Article
Spectroscopy
Ryan B. Anderson, Olivier Forni, Agnes Cousin, Roger C. Wiens, Samuel M. Clegg, Jens Frydenvang, Travis S. J. Gabriel, Ann Ollila, Susanne Schroder, Olivier Beyssac, Erin Gibbons, David S. Vogt, Elise Clave, Jose-Antonio Manrique, Carey Legett, Paolo Pilleri, Raymond T. Newell, Joseph Sarrao, Sylvestre Maurice, Gorka Arana, Karim Benzerara, Pernelle Bernardi, Sylvain Bernard, Bruno Bousquet, Adrian J. Brown, Cesar Alvarez-Llamas, Baptiste Chide, Edward Cloutis, Jade Comellas, Stephanie Connell, Erwin Dehouck, Dorothea M. Delapp, Ari Essunfeld, Cecile Fabre, Thierry Fouchet, Cristina Garcia-Florentino, Laura Garcia-Gomez, Patrick Gasda, Olivier Gasnault, Elisabeth M. Hausrath, Nina L. Lanza, Javier Laserna, Jeremie Lasue, Guillermo Lopez, Juan Manuel Madariaga, Lucia Mandon, Nicolas Mangold, Pierre-Yves Meslin, Anthony E. Nelson, Horton Newsom, Adriana L. Reyes-Newell, Scott Robinson, Fernando Rull, Shiv Sharma, Justin Simon, Pablo Sobron, Imanol Torre Fernandez, Arya Udry, Dawn Venhaus, Scott M. McLennan, Richard Morris, Bethany Ehlmann
Summary: The SuperCam instrument on the Perseverance rover uses laser induced breakdown spectroscopy (LIBS) to analyze the chemical composition of targets on Mars. Preprocessing and optimization models are applied to achieve accurate quantitative results.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2022)
Article
Spectroscopy
Xiangjun Xu, Qianqian Wang, Geer Teng, Zhifang Zhao, Kai Wei
Summary: This paper proposes a polarization spectral data fusion scheme to obtain richer spectral information and improve the performance of quantitative analysis models. By analyzing the polarization effect of laser-induced coal plasma emission, a fusion model utilizing horizontal and vertical polarization spectra is established for high prediction accuracy.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2023)
Article
Chemistry, Analytical
Kun Liu, Zhiyang Tang, Ran Zhou, Wen Zhang, Qingzhou Li, Chenwei Zhu, Chao He, Ke Liu, Xiangyou Li
Summary: The resonant surface-enhanced LIBS (R-SENLIBS) method proposed in this study can improve the detection limit of lead in aqueous solutions, with superior analysis capability compared to previous methods, meeting the water quality standards of China and the World Health Organization.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2021)
Article
Chemistry, Analytical
Zhenlin Hu, Feng Chen, Deng Zhang, Yanwu Chu, Weiliang Wang, Yun Tang, Lianbo Guo
Summary: The study proposed a new CF-LIBS method (CD-SRL) utilizing self-absorption effect to directly perform calibration-free analysis, demonstrating higher quantitative accuracy and adaptability compared to traditional CF-LIBS.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Analytical
Ran Zhou, Ke Liu, Zhiyang Tang, Zhongqi Hao, Xiangyou Li, Xiaoyan Zeng
Summary: In this study, the LIBS-LIF method was introduced to determine essential micronutrient elements in soil with high accuracy and sensitivity, showing promising results for future applications in soil nutrition evaluation.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2021)
Article
Chemistry, Analytical
Kaikai Kou, Weiran Song, Weilun Gu, Jiacen Liu, Yuzhou Song, Jianxun Ji, Zongyu Hou, Zhe Wang
Summary: The multi-element detectable laser excited atomic fluorescence (LEAF) technique is a significant advancement in the analytical field with its high sensitivity and overcoming the color constraint. However, limited understanding of the universal signal enhancement mechanism hinders its further development and research. This study conducted LEAF experiments to investigate the details of the ablation process, excitation process, and coupling behavior. The findings propose new understandings, such as the ablated mass being plasma instead of just a plume and the contribution of photoexcitation to the enhanced signal.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2023)
Article
Instruments & Instrumentation
Sara Sanchez-Esteva, Maria Knadel, Rodrigo Labouriau, Gitte H. Rubaek, Goswin Heckrath
Summary: Laser-induced breakdown spectroscopy (LIBS) shows potential as an alternative method for total soil phosphorus determination, with high correlation between LIBS-P response and total phosphorus. However, sensitivity of LIBS varies significantly among soils, indicating the need for further investigation on factors influencing different soil types.
