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Development Of Laser Ablation Single Particle Inductively Coupled Plasma Mass Spectrometry Methods For The Analysis Of Multi Elemental Nanoparticles In On Solid Supports
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Book Synopsis Development of Laser Ablation Single Particle Inductively Coupled Plasma Mass Spectrometry Methods for the Analysis of Multi-elemental Nanoparticles In/on Solid Supports by : Timothy Ronald Holbrook
Download or read book Development of Laser Ablation Single Particle Inductively Coupled Plasma Mass Spectrometry Methods for the Analysis of Multi-elemental Nanoparticles In/on Solid Supports written by Timothy Ronald Holbrook and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Solids by Laser Ablation Inductively Coupled Plasma Mass Spectrometry by : David Brian Aeschliman
Download or read book Analysis of Solids by Laser Ablation Inductively Coupled Plasma Mass Spectrometry written by David Brian Aeschliman and published by . This book was released on 2003 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation manuscript concentrates on methods to improve the utility of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) as a rapid and accurate technique for quantitative analysis, forensic matching, and source attribution of solid samples. A solution calibration method for LA-ICP-MS is described that does not require matrix-matched solid standards or prior knowledge of sample composition. Desolvated particles from a microconcentric nebulizer and particles ablated from a localized position on a solid sample are mixed and introduced simultaneously to the ICP-MS. The transport of sample particulates from the ablation cell is measured online with piezoelectric microbalance to provide signal normalization. The relative accuracy of the quantitative analysis of NIST 612 glass and NIST 1264a steel is 3% and 12%, respectively, except for the elements Pb and Bi in steel. LA-ICP-MS is also used with principal components analysis (PCA) to simplify routine comparisons of forensic materials without time-consuming and destructive sample dissolution. The relative concentrations of trace elements in a solid sample are examined to provide a "fingerprint" composition that can be used for definitive identification and source matching of the material. Residue samples are matched to bulk materials using PCA. Variation of laser focus and PCA are also used to diagnose the presence and severity of elemental fractionation, which remains the most significant limitation for accurate quantitative analyses by LA-ICP-MS. High-speed photographs and video of an ICP are used to examine the validity of solution calibration for LA-ICP-MS and to study the trajectories, lifetimes, and emission behavior of particles traversing the plasma under a variety of conditions. No red emission clouds from YO are visible in the ICP when a 20-[mu]L min−1 nebulizer is used to spray a 2000 ppm aqueous yttrium solution, suggesting that the wet droplets from this nebulizer desolvate almost completely before entering the ICP. These desolvated particles appear to atomize and ionize like the small dry particulates from laser ablation. However, some large ablated particulates are observed to fly through the plasma intact, possibly contributing to elemental fractionation. Nevertheless, accurate calibration results using solution standards can be obtained for elements not affected by fractionation.
Book Synopsis Current Developments in Laser Ablation-inductively Coupled Plasma-mass Spectrometry for Use in Geology, Forensics, and Nuclear Nonproliferation Research by :
Download or read book Current Developments in Laser Ablation-inductively Coupled Plasma-mass Spectrometry for Use in Geology, Forensics, and Nuclear Nonproliferation Research written by and published by . This book was released on 2008 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation focused on new applications of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). The diverse fields that were investigated show the versatility of the technique. In Chapter 2, LA-ICP-MS was used to investigate the rare earth element (REE) profiles of garnets from the Broken Hill Deposit in New South Wales, Australia. The normalized REE profiles helped to shed new light on the formation of deposits of sulfide ores. This information may be helpful in identifying the location of sulfide ore deposits in other locations. New sources of metals such as Pg, Zn, and Ag, produced from these ores, are needed to sustain our current technological society. The application of LA-ICP-MS presented in Chapter 3 is the forensics analysis of automotive putty and caulking. The elemental analysis of these materials was combined with the use of Principal Components Analysis (PCA). The PCA comparison was able to differentiate the automotive putty samples by manufacturer and lot number. The analysis of caulk was able to show a differentiation based on manufacturer, but no clear differentiation was shown by lot number. This differentiation may allow matching of evidence in the future. This will require many more analyses and the construction of a database made up of many different samples. The 4th chapter was a study of the capabilities of LA-ICP-MS for fast and precise analysis of particle ensembles for nuclear