Quantitative Laser Induced Breakdown Spectroscopy Data Using Peak Area Step Wise Regression Analysis

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Quantitative Laser-induced Breakdown Spectroscopy Data Using Peak Area Step-wise Regression Analysis

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (727 download)

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Book Synopsis Quantitative Laser-induced Breakdown Spectroscopy Data Using Peak Area Step-wise Regression Analysis by :

Download or read book Quantitative Laser-induced Breakdown Spectroscopy Data Using Peak Area Step-wise Regression Analysis written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The ChemCam instrument on the Mars Science Laboratory (MSL) will include a laser-induced breakdown spectrometer (LIBS) to quantify major and minor elemental compositions. The traditional analytical chemistry approach to calibration curves for these data regresses a single diagnostic peak area against concentration for each element. This approach contrasts with a new multivariate method in which elemental concentrations are predicted by step-wise multiple regression analysis based on areas of a specific set of diagnostic peaks for each element. The method is tested on LIBS data from igneous and metamorphosed rocks. Between 4 and 13 partial regression coefficients are needed to describe each elemental abundance accurately (i.e., with a regression line of R2> 0.9995 for the relationship between predicted and measured elemental concentration) for all major and minor elements studied. Validation plots suggest that the method is limited at present by the small data set, and will work best for prediction of concentration when a wide variety of compositions and rock types has been analyzed.

Laser Induced Breakdown Spectroscopy (LIBS)

Author : Vivek K. Singh
Publisher : John Wiley & Sons
ISBN 13 : 1119758424
Total Pages : 2162 pages
Book Rating : 4.1/5 (197 download)

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Book Synopsis Laser Induced Breakdown Spectroscopy (LIBS) by : Vivek K. Singh

Download or read book Laser Induced Breakdown Spectroscopy (LIBS) written by Vivek K. Singh and published by John Wiley & Sons. This book was released on 2023-03-14 with total page 2162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser Induced Breakdown Spectroscopy (LIBS) Essential resource covering the field of LIBS, with respect to its fundamentals, established and novel applications, and future prospects Laser Induced Breakdown Spectroscopy (LIBS), presents in two comprehensive volumes a thorough discussion of the basic principles of the method, including important recently available data which can lead to a better characterization of the LIBS plasma. This extensive work contains detailed discussions on the lasers, spectrometers, and detectors that can be used for LIBS apparatuses and describes various instrumentation, ranging from basic setups to more advanced configurations. As a modern resource, the work includes the newest advances and capabilities of LIBS instruments, featuring the recent developments of Dual-Pulse LIBS, Femtosecond LIBS, and Micro-LIBS as well as their applications. Throughout, the contributions discuss the analytical capabilities of the method in terms of detection limits, accuracy, and precision of measurements for a variety of samples. Lastly, an extensive range of applications is presented, including food technology, environmental science, nuclear reactors, nanoscience and nanotechnology, and biological and biomedical developments. Sample topics covered within the work include: iagnostics of laser induced plasma (LIP): LIBS plasma and its characteristics, factors affecting the LIBS plasma, methods of enhancing LIBS sensitivity, and LTE/non-LTE plasmas Instrumental developments in LIBS: light collection system and spectral detection systems, handheld LIBS, deep sea LIBS, and industrial sorters and analyzers Femtosecond laser ablation: laser-matter interaction, laser absorption, energy transport, ablation mechanisms and threshold, and plasma characterization Micro-analysis and LIBS imaging: microjoule laser sources, scaling libs to microjoule energies, micrometer scaling, advanced applications, and future prospects Spectroscopic and analytical scientists working with LIBS will find this wide-ranging reference immensely helpful in developing LIBS instrumentation and applications. Researchers and students in natural sciences and related programs of study will be able to use the work to acquire foundational knowledge on the method and learn about cutting-edge advancements being made in the field.