APPLIED SPECTROSCOPY
(2021)
Article
Spectroscopy
Maria Lanzinger, Dominik Huber, Virginia Merk, Stephanie Kaufmann, Michael Schuster, Natalia Ivleva
Summary: In today's industrial production, it is crucial to eliminate particle contamination in order to ensure the safety and quality of products. This study focuses on the representativeness of in-house generated aluminum reference particles to their source bulk material through quantitative element analysis. The results validate the functionality and applicability of using laser-induced breakdown spectroscopy (LIBS) for particle analysis and provide a new method for the easy generation of internal reference particles.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2023)
Article
Chemistry, Analytical
Wen Zhang, Ran Zhou, Kun Liu, Qingzhou Li, Zhiyang Tang, Chenwei Zhu, Xiangyou Li, Xiaoyan Zeng, Chao He
Summary: The use of SiO molecules for LIBS-LIMF calibration can eliminate self-absorption effects in silicon content analysis and improve sensitivity, making it a potential method for rapidly determining the silicon element in the steel industry.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2021)
Article
Environmental Sciences
Carla Pereira De Morais, Diego Victor Babos, Vinicius Camara Costa, Jordan Brizi Neris, Gustavo Nicolodelli, Milene Corso Mitsuyuki, Frederico Fabio Mauad, Stephane Mounier, Debora Marcondes Bastos Pereira Milori
Summary: Double pulse laser-induced breakdown spectroscopy (DP LIBS) has been studied for the quantitative analysis of trace elements in sediments. Different spectral treatments and calibration strategies were investigated to improve the accuracy of determinations. The developed models showed satisfactory sensitivity and precision for the quantification of these potentially toxic elements, allowing for a partial ecological risk assessment of the sediments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Chemistry, Analytical
Zhenlin Hu, Deng Zhang, Weiliang Wang, Feng Chen, Yubin Xu, Junfei Nie, Yanwu Chu, Lianbo Guo
Summary: Calibration-free LIBS (CF-LIBS) is an important element quantitative analysis method without standards, with advantages such as real-time, in-situ, on-site, single-point, and multi-elemental analysis. This review summarizes the development of CF-LIBS and discusses modified methods, variants, and applications in various fields.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2022)
Article
Spectroscopy
Zhaopeng Chen, Xin Ren, Jianjun Liu, Weiming Xu, Yizhong Zhang, Xiangfeng Liu, Qin Zhou, Wangli Chen
Summary: This article introduces the calibration method for the laser-induced breakdown spectroscopy (LIBS) of the Mars Surface Composition Detector (MarSCoDe). By using the natural gradient boosting probabilistic prediction (NGBoost) ensemble learning method, the probabilistic major element composition (PMEC) models were established and proved to be accurate and robust through testing and validation.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2022)
Article
Chemistry, Physical
Odhisea Gazeli, Dimitrios Stefas, Stelios Couris
Summary: Laser-induced breakdown spectroscopy (LIBS) is effectively used for rapid sulfur detection in organic soil samples with the assistance of multivariate analysis methods, demonstrating its applicability and efficiency through the construction of calibration curves and analysis of various statistical models.