nonproliferation applications. Laser ablation has the ability to spatially resolve particle ensembles which may contain uranium or other actinides from other particles present in a sample. This is of importance in samples obtained from air on filter media. The particle ensembles of interest may be mixed in amongst dust and other particulates. A problem arises when ablating these particle ensembles directly from the filter media. Dust particles other than ones of interest may be accidentally entrained in the aerosol of the ablated particle ensemble. This would cause the analysis to be skewed. The use of a gelatin substrate allows the ablation a particle ensemble without disturbing other particles or the gelatin surface. A method to trap and ablate particles on filter paper using collodion was also investigated. The laser was used to dig through the collodion layer and into the particle ensemble. Both of these methods fix particles to allow spatial resolution of the particle ensembles. The use of vanillic acid as a possible enhancement to ablation was also studied. A vanillic acid coating of the particles fixed on top of the gelatin substrate was not found to have any positive effect on either signal intensity or precision. The mixing of vanillic acid in the collodion solution used to coat the filter paper increased ablation signal intensity by a factor of 4 to 5. There was little effect on precision, though. The collodion on filter paper method and the gelatin method of resolving particles have shown themselves to be possible tools in fighting proliferation of nuclear weapons and material. Future applications of LA-ICP-MS are only limited by the imagination of the investigator. Any material that can be ablated and aerosolized is a potential material for analysis by LA-ICP-MS. Improvements in aerosol transport, ablation chamber design, and laser focusing can make possible the ablation and analysis of very small amounts of material. This may perhaps lead to more possible uses in forensics. A similar method to the one used in Chapter 3 could perhaps be used to match drug residue to the place of origin. Perhaps a link could be made based on the elements leached from the soil by plants used to make drugs. This may have a specific pattern based on where the plant was grown. Synthetic drugs are produced in clandestine laboratories that are often times very dirty. The dust, debris, and unique materials in the lab environment could create enough variance to perhaps match drugs produced there to samples obtained...
Book Synopsis Inductively Coupled Plasma-Mass Spectrometry by : Howard E. Taylor
Download or read book Inductively Coupled Plasma-Mass Spectrometry written by Howard E. Taylor and published by Academic Press. This book was released on 2001 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: It also includes information on processing and interpreting results to obtain high-quality data.".
Book Synopsis Laser Ablation in Liquids by : Guowei Yang
Download or read book Laser Ablation in Liquids written by Guowei Yang and published by CRC Press. This book was released on 2012-02-22 with total page 1166 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the fundamental concepts and physical and chemical aspects of pulsed laser ablation of solid targets in liquid environments and its applications in the preparation of nanomaterials and fabrication of nanostructures. The areas of focus include basic thermodynamic and kinetic processes of laser ablation in liquids, and its applic
Book Synopsis Direct Multielemental Analysis of Solid Samples Using Laser Ablation Inductively Coupled Plasma Mass Spectrometry and Pulsed Radio Frequency Glow Discharge Mass Spectrometry by : Joseph C. Miller
Download or read book Direct Multielemental Analysis of Solid Samples Using Laser Ablation Inductively Coupled Plasma Mass Spectrometry and Pulsed Radio Frequency Glow Discharge Mass Spectrometry written by Joseph C. Miller and published by . This book was released on 2003 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plasma Source Mass Spectrometry by : J Grenville Holland
Download or read book Plasma Source Mass Spectrometry written by J Grenville Holland and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atomic spectrometry has exciting new bio-analytical horizons open to it, principally through the developments in the capabilities of ICP-MS coupled with the inventiveness of experimentalists. This is reflected in the use of the technique for ion-, capillary electrophoresis-, liquid- and gas-chromatographic separation in biological applications, as reported in this book. Traditional (environmental, semiconductor, geological and clinical) applications are also well represented. In addition, recent and future developments in sample introduction devices, multicollector sector, reaction cells and collision cells instruments, as well as co-existence, divergence and potential convergence of atomic and biomolecular mass spectrometries are discussed. Reflecting the current state of practical ICP-MS and drawing together the latest developments in the field, Plasma Source Mass Spectrometry: Current Trends and Future Developments is ideal for university researchers and laboratory practitioners. It will be of interest to all those involved in the development and application of this technique.
