Electron Probe Microanalysis

Electron Probe Microanalysis PDF Author: Karl Zierold
Publisher: Springer Science & Business Media
ISBN: 364274477X
Category : Science
Languages : en
Pages : 331

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Book Description
The aim of electron probe microanalysis of biological systems is to identify, localize, and quantify elements, mass, and water in cells and tissues. The method is based on the idea that all electrons and photons emerging from an electron beam irradiated specimen contain information on its structure and composition. In particular, energy spectroscopy of X-rays and electrons after interaction of the electron beam with the specimen is used for this purpose. However, the application of this method in biology and medicine has to overcome three specific problems: 1. The principle constituent of most cell samples is water. Since liquid water is not compatible with vacuum conditions in the electron microscope, specimens have to be prepared without disturbing the other components, in parti cular diffusible ions (elements). 2. Electron probe microanaly sis provides physical data on either dry specimens or fully hydrated, frozen specimens. This data usually has to be con verted into quantitative data meaningful to the cell biologist or physiologist. 3. Cells and tissues are not static but dynamic systems. Thus, for example, microanalysis of physiolo gical processes requires sampling techniques which are adapted to address specific biological or medical questions. During recent years, remarkable progress has been made to overcome these problems. Cryopreparation, image analysis, and electron energy loss spectroscopy are key areas which have solved some problems and offer promise for future improvements.

Electron Probe Microanalysis

Electron Probe Microanalysis PDF Author: Karl Zierold
Publisher: Springer Science & Business Media
ISBN: 364274477X
Category : Science
Languages : en
Pages : 331

Get Book Here

Book Description
The aim of electron probe microanalysis of biological systems is to identify, localize, and quantify elements, mass, and water in cells and tissues. The method is based on the idea that all electrons and photons emerging from an electron beam irradiated specimen contain information on its structure and composition. In particular, energy spectroscopy of X-rays and electrons after interaction of the electron beam with the specimen is used for this purpose. However, the application of this method in biology and medicine has to overcome three specific problems: 1. The principle constituent of most cell samples is water. Since liquid water is not compatible with vacuum conditions in the electron microscope, specimens have to be prepared without disturbing the other components, in parti cular diffusible ions (elements). 2. Electron probe microanaly sis provides physical data on either dry specimens or fully hydrated, frozen specimens. This data usually has to be con verted into quantitative data meaningful to the cell biologist or physiologist. 3. Cells and tissues are not static but dynamic systems. Thus, for example, microanalysis of physiolo gical processes requires sampling techniques which are adapted to address specific biological or medical questions. During recent years, remarkable progress has been made to overcome these problems. Cryopreparation, image analysis, and electron energy loss spectroscopy are key areas which have solved some problems and offer promise for future improvements.

Electron Probe Microanalysis

Electron Probe Microanalysis PDF Author: A. J. Tousimis
Publisher:
ISBN:
Category : Electron probe microanalysis
Languages : en
Pages : 472

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Book Description


Electron Probe Microanalysis in Biology

Electron Probe Microanalysis in Biology PDF Author: David A. Erasmus
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 288

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Book Description


Biomedical Applications of Microprobe Analysis

Biomedical Applications of Microprobe Analysis PDF Author: Peter Ingram
Publisher: Academic Press
ISBN: 0080524567
Category : Science
Languages : en
Pages : 573

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Book Description
Biomedical Applications of Microprobe Analysis is a combination reference/laboratory manual for the use of microprobe analysis in both clinical diagnostic and research settings. Also called microchemical microscopy, microprobe analysis uses high-energy bombardment of cells and tissue, in combination with high resolution EM or confocal microscopy to provide a profile of the ion, metal, and mineral concentrations present in a sample. This allows insight into the physiology and pathophysiology of a wide variety of cells and tissues.This book describes methods for obtaining detailed information about the identity and composition of particles too small to be seen with the naked eye and describes how this information can be useful in diagnostic and biomedical research. - Up-to-date review of electron microprobe analysis - Detailed descriptions of sample preparation techniques - Recent technologies including confocal microscopy, infrared microspectroscopy, and laser raman spectroscopy - Over 100 illustrations with numerous specific applications - Contributions by world-renowned experts in the field - Brief summary of highlights precedes each chapter

Electron Microprobe Analysis and Scanning Electron Microscopy in Geology

Electron Microprobe Analysis and Scanning Electron Microscopy in Geology PDF Author: S. J. B. Reed
Publisher: Cambridge University Press
ISBN: 113944638X
Category : Science
Languages : en
Pages : 232

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Book Description
Originally published in 2005, this book covers the closely related techniques of electron microprobe analysis (EMPA) and scanning electron microscopy (SEM) specifically from a geological viewpoint. Topics discussed include: principles of electron-target interactions, electron beam instrumentation, X-ray spectrometry, general principles of SEM image formation, production of X-ray 'maps' showing elemental distributions, procedures for qualitative and quantitative X-ray analysis (both energy-dispersive and wavelength-dispersive), the use of both 'true' electron microprobes and SEMs fitted with X-ray spectrometers, and practical matters such as sample preparation and treatment of results. Throughout, there is an emphasis on geological aspects not mentioned in similar books aimed at a more general readership. The book avoids unnecessary technical detail in order to be easily accessible, and forms a comprehensive text on EMPA and SEM for geological postgraduate and postdoctoral researchers, as well as those working in industrial laboratories.