Article
Spectroscopy
Patrick J. Gasda, Ryan B. Anderson, Agnes Cousin, Olivier Forni, Samuel M. Clegg, Ann Ollila, Nina Lanza, Jens Frydenvang, Sarah Lamm, Roger C. Wiens, Sylvestre Maurice, Olivier Gasnault, Roberta Beal, Adriana Reyes-Newell, Dorothea Delapp
Summary: The new calibration model for manganese, developed using an expanded set of standards, shows high accuracy with a Root Mean Squared Error of Prediction of 1.39 wt% MnO for the full blended model on a test set of 93 standards. The detection limit for manganese is determined to be 82 ppm, possibly as low as 27 ppm based on visual inspection of the spectra.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2021)
Article
Chemistry, Analytical
Timur F. Akhmetzhanov, Timur A. Labutin, Dmitry M. Korshunov, Alexey A. Samsonov, Andrey M. Popov
Summary: In this study, a handheld LIBS analyzer was used to quantitatively determine cerium and lanthanum in ores enriched with rare earth elements. Design of Experiment based on Latin Hypercube Sampling was employed to construct an artificial calibration set. The study showed that cerium could be accurately quantified, but lanthanum determination was affected by matrix effects. Using OREAS samples as calibration sets was suggested to optimize the online in-field monitoring of the mining process.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2023)
Article
Spectroscopy
Aleksandr S. Zakuskin, Timur A. Labutin
Summary: Knowledge of electron temperature and electron number density in laser-induced plasma is crucial for both fundamental and applied research. This paper evaluates the possibility of using wavelet denoising to preprocess Thomson scattering spectra and proposes a robust approach for plasma diagnostics. The results show that wavelet denoising outperforms FFT filtration and provides high-quality results even under low signal-to-noise ratio. The combination of wavelet denoising and nomograms approach is considered to be the most reliable way for plasma diagnostics.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2022)
Article
Environmental Sciences
Anastasia N. Drozdova, Ivan N. Krylov, Andrey A. Nedospasov, Elena G. Arashkevich, Timur A. Labutin
Summary: The East Siberian Sea is an area with high biogeochemical activity, characterized by unique dissolved organic carbon behavior and spectral distribution. Compared to the Laptev Sea, the shelf waters of the East Siberian Sea contain higher levels of protein-like and marine humic-like fluorescent substances.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Spectroscopy
T. F. Akhmetzhanov, A. N. Drozdova, A. M. Popov
Summary: The Mn/Fe ratio in ferromanganese nodules was determined using calibration-free laser-induced breakdown spectroscopy. The analysis relied on plasma parameters and analytical line intensities of manganese and iron. The ability to determine the Mn/Fe ratio in nodules of different geographic origins was demonstrated, with high accuracy and correlation to inductively coupled plasma atomic emission spectrometry.
JOURNAL OF APPLIED SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Nikolai I. Sushkov, Gabor Galbacs, Patrick Janovszky, Nikolay V. Lobus, Timur A. Labutin
Summary: This study investigates the identification methods of zooplankton species through spectroscopic analysis and computer vision techniques. The results show that spectroscopic data is more useful than photo analysis, with the best performance achieved by the combined LIBS + Raman dataset. In addition, methods like principal component analysis can effectively distinguish zooplankton species.
Article
Astronomy & Astrophysics
A. S. Zakuskin, B. G. Beglaryan, T. A. Labutin
Summary: We studied Fe and FeO emission in laser-induced plasma under reduced pressure to find the conditions matching bolide wake plasma.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Spectroscopy
A. S. Zakuskin, B. G. Beglaryan, T. A. Labutin
Summary: A scheme for the CaO molecular fluorescence was proposed and implemented, which involved transitions between the B-1 Pi and X-1 Sigma(+) electronic states. Two molecular bands were observed in the fluorescence spectra at 408.43 nm and 421 nm, with the latter being assigned to the (0, 3) transition. Selective excitation of rotational states was demonstrated, showing a shift in the fluorescence intensity maximum within the vibrational band. The proposed scheme was then used to spatially resolve the distribution of calcium oxide molecules in the laser-induced plasma.
JOURNAL OF APPLIED SPECTROSCOPY
(2023)
Article
Spectroscopy
Ivan N. Krylov, Timur A. Labutin
Summary: Interpolation of scattering areas in fluorescence spectroscopy and data modelling is commonly achieved using row-by-row interpolation, which can lead to artifacts. In this study, we proposed a penalty matrix construction method for Whittaker smoothing, which reduced the number of parameters and improved signal reconstruction. We compared Whittaker smoothing with other interpolation methods and found that it had better signal reconstruction and interpretable parameters.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Spectroscopy
I. N. Krylov, I. V. Seliverstova, T. A. Labutin
Summary: The PARAFAC canonical tensor decomposition is commonly used to recover fluorophore groups in dissolved organic matter in natural waters. However, fitting the PARAFAC model is time-consuming, especially for validation. Various strategies were explored to accelerate the PARAFAC fitting to EEM of sea waters. Optimization of a large set of hyperparameters did not significantly speed up the process, but optimizing one variable once for several iterations proved effective. The line-search strategy with extrapolation step achieved the maximum acceleration of 2.3 times, despite collinear sequential steps at certain stages of the algorithm.