Handbook of Laser-Induced Breakdown Spectroscopy

Author : David A. Cremers
Publisher : John Wiley & Sons
ISBN 13 : 1118567366
Total Pages : 452 pages
Book Rating : 4.1/5 (185 download)

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Book Synopsis Handbook of Laser-Induced Breakdown Spectroscopy by : David A. Cremers

Download or read book Handbook of Laser-Induced Breakdown Spectroscopy written by David A. Cremers and published by John Wiley & Sons. This book was released on 2013-03-15 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Starting from fundamentals and moving through a thorough discussion of equipment, methods, and techniques, the Handbook of Laser-Induced Breakdown Spectroscopy provides a unique reference source that will be of value for many years to come for this important new analysis method. The authors, with a total of over 60 years of experience in the LIBS method, use a combination of tutorial discussions ranging from basic principles up to more advanced descriptions along with extensive figures and photographs to clearly explain topics addressed in the text. In this second edition, chapters on the use of statistical analysis and advances in detection of weapons of mass destruction have been added. Tables of data related to analysis with LIBS have been updated. The Handbook of Laser-Induced Breakdown Spectroscopy, Second Edition: provides a thorough but understandable discussion of the basic principles of the method based on atomic emission spectroscopy, including recently available data leading to better characterization of the LIBS plasma; presents a discussion of the many advantages of the method along with limitations, to provide the reader a balanced overview of capabilities of the method; describes LIBS instrumentation ranging from basic set-ups to more advanced configurations; presents a comprehensive discussion of the different types of components (laser, spectrometers, detectors) that can be used for LIBS apparatuses along with suggestions for their use, as well as an up-to-date treatment of the newest advances and capabilities of LIBS instruments; presents the analytical capabilities of the method in terms of detection limits, accuracy, and precision of measurements for a variety of different sample types; discusses methods of sampling different media such as gases, liquids, and solids; presents an overview of some real-world applications of the method, with new emphasis on sampling of biologically and physically dangerous materials; provides an up-to-date list of references to LIBS literature along with the latest detection limits and a unique list of element detection limits using a uniform analysis method; provides annotated examples of LIBS spectra which can serve as references for the general reader and will be especially useful for those starting out in the field.

Remote Compositional Analysis

Author : Janice L. Bishop
Publisher : Cambridge University Press
ISBN 13 : 110718620X
Total Pages : 655 pages
Book Rating : 4.1/5 (71 download)

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Book Synopsis Remote Compositional Analysis by : Janice L. Bishop

Download or read book Remote Compositional Analysis written by Janice L. Bishop and published by Cambridge University Press. This book was released on 2019-11-28 with total page 655 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive overview of the spectroscopic, mineralogical, and geochemical techniques used in planetary remote sensing.

Laser-Induced Breakdown Spectroscopy

Author : Reinhard Noll
Publisher : Springer Science & Business Media
ISBN 13 : 3642206689
Total Pages : 547 pages
Book Rating : 4.6/5 (422 download)

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Book Synopsis Laser-Induced Breakdown Spectroscopy by : Reinhard Noll

Download or read book Laser-Induced Breakdown Spectroscopy written by Reinhard Noll and published by Springer Science & Business Media. This book was released on 2012-01-14 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive source of the fundamentals, process parameters, instrumental components and applications of laser-induced breakdown spectroscopy (LIBS). The effect of multiple pulses on material ablation, plasma dynamics and plasma emission is presented. A heuristic plasma modeling allows to simulate complex experimental plasma spectra. These methods and findings form the basis for a variety of applications to perform quantitative multi-element analysis with LIBS. These application potentials of LIBS have really boosted in the last years ranging from bulk analysis of metallic alloys and non-conducting materials, via spatially resolved analysis and depth profiling covering measuring objects in all physical states: gaseous, liquid and solid. Dedicated chapters present LIBS investigations for these tasks with special emphasis on the methodical and instrumental concepts as well as the optimization strategies for a quantitative analysis. Requirements, concepts, design and characteristic features of LIBS instruments are described covering laboratory systems, inspections systems for in-line process control, mobile systems and remote systems. State-of-the-art industrial applications of LIBS systems are presented demonstrating the benefits of inline process control for improved process guiding and quality assurance purposes.

Laser-induced Breakdown Spectroscopy (LIBS) and Digital Image Processing for Pigment Analysis

Author : Rosemarie Chinni
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (116 download)

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Book Synopsis Laser-induced Breakdown Spectroscopy (LIBS) and Digital Image Processing for Pigment Analysis by : Rosemarie Chinni

