.1016/j.sab.2025.107195","url":null,"abstract":"<div><div>This study explores the application of photon counting (PC) to enhance the resolution of spectra acquired by an intensified charge-coupled device (ICCD) detector, with a focus on analytical atomic emission spectrometry using laser-induced breakdown spectroscopy (LIBS) as a use-case example. It demonstrates that, for spectra obtained with the same spectrometer–ICCD system, PC provides higher spectral resolution compared to conventional analog detector readout. This enhancement is particularly evident in the line wings of spectral peaks, facilitating better discrimination of isotopic peaks in the measured spectra. Although PC does not improve the resolution of an optical spectrometer directly, it rectifies the resolution lost caused by signal spreading in conventional ICCD analog measurement. However, similar to other counting techniques, excessive photons compromise detector linearity due to signal pileup. A correction model is proposed to mitigate the pileup effect, resulting in improved linearity and dynamic range in PC measurements. Additionally, the study reveals unexpected periodic structures in the flatfield image of the ICCD, which cause non-uniform detector gain in conventional analog as well as PC measurement modes and must be addressed for high-precision measurements.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"229 ","pages":"Article 107195"},"PeriodicalIF":3.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716274","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

Surfactant-assisted au nanostructures with Micro-hole Array sprayer for enhanced LIBS detection of trace heavy metals in water

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-20 DOI: 10.1016/j.sab.2025.107193

Jiamin Li , Kezeng Pan , Changhong Zhang , Yuanyuan Xue , Shilei Zhong , Ye Tian , Junxian Lu

{"title":"Surfactant-assisted au nanostructures with Micro-hole Array sprayer for enhanced LIBS detection of trace heavy metals in water","authors":"Jiamin Li , Kezeng Pan , Changhong Zhang , Yuanyuan Xue , Shilei Zhong , Ye Tian , Junxian Lu","doi":"10.1016/j.sab.2025.107193","DOIUrl":"10.1016/j.sab.2025.107193","url":null,"abstract":"<div><div>Heavy metal pollution threatens human health and ecosystems, and countries have established strict standards for heavy metal content in water bodies. This paper presents a new method based on micro-hole array sprayed on solid substrate enhanced laser-induced breakdown spectroscopy (MASSS-LIBS) technology and NELIBS, which enables high sensitivity and multi-element detection at the μg/L level. The method involves sequentially spraying metal nanomaterials, water samples, and surfactants onto a silicon substrate to form nanostructures that are conducive to LIBS analysis. Experimental research examined the impact of key parameters, including surfactant type and nanoparticle preparation, on signal quality. Results showed significant improvements in signal intensity and stability after forming nanostructures compared to using only Au nanoparticles. Different surfactants provided varying LIBS enhancements for heavy metals, with sodium dodecyl sulfate (SDS) demonstrating superior enhancement and stability for Pb, Cr, Cu, and Mn. Controlling nanoparticle density through spraying time for Au NPs helped manage nanostructure surface density and reduce Au nanoparticle loss, further enhancing LIBS signals. Under optimized parameters, the intensity of LIBS spectral peaks following nanostructure formation was approximately 10 times higher than that observed without nanostructures, with a stability of 6 %. The LoD for Mn reached sub-μg/L levels, while the LoD for Cu, Cr, and Pb was approximately several μg/L, demonstrating a one-order-of-magnitude improvement. In eleven quantitative inversion experiments in the low concentration range of tens of μg/L. Overall, this method shows potential as an alternative for qualitative and quantitative analyses in water quality testing.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"229 ","pages":"Article 107193"},"PeriodicalIF":3.2,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685711","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

Experimental transition probabilities and oscillator strengths of singly ionised Xenon (Xe II) in the ultraviolet. A fully statistical approach to the determination of uncertainties

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-20 DOI: 10.1016/j.sab.2025.107190

Maria Teresa Belmonte , Santiago Mar , Stevica Djurović , José Antonio Menéndez , Lazar Gavanski

{"title":"Experimental transition probabilities and oscillator strengths of singly ionised Xenon (Xe II) in the ultraviolet. A fully statistical approach to the determination of uncertainties","authors":"Maria Teresa Belmonte , Santiago Mar , Stevica Djurović , José Antonio Menéndez , Lazar Gavanski","doi":"10.1016/j.sab.2025.107190","DOIUrl":"10.1016/j.sab.2025.107190","url":null,"abstract":"<div><div>We report 92 experimental values of transition probabilities and oscillator strengths for singly ionised xenon (Xe II) in the ultraviolet region (217–385 nm), 91 of which have been measured for the first time. The transition probabilities were obtained from the analysis of spectra emitted by a plasma in partial local thermodynamic equilibrium (pLTE) generated in a pulsed-discharge lamp. The resolving power of our experimental setup is 120,000 at 380 nm. The novelty of this work lies in its use of an exponential fitting technique rather than the linear Boltzmann Plot method. We include a detailed, purely statistical analysis of the uncertainties of our new measurements, together with an in-depth explanation of our measurements to promote transparency and reproducibility. We have implemented this fully statistical approach to the calculation of the uncertainties in a code developed in our laboratory, which can be freely downloaded from our laboratory's Zenodo repository to support Open Science and help other atomic data producers to calculate the uncertainties of their measurements. The uncertainties of our new transition probabilities are smaller than 15 % for 11 % of the lines and <span><math><mo>≤</mo></math></span>30 % for 87 % of the spectral lines.</div></div>","PeriodicalId":21890,"journal":{"name":"Spectrochimica Acta Part B: Atomic Spectroscopy","volume":"229 ","pages":"Article 107190"},"PeriodicalIF":3.2,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716273","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

High-resolution spectroscopy of uranium laser-produced plasma using saturated absorption spectroscopy

IF 3.2 2区化学

Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2025-03-20 DOI: 10.1016/j.sab.2025.107191

Mathew P. Polek , Mark C. Phillips , Farhat N. Beg , Sivanandan S. Harilal

引用次数: 0