Book Synopsis Practical Guide to ICP-MS by : Robert Thomas
Download or read book Practical Guide to ICP-MS written by Robert Thomas and published by CRC Press. This book was released on 2003-12-11 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a field insider with more than 20 years of experience in the development and application of atomic spectroscopy instrumentation, the Practical Guide to ICP-MS offers key concepts and guidelines in a reader-friendly format that is superb for those with limited knowledge of the technique. This reference discusses the fundamental principles, analytical advantages, practical capabilities, and overall benefits of ICP-MS. It presents the most important selection criteria when evaluating commercial ICP-MS equipment and the most common application areas of ICP-MS such as the environmental, semiconductor, geochemical, clinical, nuclear, food, metallurgical, and petrochemical industries.
Book Synopsis ICP-MS and Trace Element Analysis as Tools for Better Understanding Medical Conditions by :
Download or read book ICP-MS and Trace Element Analysis as Tools for Better Understanding Medical Conditions written by and published by Elsevier. This book was released on 2022-05-25 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: ICP-MS and Trace Element Analysis as Tools for Better Understanding Medical Conditions, Volume 97 discusses trace elements and how they play an important role in biological functions and metabolism in the human body. Chapters cover Biomedical analysis by ICP-MS: A focus on single cell, Advanced statistical tools and machine learning applied to trace element analysis associated with medical conditions, ICP-MS as a tool to understand trace element homeostasis in neurological disorders, High-precision isotopic analysis of essential mineral elements – possibilities for medical diagnosis and prognosis, Exploring ICP-MS as a versatile technique: From imaging to chemical speciation, and more. Discusses the latest diagnosis/pathologies using ICP-MS analysis Covers metals, isotopes and metalorganic species for medical conditions Includes ICP-MS-based techniques
Book Synopsis Studies of Single-Particle Inductively Coupled Plasma Mass Spectrometry by : WAN-WAAN. LEE
Download or read book Studies of Single-Particle Inductively Coupled Plasma Mass Spectrometry written by WAN-WAAN. LEE and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Studies of Single-particle Inductively Coupled Plasma Mass Spectrometry" by Wan-waan, Lee, 李雲鬟, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: The transient ICP-MS intensity of a particle depends on the rates of particle vaporization and ionization and diffusion of the analyte atoms in the ICP. In this study, a mathematical model has been developed to investigate the relative contribution of these three processes on the relative ICP-MS intensity along the ICP central channel. Gold nanoparticles were used as the model particles. The input parameters of the computer model are optimized by comparing the calculated depth profiles of ICP-MS intensity of the model particles to the experimental profiles. The computer model previously developed in this research group has been updated in this study. The rates of vaporization of the model particles in the ICP by both heat-transfer-limited and mass-transfer-limited vaporization mechanisms are compared for each time step. The slower process is used to calculate the number of gold atoms vaporized in that time step. The degree of ionization of the vaporized gold atoms is then calculated using Saha equation. The ionization temperature was determined experimentally by comparing the intensity ratio of Cd and I. The profile of ionization temperature is sigmoidal and gives more accurate estimation of the ICP-MS intensity than the hypothetical linear ionization temperature profile used in the previous study. The vaporized atoms diffused rapidly to form a plume. The number of ions in the ion plume that passes through the sampler cone is calculated as the ICP-MS intensity. The effect of gas dynamics is taken into consideration by introducing a new parameter of effective aperture of the sampler cone. The previous model suffers from underestimation of the number of ions sampled by using the physical diameter of the sampler cone in ion sampling calculation. With the improvements on the ionization