Download or read book Laser-induced Breakdown Spectroscopy (LIBS) and Digital Image Processing for Pigment Analysis written by Rosemarie Chinni and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this project is to show how laser-induced breakdown spectroscopy (LIBS) and digital imaging processing can be used for indirect dating, authentication, and identification of oil paint pigments. Ten oil paint pigments from traditional and modern palettes were used for the analysis. Since synthetic paints (modern) were not available prior to the 19 century, the presence of a synthetic paint could allow for determination of whether the artwork was conserved in the past or it if was a forgery. LIBS and digital imaging processing were used to analyze the oil paint pigments in both pure form and binary mixture form. In LIBS, a laser pulse is focused on a surface and this focused pulse heats, ablates, atomizes, and ionizes the surface material. This causes the formation of a plasma and the light emitted by the plasma is collected, spectrally resolved, and detected. Elements contained in the sample can be identified by their distinctive spectral signatures. LIBS can provide both qualitative and quantitative results. It has many applications from space to defense including metal sorting, explosive and fissile material detection, lead in paint determination, heavy metal contamination in soil, identification of cultural heritage objects, etc. For this part of the study, the data was taken on pure and binary mixtures using ten shot accumulation analysis. The data was analyzed to determine what spectral emission lines could be used to uniquely determine one pigment from another. The pure and mixture pigments in single and multilayer samples were analyzed with image processing technology and algorithms. The digital images were used to create image histograms. Using the image histogram, the peak location was used to determine if differences among the pure and binary mixture pigments existed and whether unique peak locations in the histograms of the pure pigments or mixture pigments were seen.

Laser Induced Breakdown Spectroscopy

Author : Andrzej W. Miziolek
Publisher : Cambridge University Press
ISBN 13 : 1139458310
Total Pages : 615 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis Laser Induced Breakdown Spectroscopy by : Andrzej W. Miziolek

Download or read book Laser Induced Breakdown Spectroscopy written by Andrzej W. Miziolek and published by Cambridge University Press. This book was released on 2006-09-07 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a comprehensive reference explaining the fundamentals of the LIBS phenomenon, its history and its fascinating applications across eighteen chapters written by recognized leaders in the field. This book will be of significant interest to researchers in chemical and materials analysis within academia and industry.

Quantitative Study of Laser-induced Breakdown Spectroscopy for Equivalence Ratio Measurement in Laminar Premixed Methane-air Flames

Download Quantitative Study of Laser-induced Breakdown Spectroscopy for Equivalence Ratio Measurement in Laminar Premixed Methane-air Flames PDF Online Free

Author : Alex Zimmerman
Publisher :
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Quantitative Study of Laser-induced Breakdown Spectroscopy for Equivalence Ratio Measurement in Laminar Premixed Methane-air Flames by : Alex Zimmerman

Download or read book Quantitative Study of Laser-induced Breakdown Spectroscopy for Equivalence Ratio Measurement in Laminar Premixed Methane-air Flames written by Alex Zimmerman and published by . This book was released on 2006 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Guide to Laser-induced Breakdown Spectroscopy

Author : Pablo A. Foster
Publisher :
ISBN 13 : 9781536189940
Total Pages : 173 pages
Book Rating : 4.1/5 (899 download)

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Book Synopsis A Guide to Laser-induced Breakdown Spectroscopy by : Pablo A. Foster

Download or read book A Guide to Laser-induced Breakdown Spectroscopy written by Pablo A. Foster and published by . This book was released on 2020 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This compilation focuses on laser-induced breakdown spectroscopy, a technique that provides a versatile qualitative and quantitative analysis of any sample. The authors present perspectives on the current trends in the use of laser-induced breakdown spectroscopy for insulation condition monitoring. A guide to laser-induced breakdown spectroscopy as a classification tool is provided, along with combinations of well-established classification algorithms with laser-induced breakdown spectroscopy and their implementation schemes"--

Single Variable and Multivariate Analysis of Remote Laser-Induced Breakdown Spectra for Prediction of Rb, Sr, Cr, Ba, and V in Igneous Rocks

Download Single Variable and Multivariate Analysis of Remote Laser-Induced Breakdown Spectra for Prediction of Rb, Sr, Cr, Ba, and V in Igneous Rocks PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (16 download)

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Book Synopsis Single Variable and Multivariate Analysis of Remote Laser-Induced Breakdown Spectra for Prediction of Rb, Sr, Cr, Ba, and V in Igneous Rocks by :

