Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Fundamental Studies Of The Plasma Extraction And Ion Beam Formation Processes In Inductively Coupled Plasma Mass Spectrometry
Download Fundamental Studies Of The Plasma Extraction And Ion Beam Formation Processes In Inductively Coupled Plasma Mass Spectrometry full books in PDF, epub, and Kindle. Read online Fundamental Studies Of The Plasma Extraction And Ion Beam Formation Processes In Inductively Coupled Plasma Mass Spectrometry ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Fundamental Studies of the Plasma Extraction and Ion Beam Formation Processes in Inductively Coupled Plasma Mass Spectrometry by : Hongsen Niu
Download or read book Fundamental Studies of the Plasma Extraction and Ion Beam Formation Processes in Inductively Coupled Plasma Mass Spectrometry written by Hongsen Niu and published by . This book was released on 1994 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fundamental Studies of the Plasma Extraction and Ion Beam Formation Processes in Inductively Coupled Plasma Mass Spectrometry by :
Download or read book Fundamental Studies of the Plasma Extraction and Ion Beam Formation Processes in Inductively Coupled Plasma Mass Spectrometry written by and published by . This book was released on 1995 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fundamental and practical aspects are described for extracting ions from atmospheric pressure plasma sources into an analytical mass spectrometer. Methodologies and basic concepts of inductively coupled plasma mass spectrometry (ICP-MS) are emphasized in the discussion, including ion source, sampling interface, supersonic expansion, slumming process, ion optics and beam focusing, and vacuum considerations. Some new developments and innovative designs are introduced. The plasma extraction process in ICP-MS was investigated by Langmuir measurements in the region between the skimmer and first ion lens. Electron temperature (T{sub e}) is in the range 2000--11000 K and changes with probe position inside an aerosol gas flow. Electron density (n{sub e}) is in the range 108--101° {sup -cm }at the skimmer tip and drops abruptly to 106--108 cm−3 near the skimmer tip and drops abruptly to 106--108 cm−3 downstream further behind the skimmer. Electron density in the beam leaving the skimmer also depends on water loading and on the presence and mass of matrix elements. Axially resolved distributions of electron number-density and electron temperature were obtained to characterize the ion beam at a variety of plasma operating conditions. The electron density dropped by a factor of 101 along the centerline between the sampler and skimmer cones in the first stage and continued to drop by factors of 104--105 downstream of skimmer to the entrance of ion lens. The electron density in the beam expansion behind sampler cone exhibited a 1/z2 intensity fall-off (z is the axial position). An second beam expansion originated from the skimmer entrance, and the beam flow underwent with another 1/z2 fall-off behind the skimmer. Skimmer interactions play an important role in plasma extraction in the ICP-MS instrument.
Book Synopsis Fundamental Studies of the Extraction Process in Inductively Coupled Plasma Mass Spectrometry by : Heoungbin Lim
Download or read book Fundamental Studies of the Extraction Process in Inductively Coupled Plasma Mass Spectrometry written by Heoungbin Lim and published by . This book was released on 1989 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Fundamental Studies of the Sampling Process in an Argon Inductively Coupled Plasma- and a Helium Microwave-induced Plasma-mass Spectrometer by : David Michael Chambers
Download or read book Fundamental Studies of the Sampling Process in an Argon Inductively Coupled Plasma- and a Helium Microwave-induced Plasma-mass Spectrometer written by David Michael Chambers and published by . This book was released on 1990 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mass Spectrometry Bulletin written by and published by . This book was released on 1999 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 2000 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applications of Inductively Coupled Plasma Mass Spectrometry by : Alan R. Date
Download or read book Applications of Inductively Coupled Plasma Mass Spectrometry written by Alan R. Date and published by Blackie Academic and Professional. This book was released on 1989 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inductively Coupled Plasma Spectrometry and its Applications by : Steve J. Hill
Download or read book Inductively Coupled Plasma Spectrometry and its Applications written by Steve J. Hill and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of Inductively Coupled Plasma Spectrometry andits Applications was written as a handbook for users who wanted abetter understanding of the theory augmented by a practical insightof how best to approach a range of applications, and to provide auseful starting point for users trying an approach or technique newto them. These objectives have been retained in the second editionbut a slight shift in emphasis gives the volume an overallperspective that is more forward looking. Structured into 11 chapters, the current edition is a thoroughrevision of the original, covering the principles of inductivelycoupled plasmas, instrumentation, methodology and applicationswithin environmental analysis, earth science, food science andclinical medicine. Each chapter, written by internationallyrecognised leaders in their specific subject areas, provides enoughdetail to be useful to both the new and experienced users. Fullaccount is taken of recent developments, such as high resolutioninstruments, novel detection systems and electrospraytechniques. Written for all analytical scientists but particularly thoseinvolved in atomic spectroscopy and in environmental, geochemical,clinical or food analysis, this timely and informative book will bean essential reference in their use of inductively coupled plasmasto achieve their own scientific goals.