and diffusion calculation, the shape and relative sensitivity of the simulated depth profiles of ICP-MS intensity of the model gold nanoparticles agree with the experimental results. Vaporization and ionization are the main processes in the computer model that determine the ion production rate. The limiting process for the smaller particles is ionization while that for the larger particles is vaporization. The ionization-limiting process gives the linear calibration curves. The depth profiles of ICP-MS intensity for the particles and standard solutions are also identical and the sensitivity ratio of solution to particles is constant along the sampling depth for the smaller particles. The particle diameter at which the limiting process changes from ionization-limiting to vaporization-limiting is the transition diameter. The calibration curves roll off for particle diameter larger than the transition diameter. The linear dynamic range of the calibration curves, or the transition diameter, is dependent on molecular weight, density, ionization potential, and boiling point of the particles. The transition diameter also depends on the ICP forward power and carrier gas flow rate. High gas flow rate and low power are preferred for larger linear dynamic range. Particles within the linear dynamic range can be calibrated using standard solution with the sensitivity ratio between solution and particle corrected. DOI: 10.5353/th_b5387953 Subjects: Inductively coupled plasma mass spectrometry
Book Synopsis Laser-Induced Breakdown Spectroscopy in Biological, Forensic and Materials Sciences by : Gábor Galbács
Download or read book Laser-Induced Breakdown Spectroscopy in Biological, Forensic and Materials Sciences written by Gábor Galbács and published by Springer Nature. This book was released on 2022-12-13 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive overview of recent advances in the area of laser-induced breakdown spectroscopy (LIBS), focusing on its application to biological, forensic and materials sciences. LIBS, which was previously mainly used by physicists, chemists and in the industry, has now become a very useful tool with great potential in these other fields as well. LIBS has a unique set of characteristics including minimal destructiveness, remote sensing capabilities, potential portability, extremely high information content, trace analytical sensitivity and high throughput. With its content divided into two main parts, this book provides not only an introduction to the analytical capabilities and methodology, but also an overview of the results of recent applications in the above fields. The application-oriented, multidisciplinary approach of this work is also reflected in the diversity of the expert contributors. Given its breadth, this book will appeal to students, researchers and professionals interested in solving analytical/diagnostic/material characterization tasks with the application of LIBS.
Book Synopsis Fundamental and Methodological Investigations for the Improvement of Elemental Analysis by Inductively Coupled Plasma Mass Soectrometry by :
Download or read book Fundamental and Methodological Investigations for the Improvement of Elemental Analysis by Inductively Coupled Plasma Mass Soectrometry written by and published by . This book was released on 2012 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes a variety of studies meant to improve the analytical performance of inductively coupled plasma mass spectrometry (ICP-MS) and laser ablation (LA) ICP-MS. The emission behavior of individual droplets and LA generated particles in an ICP is studied using a high-speed, high frame rate digital camera. Phenomena are observed during the ablation of silicate glass that would cause elemental fractionation during analysis by ICP-MS. Preliminary work for ICP torch developments specifically tailored for the improvement of LA sample introduction are presented. An abnormal scarcity of metal-argon polyatomic ions (MAr) is observed during ICP-MS analysis. Evidence shows that MAr+ ions are dissociated by collisions with background gas in a shockwave near the tip of the skimmer cone. Method development towards the improvement of LA-ICP-MS for environmental monitoring is described. A method is developed to trap small particles in a collodion matrix and analyze each particle individually by LA-ICP-MS.