Download or read book Single Variable and Multivariate Analysis of Remote Laser-Induced Breakdown Spectra for Prediction of Rb, Sr, Cr, Ba, and V in Igneous Rocks written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser-induced breakdown spectroscopy (LIBS) will be employed by the ChemCam instrument on the Mars Science Laboratory rover Curiosity to obtain UV, VIS, and VNIR atomic emission spectra of surface rocks and soils. LIBS quantitative analysis is complicated by chemical matrix effects related to abundances of neutral and ionized species in the resultant plasma, collisional interactions within plasma, laser-to-sample coupling efficiency, and self-absorption. Atmospheric composition and pressure also influence the intensity of LIBS plasma. These chemical matrix effects influence the ratio of intensity or area of a given emission line to the abundance of the element producing that line. To compensate for these complications, multivariate techniques, specifically partial least-squares regression (PLS), have been utilized to predict major element compositions (>1 wt.% oxide) of rocks, PLS methods regress one or multiple response variables (elemental concentrations) against multiple explanatory variables (intensity at each pixel of the spectrometers). Because PLS utilizes all available explanatory variable and eliminates multicollinearity, it generally performs better than univariate methods for prediction of major elements. However, peaks arising from emissions from trace elements may be masked by peaks of higher intensities from major elements. Thus in PLS regression, wherein a correlation coefficient is determined for each elemental concentration at each spectrometer pixel, trace elements may show high correlation with more intense lines resulting from optical emissions of other elements. This could result in error in predictions of trace element concentrations. Here, results of simple linear regression (SLR) and multivariate PLS-2 regression for determination of trace Rb, Sr, Cr, Ba, and V in igneous rock samples are compared. This study focuses on comparisons using only line intensities rather than peak areas to highlight differences between SLR and PLS.

Application of Laser-induced Breakdown Spectroscopy (LIBS) for Quantitative Elemental Analysis as an Add-on-to the Lab-at-Rig System

Author : Steven Tassios
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis Application of Laser-induced Breakdown Spectroscopy (LIBS) for Quantitative Elemental Analysis as an Add-on-to the Lab-at-Rig System by : Steven Tassios

Download or read book Application of Laser-induced Breakdown Spectroscopy (LIBS) for Quantitative Elemental Analysis as an Add-on-to the Lab-at-Rig System written by Steven Tassios and published by . This book was released on 2018 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: “The Lab-at-RigÒ (LARÒ) system was developed and a prototype built within the framework of the Opportunity Fund Lab-at-RigÒ version 1 Project. The product was commercialised to Imdex, and a commercial product is now being developed by REFLEX (Imdex Group). The first version of the LARÒ system will deliver combined chemistry and mineralogy based on portable X-ray Fluorescence (pXRF) and quantitative X-ray Diffraction (QXRD). The scope of Module 2 of the LAR Futures Project was to explore laser-induced breakdown spectroscopy (LIBS) as an additional sensor for future versions of the LARÒ system, as well as to develop and deploy workflows to obtain high quality LIBS data customised to meet LARÒ applications in exploration and mining. LIBS can yield information on elemental composition including essential light elements not currently measured by air-based pXRF detectors (e.g., H, Be, Li, C, N, Na, and Mg at low levels). This technique can greatly complement LARÒ system version 1 in delivering light element concentrations and having the potential to analyse for some trace elements problematic for pXRF such as Au, PGEs, and REEs. A 3-year long research program was undertaken to evaluate LIBS as an analytical technique for analysis of geological materials. We also undertook the development of a custom-built software, GeoLIBS®, for processing of the LIBS data and quantification of the results"--Executive summary.

Laser-Induced Breakdown Spectroscopy

Author : Jagdish P. Singh
Publisher : Elsevier
ISBN 13 : 0128188308
Total Pages : 624 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Laser-Induced Breakdown Spectroscopy by : Jagdish P. Singh

Download or read book Laser-Induced Breakdown Spectroscopy written by Jagdish P. Singh and published by Elsevier. This book was released on 2020-06-02 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser-Induced Breakdown Spectroscopy, Second Edition, covers the basic principles and latest developments in instrumentation and applications of Laser Induced Breakdown Spectroscopy (LIBS). Written by active experts in the field, it serves as a useful resource for analytical chemists and spectroscopists, as well as graduate students and researchers engaged in the fields of combustion, environmental science, and planetary and space exploration. This fully revised second edition includes several new chapters on new LIBS techniques as well as several new applications, including flame and off-gas measurement, pharmaceutical samples, defense applications, carbon sequestration and site monitoring, handheld instruments, and more. LIBS has rapidly developed into a major analytical technology with the capability of detecting all chemical elements in a sample, of real- time response, and of close-contact or stand-off analysis of targets. It does not require any sample preparation, unlike conventional spectroscopic analytical techniques. Samples in the form of solids, liquids, gels, gases, plasmas, and biological materials (like teeth, leaves, or blood) can be studied with almost equal ease. This comprehensive reference introduces the topic to readers in a simple, direct, and accessible manner for easy comprehension and maximum utility. Covers even more applications of LIBS beyond the first edition, including combustion, soil physics, environment, and life sciences Includes new chapters on LIBS techniques that have emerged in the last several years, including Femtosecond LIBS and Molecular LIBS Provides inspiration for future developments in this rapidly growing field in the concluding chapter