JOURNAL OF APPLIED SPECTROSCOPY
(2023)
Article
Optics
B. G. Beglaryan, A. S. Zakuskin, T. A. Labutin
Summary: The optimum parameters for studying the distribution of calcium atoms in low-pressure laser-induced plasma have been determined. A nonresonant fluorescence scheme based on transitions between the 4s4p-4p2 states has been proposed and implemented for the first time. The use of pure calcium carbonate as a target for fluorescence observation and the neglect of spontaneous emission contribute to a substantial enhancement of the fluorescence signal under optimum conditions. Temperature has been shown to have a low impact on the excitation of fluorescence, allowing for spatial measurements of the lateral distribution of calcium atoms in plasma.
OPTICS AND SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Timur F. Akhmetzhanov, Andrey M. Popov
Summary: This study addresses the challenges of overlapping rare-earth elements (REEs) lines and high pairwise correlation in laser-induced breakdown spectroscopy (LIBS) analysis of ores. By using a specially designed calibration set and optimizing the selection of analytical lines, the study shows the potential of LIBS to quantify REEs in natural ores.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2022)
Article
Chemistry, Analytical
Andrey M. Popov, Timur F. Akhmetzhanov, Sergey M. Zaytsev, Anastasiya N. Drozdova, Ildar A. Kalko, Timur A. Labutin
Summary: This study investigates the application of laser-induced breakdown spectroscopy (LIBS) in oceanography. By using a prototype mobile setup with a portable laser and different detection systems, accurate determination of metal elements in marine ferromanganese nodules from the Kara Sea is achieved. The results show that LIBS has great potential for rapid onboard analysis, especially for the determination of calcium, strontium, and titanium, which offers more accurate results compared to energy-dispersive X-ray fluorescence (EDXRF).
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2022)
Article
Chemistry, Analytical
Nikolai I. Sushkov, Gabor Galbacs, Krisztian Fintor, Nikolay V. Lobus, Timur A. Labutin
Summary: This study used modern analytical techniques and chemometric techniques to analyze zooplankton organisms that accumulate lithium. The study found correlations between the elemental and molecular composition of zooplankton. By using different algorithms to process the spectra data, the study revealed correlations between lithium and potassium, carotenoids, and tryptophan. The combination of laser-induced breakdown spectroscopy and Raman spectroscopy, followed by appropriate mathematical treatment, is a convenient tool for comprehensive studies of environmental objects.
Article
Chemistry, Analytical
Timur F. Akhmetzhanov, Galina V. Pashkova, Victor M. Chubarov, Timur A. Labutin, Andrey M. Popov
Summary: This study focused on detecting five rare-earth elements in ores and nodules using two X-ray fluorescence techniques. A specially designed calibration set based on Latin hypercube sampling addressed issues of high pair-wise correlation between REE contents and significant overlapping of REE lines. Univariate and multivariate calibration models were used to quantitatively determine the content of Ce, La, and Nd, with special cases of Pr and Sm requiring the use of multivariate models.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2021)
Article
Astronomy & Astrophysics
A. M. Popov, A. A. Berezhnoy, J. Borovicka, T. A. Labutin, S. M. Zaytsev, A. Stolyarov
Summary: The study utilizes laser-induced breakdown spectra of high-purity iron recorded in high temperature and impact conditions to mimic FeO pseudo-continuum emission observed during meteor events and terrestrial night airglow. Anomalies in intensity observed at specific wavelengths and temperatures are attributed to emission of higher oxides of iron, as explained by thermodynamic and kinetic modeling of iron burning in the atmosphere.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Spectroscopy
Piyali Deb Barman, Ashok Kumar Maurya, Subhendu Ghosh, Ankit Roy, Mukul Madaan
Summary: In X-ray spectroscopic studies, K beta 1,3 lines have been used to examine the chemical states of 3d transition metals, but are not suitable for characterizing iron oxides. Instead, FeL-lines, which involve the valence shell 3d electrons, were inspected and found to provide information on the chemical states of iron. The study established a linear relationship between the chemical shift of FeL beta 1 line and spin multiplicity, allowing for the speciation of iron.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2024)
