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Effects Of Temperature And Aerosol Content On Laser Induced Breakdown Spectroscopy Detection Limits
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Book Synopsis Effects of Temperature and Aerosol Content on Laser-induced Breakdown Spectroscopy Detection Limits by : Kyle F. Kratzsch
Download or read book Effects of Temperature and Aerosol Content on Laser-induced Breakdown Spectroscopy Detection Limits written by Kyle F. Kratzsch and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
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.
Book Synopsis Aerosol Measurements with Laser-induced Breakdown Spectroscopy by : Gregg Arthur Lithgow
Download or read book Aerosol Measurements with Laser-induced Breakdown Spectroscopy written by Gregg Arthur Lithgow and published by . This book was released on 2007 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the first application, LIBS is examined as a potential method for detecting airborne biological agents. Laboratory measurements of some common biological agent simulants are compared to those of common, naturally occurring biological aerosol components (pollen and fungal spores) to determine the potential of LIBS for discriminating biological agents from natural background aerosols. In the second application, metal species in ambient particulate matter were continuously monitored during a week-long field trial. Average and temporally resolved concentrations of seven metals were measured, and individual particles containing multiple species were detected.
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 2007-10-03 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser induced breakdown spectroscopy (LIBS) is basically an emission spectroscopy technique where atoms and ions are primarily formed in their excited states as a result of interaction between a tightly focused laser beam and the material sample. The interaction between matter and high-density photons generates a plasma plume, which evolves with time and may eventually acquire thermodynamic equilibrium. One of the important features of this technique is that 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, leaf or blood) can be studied with almost equal ease. 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. The present book has been written by active specialists in this field, it includes the basic principles, the latest developments in instrumentation and the applications of LIBS . It will be useful to analytical chemists and spectroscopists as an important source of information and also to graduate students and researchers engaged in the fields of combustion, environmental science, and planetary and space exploration. * Recent research work* Possible future applications* LIBS Principles
Book Synopsis Laser-Induced Breakdown Spectroscopy by : Sergio Musazzi
Download or read book Laser-Induced Breakdown Spectroscopy written by Sergio Musazzi and published by Springer. This book was released on 2014-07-08 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the Laser-Induced Breakdown Spectroscopy (LIBS) a widely used atomic emission spectroscopy technique for elemental analysis of materials. It is based on the use of a high-power, short pulse laser excitation. The book is divided into two main sections: the first one concerning theoretical aspects of the technique, the second one describing the state of the art in applications of the technique in different scientific/technological areas. Numerous examples of state of the art applications provide the readers an almost complete scenario of the LIBS technique. The LIBS theoretical aspects are reviewed. The book helps the readers who are less familiar with the technique to understand the basic principles. Numerous examples of state of the art applications give an almost complete scenario of the LIBS technique potentiality. These examples of applications may have a strong impact on future industrial utilization. The authors made important contributions to the development of this field.
Book Synopsis Laser-induced Breakdown Spectroscopy (LIBS) and Its Application to Solution Samples by : Helen Antony Archontaki
Download or read book Laser-induced Breakdown Spectroscopy (LIBS) and Its Application to Solution Samples written by Helen Antony Archontaki and published by . This book was released on 1987 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
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.
Book Synopsis Detection and Classification of Biological Aerosol Particles Using Laser Induced Breakdown Spectroscopy, LIBS by : Anders Larsson
Download or read book Detection and Classification of Biological Aerosol Particles Using Laser Induced Breakdown Spectroscopy, LIBS written by Anders Larsson and published by . This book was released on 2012 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser-Induced Breakdown Spectroscopy with Improved Detection Sensitivity and Isotopic Discrimination by : Kyle Hartig
Download or read book Laser-Induced Breakdown Spectroscopy with Improved Detection Sensitivity and Isotopic Discrimination written by Kyle Hartig and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser-induced breakdown spectroscopy (LIBS) could be used to perform rapid, real-time, elemental, and isotopic analysis of materials relevant to nuclear forensics, safeguards, and counterproliferation. The detection sensitivity of LIBS is element dependent and the limits of detection (LODs) are higher than competing techniques used in nuclear forensics like secondary ionization mass-spectroscopy or gamma spectroscopy. LIBS non-invasiveness, small sample size requirements, and a need for minimal or no sample preparation, are the main attributes and moderately responsible for the challenges encountered when identifying and quantifying elements with this technique. Secondly, interference of the individual spectral lines in the plasma emission spectrum limit the LIBS detection selectivity and reliability. Finally, the matrix effects also limit the performance of LIBS since the emission intensity from the target element depends on not only the concentration, but also the chemical and physical properties of the matrix.In this dissertation, optimization of the characteristics of the laser pulse have been pursued and new analysis techniques were introduced to improve LIBS detection sensitivity and isotope selectivity. Optimization of the laser pulse shape through simple and more complex pulse shaping techniques was shown to influence the overall LIBS emission intensity, signal-to-background, and the ionization state of the plasma. Similarly, 2.05 m femtosecond (fs) laser pulses were observed to produce a plasma of lower temperature and density compared to 800 nm fs laser pulses, resulting in an increased signal-to-background ratio (SBR). Ab initio mod- eling was applied to show that the reduced plasma temperature and density for longer wavelength laser pulses leads to the increased SBR.As an extension of LIBS, laser ablation molecular isotopic spectrometry (LAMIS) was adapted for use with fs-laser pulses. Expansion of the LAMIS technique to isotopic analysis of uranium using fs-laser pulses and the capability to per- form this analysis at remote distances through the combination of fs-filamentation LAMIS (F2LAMIS) was demonstrated. The molecular isotope shift for the UO emission band at 593.57 nm was measured to be ~0.05 0.007 nm, which is twice as large as the largest known atomic/ionic isotope shift of 0.025 nm for the 424.43 nm U II emission line. Spatio-temporally resolved spectral and shad- owgraphic measurements showed that the UO species expanded at a slower rate compared to the uranium atomic species.The bulk matrix composition of the sample was observed to affect the measured LIBS and LAMIS signal, and resulted in a reduced analytic capability of the technique for both elemental and isotopic measurement. In specific examples, the measured LIBS emission intensity for an analyte of interest was observed to increase with the presence of a second element of greater concentration, which is the inverse of what is expected for many other analytical techniques. The increase in the analyte emission intensity was studied via temporally resolved plasma and emission diagnostics and through the use of ab initio modeling.The results of this work provide new insights that will aid the development of LIBS/LAMIS as a technique capable of not just elemental analysis, but also isotopic analysis at standoff distances in real time, which is important to remote sensing applications in nuclear forensics, safeguards, and counterproliferation.