Calibration Methods of Laser-Induced Breakdown Spectroscopy

Author : Hongbo Fu
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)

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Book Synopsis Calibration Methods of Laser-Induced Breakdown Spectroscopy by : Hongbo Fu

Download or read book Calibration Methods of Laser-Induced Breakdown Spectroscopy written by Hongbo Fu and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser-induced breakdown spectroscopy (LIBS) has gained great attention over the past two decades due to its many advantages, such as needless sample preparation, capability of remote measurement and fast multielement simultaneous analysis. However, because of its inherent uncertainty features of plasma, it is still a big challenge for LIBS community worldwide to realize high sensitivity and accurate quantitative analysis. Currently, many chemometric analytical methods have been applied to LIBS calibration analysis, including univariate regression, multivariate regression, principal component regression (PCR), partial least squares regression (PLSR) and so on. In addition, appropriate sample and spectral pretreatment can effectively improve the analytical performance (id est, limit of detection (LOD), accuracy and repeatability) of LIBS. In this chapter, we briefly summarize the progress of these calibration methods and their applications on LIBS and provide our recommendations.

Application of Laser-induced Breakdown Spectroscopy (LIBS) to the Expansion of Strontium (Sr) Analysis Options and to Used Engine Oil

Author : Ayed M. Binzowaimil
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (133 download)

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Book Synopsis Application of Laser-induced Breakdown Spectroscopy (LIBS) to the Expansion of Strontium (Sr) Analysis Options and to Used Engine Oil by : Ayed M. Binzowaimil

Download or read book Application of Laser-induced Breakdown Spectroscopy (LIBS) to the Expansion of Strontium (Sr) Analysis Options and to Used Engine Oil written by Ayed M. Binzowaimil and published by . This book was released on 2021 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser-induced breakdown spectroscopy (LIBS) is a technique that allows quantitative and qualitative analysis of many materials. In this study, the LIBS analysis options for strontium mixture powders is expanded by increasing the number of usable strontium atomic transitions to avoid incorrect results due to spectral congestion or high strontium concentrations. The research employs double-sided tape affixed to a glass slide to hold the sample where the powder is poured onto one surface of the tape and excess dust that has not adhered is removed. This method minimizes the sample quantity needed and keeps the sample on the slide during experimentation, which also reduces costs. Herein, LIBS was used to detect and quantify the level of metal concentrations in used engine oil samples to provide valuable information about the composition of the selected material in a liquid sample. Data were obtained using multivariate analysis to develop calibration curves using LIBS spectra, which was employed for the quantification of the elements Al, Ca, Fe, Mg, and Mn. The relationship between the peak intensity of the metals in new engine oil samples and the metal concentrations in used engine oil samples were analyzed to minimize the matrix effect and the interference of element lines after which the atomic emission observed in LIBS spectra of used engine oil and new engine oil were compared. C2 molecular band emissions were also used to determine the degree of the engine oil degradation. Next, calibration models were developed for samples with high species concentrations. A partial least squares regression model was developed for calibration models to overcome matrix effect problems of some lines of each metal. This research successfully used the LIBS technique to determine the degree of engine oil degradation. This study established that used engine oil analysis using the LIBS technique can be utilized to maintain engines in good condition and to prevent engine failure. This paper presents the key findings and conclusions regarding the application of LIBS. Finally, although this technique shows many benefits and reliable results, challenges remain in terms of matrix effects, spectral pre-processing, model calibration, and instrumentation.