Book Synopsis Encyclopedia of Spectroscopy and Spectrometry by :
Download or read book Encyclopedia of Spectroscopy and Spectrometry written by and published by Academic Press. This book was released on 2016-09-22 with total page 3716 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third edition of the Encyclopedia of Spectroscopy and Spectrometry, Three Volume Set provides authoritative and comprehensive coverage of all aspects of spectroscopy and closely related subjects that use the same fundamental principles, including mass spectrometry, imaging techniques and applications. It includes the history, theoretical background, details of instrumentation and technology, and current applications of the key areas of spectroscopy. The new edition will include over 80 new articles across the field. These will complement those from the previous edition, which have been brought up-to-date to reflect the latest trends in the field. Coverage in the third edition includes: Atomic spectroscopy Electronic spectroscopy Fundamentals in spectroscopy High-Energy spectroscopy Magnetic resonance Mass spectrometry Spatially-resolved spectroscopic analysis Vibrational, rotational and Raman spectroscopies The new edition is aimed at professional scientists seeking to familiarize themselves with particular topics quickly and easily. This major reference work continues to be clear and accessible and focus on the fundamental principles, techniques and applications of spectroscopy and spectrometry. Incorporates more than 150 color figures, 5,000 references, and 300 articles for a thorough examination of the field Highlights new research and promotes innovation in applied areas ranging from food science and forensics to biomedicine and health Presents a one-stop resource for quick access to answers and an in-depth examination of topics in the spectroscopy and spectrometry arenas
Book Synopsis Calibration of Laser Ablation Inductively Coupled Plasma Mass Spectrometry Using Dried Solution Aerosols for the Quantitative Analysis of Solid Samples by :
Download or read book Calibration of Laser Ablation Inductively Coupled Plasma Mass Spectrometry Using Dried Solution Aerosols for the Quantitative Analysis of Solid Samples written by and published by . This book was released on 1999 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inductively coupled plasma mass spectrometry (ICP-MS) has become the method of choice for elemental and isotopic analysis. Several factors contribute to its success. Modern instruments are capable of routine analysis at part per trillion levels with relative detection limits in part per quadrillion levels. Sensitivities in these instruments can be as high as 200 million counts per second per part per million with linear dynamic ranges up to eight orders of magnitude. With standards for only a few elements, rapid semiquantitative analysis of over 70 elements in an individual sample can be performed. Less than 20 years after its inception ICP-MS has shown to be applicable to several areas of science. These include geochemistry, the nuclear industry, environmental chemistry, clinical chemistry, the semiconductor industry, and forensic chemistry. In this introduction, the general attributes of ICP-MS will be discussed in terms of instrumentation and sample introduction. The advantages and disadvantages of current systems are presented. A detailed description of one method of sample introduction, laser ablation, is given. The paper also gives conclusions and suggestions for future work. Chapter 2, Quantitative analysis of solids by laser ablation inductively coupled plasma mass spectrometry using dried solution aerosols for calibration, has been removed for separate processing.
Book Synopsis Plasma Source Mass Spectrometry by : J Grenville Holland
Download or read book Plasma Source Mass Spectrometry written by J Grenville Holland and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a snapshot of the current state-of-the-art of the understanding of the fundamentals of ICPMS, instrumental development, methods development, spectral interpretation and applications. It covers a diverse range of topics including: bioanalytical applications (immunoassay, state of phosphorylation, metallo-drugs); environmental applications (drinking water, groundwater, seawater, speciation); reaction cells and collision cells (theory and applications); archaeology; laser ablation; isotope ratio analysis; and the performance, characterization and applications of multicollector instruments. Written by international contributors who emphasize their current perceptions and understanding of the subject, Plasma Source Mass Spectrometry: Applications and Emerging Technologies offers a current perspective on elemental analysis by plasma source mass spectrometry that is not to be found elsewhere. Researchers and professionals in many areas will welcome this book, particularly those in the fields of bioanalytical, environmental and geological chemistry.
Book Synopsis Determination of Trace Elements by : Zeev B. Alfassi
Download or read book Determination of Trace Elements written by Zeev B. Alfassi and published by John Wiley & Sons. This book was released on 2008-07-11 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: The best way to determine trace elements! This easy-to-use handbook guides the reader through the maze of all modern analytical operations. Each method is described by an expert in the field. The book highlights the advantages and disadvantages of individual techniques and enables pharmacologists, environmentalists, material scientists, and food industry to select a judicious procedure for their trace element analysis.
Book Synopsis Handbook of Inductively Coupled Plasma Mass Spectrometry by : K. E. Jarvis
Download or read book Handbook of Inductively Coupled Plasma Mass Spectrometry written by K. E. Jarvis and published by Blackie Academic and Professional. This book was released on 1992 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