Book Synopsis Laser Induced Breakdown Spectroscopy for Detection of Organic Residues by : Christopher G. Brown
Download or read book Laser Induced Breakdown Spectroscopy for Detection of Organic Residues written by Christopher G. Brown and published by . This book was released on 2011 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser Induced Breakdown Spectroscopy (LIBS) is showing great potential as an atomic analytical technique. With its ability to rapidly analyze all forms of matter, with little-to-no sample preparation, LIBS has many advantages over conventional atomic emission spectroscopy techniques. With the maturation of the technologies that make LIBS possible, there has been a growing movement to implement LIBS in portable analyzers for field applications. In particular, LIBS has long been considered the front-runner in the drive for stand-off detection of trace deposits of explosives. Thus there is a need for a better understanding of the relevant processes that are responsible for the LIBS signature and their relationships to the different system parameters that are helping to improve LIBS as a sensing technology. This study explores the use of LIBS as a method to detect random trace amounts of specific organic materials deposited on organic or non-metallic surfaces. This requirement forces the limitation of single-shot signal analysis. This study is both experimental and theoretical, with a sizeable component addressing data analysis using principal components analysis to reduce the dimensionality of the data, and quadratic discriminant analysis to classify the data. In addition, the alternative approach of 'target factor analysis' was employed to improve detection of organic residues on organic substrates. Finally, a new method of characterizing the laser-induced plasma of organics, which should lead to improved data collection and analysis, is introduced. The comparison between modeled and experimental measurements of plasma temperatures and electronic density is discussed in order to improve the present models of low-temperature laser induced plasmas.
Book Synopsis Laser-based Diagnostic Techniques in Single Particle Analysis by : Patricia Anne Dalyander
Download or read book Laser-based Diagnostic Techniques in Single Particle Analysis written by Patricia Anne Dalyander and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Up until relatively recently, most analysis techniques have relied on obtaining the bulk characteristics of a system of interest, metaphorically focusing on understanding the forest with little concern for individual trees. Increasingly it has become apparent that in many applications such an approach is inadequate, as the entire system may be more accurately characterized by a small portion of its components, even to the level of single particles, whose relative importance to the whole may be grossly underestimated by statistical averaging with bulk properties. The detection limits required for such an analysis combined with the frequent need for real-time, in situ data makes optical techniques uniquely suited for many of these applications. In the present study, three spectroscopic methodologies are investigated for the analysis of single particles entrained in fluids. In the first component, a laser-induced plasma interacting with a single aerosol particle is numerically modeled to consider the effects of finite particle evaporation and diffusion rates on measured parameters. Although these processes have previously been considered to occur instantaneously for applications with Laser-Induced Breakdown Spectroscopy (LIBS) and therefore not influence the observed signal, this investigation shows that the local properties surrounding the aerosol particle-derived analyte vary from the bulk condition and thereby emphasizes the need for care to be taken in data acquisition timing and interpretation.
Book Synopsis Detection of Lead, Cadmium, and Zinc Aerosols Using Laser-induced Breakdown Spectroscopy by : Marcelino Essien
Download or read book Detection of Lead, Cadmium, and Zinc Aerosols Using Laser-induced Breakdown Spectroscopy written by Marcelino Essien and published by . This book was released on 1985 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser-induced Breakdown Spectroscopy of Liquid Aerosols and Droplet Salt Concentration Measurements by : Dana Earl Poulain
Download or read book Laser-induced Breakdown Spectroscopy of Liquid Aerosols and Droplet Salt Concentration Measurements written by Dana Earl Poulain and published by . This book was released on 1996 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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
Book Synopsis Laser Induced Breakdown Spectroscopy of Gases and Aerosols by : Emily Mehgan Gibb
Download or read book Laser Induced Breakdown Spectroscopy of Gases and Aerosols written by Emily Mehgan Gibb and published by . This book was released on 2004 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