Material Characterization Using Laser-induced Breakdown Spectroscopy

Author : Chet Raj Bhatt
Publisher :
ISBN 13 :
Total Pages : 153 pages
Book Rating : 4.:/5 (14 download)

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Book Synopsis Material Characterization Using Laser-induced Breakdown Spectroscopy by : Chet Raj Bhatt

Download or read book Material Characterization Using Laser-induced Breakdown Spectroscopy written by Chet Raj Bhatt and published by . This book was released on 2018 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser-induced breakdown spectroscopy (LIBS) has been established as a rapid, in situ, and real-time spectroscopic analytical technique for material characterization. It is very handy for the study of all kinds of materials irrespective of their state. After being used for a Mars mission, LIBS has gained global attention and many scientific researches are investigating its applications. The main objective of this dissertation is to study the possibility of using laser spectroscopic sensing techniques for material characterization and if possible, to develop methodologies. Studying molecular emission spectra for elemental analysis is a relatively new trend in the spectroscopic field. Molecular emission from SrCl and SrO observed in LIBS spectra were analyzed and compared with atomic emission from Sr. Calibration models were developed using both molecular bands and atomic spectral peaks. The determination of nutritional elements in crops, vegetables, and fruits is very important to evaluate their nutritional status. The LIBS technique was applied to identify the nutritional elements present in cauliflower and broccoli, and to evaluate the difference between organic and conventional vegetables in terms of nutritional elements. Principal component analysis (PCA) and one-to-one comparison using Student's t-test were employed for discrimination between organic and conventional vegetable flowers. Early iron and steel production in the state of Pennsylvania (United States) mostly utilized blast furnaces that were operated by charcoal as a primary fuel, followed by anthracite, then coke. The process left behind a by-product known as blast furnace slag. Blast furnace slag, non-metallic in nature, appears to have various industrial applications. LIBS was used for the analysis of charcoal blast furnace slags and qualitative as well as quantitative analyses were demonstrated. To evaluate the possibility of using the LIBS technique to detect and quantify rare earth elements, three consecutive studies were executed. Firstly, pure oxides of six rare earth elements were studied and then real samples directly taken from natural ores were analyzed. In the third step, two rare earth elements (Eu and Yb) in aqueous solutions were studied by underwater LIBS and the pressure effect on the plasma emission is discussed.

Laser Induced Breakdown Spectroscopy for Elemental Process Monitoring of Slurry Streams

Author : James Dudley Winefordner
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.3/5 (126 download)

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Book Synopsis Laser Induced Breakdown Spectroscopy for Elemental Process Monitoring of Slurry Streams by : James Dudley Winefordner

Download or read book Laser Induced Breakdown Spectroscopy for Elemental Process Monitoring of Slurry Streams written by James Dudley Winefordner and published by . This book was released on 2000 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: The goal of this research program was to develop the method of laser-induced breakdown spectroscopy (LIBS) for applications in the phosphate industry. This would include rapid elemental analysis for P, Mg, Si and Fe in materials at various stages of phosphate mining and processing, using off-line, at-line and on-line measurement approaches. Several experimental systems were developed and evaluated. A research instrument with a high resolution spectrometer and gated, intensified CCD detector was used for initial fundamental studies.

Laser-induced Breakdown Spectrometry

Author : Yong-Ill Lee
Publisher : Nova Publishers
ISBN 13 : 9781560728399
Total Pages : 194 pages
Book Rating : 4.7/5 (283 download)

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Book Synopsis Laser-induced Breakdown Spectrometry by : Yong-Ill Lee

Download or read book Laser-induced Breakdown Spectrometry written by Yong-Ill Lee and published by Nova Publishers. This book was released on 2000 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: When the output from a pulsed laser is forced onto a small spot of a sample, optically induced plasma, called laser-induced plasma (LIP) is formed at the surface. The plasma is formed when the laser power density exceeds the breakdown threshold value of the surface. The plasma can be used in sampling but is proposed as a source for atomic emission spectrometry (AES). In this case the technique is referred to as laser induced breakdown (emission) spectrometry (LIBS). The spectrally and temporally resolved detection and subsequent determination of the specific atomic emission reveals analytical information about the elemental composition of the sample, including solids, liquids and gases. This book is devoted to the analytical technique of laser-induced breakdown spectrometry. An introduction covering some basic principles of atomic emission spectrometry, analytical performance characteristics, and a comparison to more conventional techniques provides background information for the reader. The book is then conveniently divided into three parts: the first part described the instrumentation required and options available, the second part on fundamental studies of the laser plasma, and the third part on applications. Finally the future development of LIBS is presented.