X-ray Microanalysis in Biology

X-ray Microanalysis in Biology PDF Author: David C. Sigee
Publisher: Cambridge University Press
ISBN: 9780521415309
Category : Medical
Languages : en
Pages : 356

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Book Description
This book describes an integrated approach to the use of X-ray microanalysis in biology.

Electron Probe Quantitation

Electron Probe Quantitation PDF Author: K.F.J. Heinrich
Publisher: Springer Science & Business Media
ISBN: 0306438240
Category : Science
Languages : en
Pages : 412

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Book Description
In 1968, the National Bureau of Standards (NBS) published Special Publication 298 "Quantitative Electron Probe Microanalysis," which contained proceedings of a seminar held on the subject at NBS in the summer of 1967. This publication received wide interest that continued through the years far beyond expectations. The present volume, also the result of a gathering of international experts, in 1988, at NBS (now the National Institute of Standards and Technology, NIST), is intended to fulfill the same purpose. After years of substantial agreement on the procedures of analysis and data evaluation, several sharply differentiated approaches have developed. These are described in this publi cation with all the details required for practical application. Neither the editors nor NIST wish to endorse any single approach. Rather, we hope that their exposition will stimulate the dialogue which is a prerequisite for technical progress. Additionally, it is expected that those active in research in electron probe microanalysis will appreciate more clearly the areas in which further investigations are warranted.

Scanning Electron Microscopy and X-Ray Microanalysis

Scanning Electron Microscopy and X-Ray Microanalysis PDF Author: Joseph Goldstein
Publisher: Springer Science & Business Media
ISBN: 1461332737
Category : Science
Languages : en
Pages : 679

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Book Description
This book has evolved by processes of selection and expansion from its predecessor, Practical Scanning Electron Microscopy (PSEM), published by Plenum Press in 1975. The interaction of the authors with students at the Short Course on Scanning Electron Microscopy and X-Ray Microanalysis held annually at Lehigh University has helped greatly in developing this textbook. The material has been chosen to provide a student with a general introduction to the techniques of scanning electron microscopy and x-ray microanalysis suitable for application in such fields as biology, geology, solid state physics, and materials science. Following the format of PSEM, this book gives the student a basic knowledge of (1) the user-controlled functions of the electron optics of the scanning electron microscope and electron microprobe, (2) the characteristics of electron-beam-sample inter actions, (3) image formation and interpretation, (4) x-ray spectrometry, and (5) quantitative x-ray microanalysis. Each of these topics has been updated and in most cases expanded over the material presented in PSEM in order to give the reader sufficient coverage to understand these topics and apply the information in the laboratory. Throughout the text, we have attempted to emphasize practical aspects of the techniques, describing those instru ment parameters which the microscopist can and must manipulate to obtain optimum information from the specimen. Certain areas in particular have been expanded in response to their increasing importance in the SEM field. Thus energy-dispersive x-ray spectrometry, which has undergone a tremendous surge in growth, is treated in substantial detail.

Microbeam Analysis in Biology

Microbeam Analysis in Biology PDF Author: Claude Lechene
Publisher: Elsevier
ISBN: 0323143342
Category : Nature
Languages : en
Pages : 695

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Book Description
Microbeam Analysis in Biology contains the proceedings of a workshop on Biological X-Ray Microanalysis by Electron Beam Excitation, held in Boston, Massachusetts on August 25-26, 1977. This book focuses on the principles, techniques, and biological use of electron probe microanalysis, energy-loss spectroscopy, and ion probe microanalysis. This text reflects the emphasis of the workshop on presenting the principles of analysis, the optimization of operating conditions, the description of successful techniques for sample preparation and quantitation, the illustration of problems and pitfalls, and the direction of microbeam analysis in biology.

Introduction to Electron Microscopy for Biologists

Introduction to Electron Microscopy for Biologists PDF Author:
Publisher: Academic Press
ISBN: 008088816X
Category : Science
Languages : en
Pages : 562

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Book Description
This volume demonstrates how cellular and associated electron microscopy contributes to knowledge about biological structural information, primarily at the nanometer level. It presents how EM approaches complement both conventional structural biology (at the high end, angstrom level of resolution) and digital light microscopy (at the low end, 100-200 nanometers). Basic techniques in transmission and scanning electron microscopy Detailed chapters on how to use electron microscopy when dealing with specific cellular structures, such as the nucleus, cell membrane, and cytoskeleton Discussion on electron microscopy of viruses and virus-cell interactions