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 Springer. This book was released on 1991-11-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the introduction of the first commercial inductively coupled plasma mass spectrometry (ICP-MS) instruments in 1983, the technique has gained rapid and wide acceptance in many analytical laboratories. There are now well over 400 instruments installed worldwide, which are being used in a range of disciplines for the analysis of geological, environmental, water, medical, biological, metallurgical, nuclear and industrial samples. Experience oflCP-MS in many laboratories is limited, and there is therefore a need for a handbook containing practical advice in addition to fundamental informa tion. Such a handbook would be useful not only to users new to the technique, but also to users with some experience who wish to expand their knowledge of the subject. Therefore we have written this book for users in a variety of fields with differing levels of experience and expertise. The first two chapters provide a brief history of ICP-MS and discussions of design concepts, ICP physical processes, and fundamental principles of instrument operation. Armed with this background knowledge, users will be better equipped to evaluate advantages and limitations of the technique. Detailed descriptions and information for instrumental components are provided in chapter 3. Subsequent chapters deal with the practical aspects of sample analysis by ICP-MS. Whether samples are to be analysed in liquid, solid ·or gaseous form is always an important consideration, and there is a wide choice of sample introduction techniques.
Book Synopsis Inductively Coupled Plasma Mass Spectrometry Handbook by : Simon M. Nelms
Download or read book Inductively Coupled Plasma Mass Spectrometry Handbook written by Simon M. Nelms and published by CRC Press. This book was released on 2005 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: With a level of detection of one part in 1015, inductively coupled plasma mass spectrometry (ICP-MS) is a highly sensitive tool in a huge range of analytical applications. Development of the technology continues rapidly, further opening up the scope for this invaluable analytical technique. Despite widespread interest and usage, little has been written to describe the analytical techniques and instrumentation in a format accessible to both new and experienced users of the technique. Inductively Coupled Plasma Mass Spectrometry Handbook provides a thorough description of ICP-MS instrumentation and techniques, giving the reader sufficient knowledge to approach the technique with confidence.
Book Synopsis Inductively Coupled Plasma Mass Spectrometry by : Akbar Montaser
Download or read book Inductively Coupled Plasma Mass Spectrometry written by Akbar Montaser and published by John Wiley & Sons. This book was released on 1998-04-22 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alles über ICP-MS in einem Band! Renommierte Autoren informieren Sie über Theorie, Anwendung und instrumentelle Ausrüstung von A bis Z. Grundlagen werden ebenso behandelt wie neueste Entwicklungen, etwa bei Probenpräparation und Einsatz von Hochfrequenzgeneratoren. Enthält eine Fülle bisher unveröffentlichten Materials!
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2004 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Practical Inductively Coupled Plasma Spectroscopy by : John R. Dean
Download or read book Practical Inductively Coupled Plasma Spectroscopy written by John R. Dean and published by John Wiley & Sons. This book was released on 2005-08-05 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides an up-to-date account of inductively coupled plasmas and their use in atomic emission spectroscopy and mass spectrometry. Specific applications of the use of these techniques are highlighted including applications in environmental, food and industrial analysis. It is written in a distance learning / open learning style; suitable for self study applications. It contains contain self-assessment and discussion questions, worked examples and case studies that allow the reader to test their understanding of the presented material.
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
