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Author: Bourdon Francis Scribner
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 112
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Book Description
Activities in optical spectrometry included development of programs for calculations on a time-sharing computer, measurement of arc temperatures, applications of the laser probe and the plasma jet, and studies on atomic absorption spectrometry. In x-ray spectroscopy, there were some modifications of equipment, improvements in computation methods, and several applications. Improvements and additions were made to the electron probe analyzer, along with studies on measurement techniques, including nondispersive analysis and computation procedures. The spark-source mass spectrometer was also modified, and a new analog computer has been built and tested for reduction of photographic plate data; applications of this instrument to analyses of pure materials are described. Enrichment methods are being studied for the analysis of pure materials by emission spectroscopy, particularly with an electro-deposition technique. Homogeneity studies and analyses were performed in the development of standard reference materials. (Author).
Author: Bourdon Francis Scribner
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 112
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Book Description
Activities in optical spectrometry included development of programs for calculations on a time-sharing computer, measurement of arc temperatures, applications of the laser probe and the plasma jet, and studies on atomic absorption spectrometry. In x-ray spectroscopy, there were some modifications of equipment, improvements in computation methods, and several applications. Improvements and additions were made to the electron probe analyzer, along with studies on measurement techniques, including nondispersive analysis and computation procedures. The spark-source mass spectrometer was also modified, and a new analog computer has been built and tested for reduction of photographic plate data; applications of this instrument to analyses of pure materials are described. Enrichment methods are being studied for the analysis of pure materials by emission spectroscopy, particularly with an electro-deposition technique. Homogeneity studies and analyses were performed in the development of standard reference materials. (Author).
Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 116
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Book Description
The report is the fifth in a series of annual progress reports of the Spectrochemical Analysis Section of the Analytical Chemistry Division of the National Bureau of Standards. Briefly discussed is research on the following topics:Optical spectrometry (High-aperture spectrograph, Microanalysis in the DC arc); Electron probe microanalysis (New technique and instrumentation for target current scanning, Color composite X-ray scans); X-ray fluorescence spectrometry; Spark source mass spectrometry (New pump for plate prepump section, Use of 100-mesh grids to remove matrix line broadening, Homogeneity testing of iron in high purity gold SRM 685, Survey analysis of a steel sample, Trace characterization of spark source ion samples of SRM platinum 681); Preconcentration techniques (High purity metals, Ingot iron and steels, Simulated lunar glasses, Ultra-pure liquid reagents).
Author: Kurt F. J. Heinrich
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 132
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Book Description
Author: Bourdon Francis Scribner
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 88
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Book Description
Author: Bourdon F. Scribner
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 114
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Book Description
Author: Bourdon F. Scribner
Publisher: Forgotten Books
ISBN: 9780364993224
Category : Technology & Engineering
Languages : en
Pages : 120
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Book Description
Excerpt from Activities of the Nbs Spectrochemical Analysis Section July 1968 to June 1969 The purpose of this report is to review the program, facilities, and accomplishments of the Section for the past year. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Bourdon Francis Scribner
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 120
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Book Description
Spectrochemical research activities, improvements in equipment, and applications, especially to the certification of NBS Standard Reference Materials, are summarized. In electron probe microanalysis, a comprehensive computer correction program for accurate analysis of materials relative to single elements or simple compounds was developed, an improved lithium-doped silicon detector was found to provide increased resolution, and improvements in microprobe instrumentation produced a high level of stability. Studies of procedures for correction of x-ray fluorescence measurements were made, instrumental changes resulted in marked improvement in performance reliability, and new applications were made. In optical emission spectrometry, studies were made of beryllium determination in an air pollution investigation and trace analyses were made of organic materials to parts per billion limits. Methods of pre-concentration of impurities are described for optical emission and isotope dilution spark source mass spectrometric analysis of ingot iron, botanical materials, and high purity reagents. Work on Standard Reference Materials resulted in certification of stainless steel, clays, ferrosilicon, blast furnace irons, white irons, lead bearing metal, and ductile irons. (Author).
Author: K. F. J. Heinrich
Publisher:
ISBN:
Category :
Languages : en
Pages : 116
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Book Description
Author: Bourdon F. Scribner
Publisher: Forgotten Books
ISBN: 9780260433091
Category : Business & Economics
Languages : en
Pages : 116
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Book Description
Excerpt from Activities of the Nbs Spectrochemical Analysis Section: July 1965 Through June 1966 The research program of the Section is directed generally toward a better understanding of the phenomena involved in producing and measuring optical and x-ray emitted energy and mass spectra, and the improvement of spectrochemical methods, instruments, and calibration procedures. Included in these activities are the develop ment of standard reference materials, analyses of materia to assist other research projects, and literature surveys such as bibliographies and critical reviews. In this report, the program, facilities, and accomplishments of the Section for the past year will be reviewed. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Bourdon F. Scribner
Publisher: Forgotten Books
ISBN: 9780365138723
Category : Technology & Engineering
Languages : en
Pages : 94
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Book Description
Excerpt from Activities of the Nbs Spectrochemical Analysis Section, July 1966 Through June 1967 This is the third in a series of annual progress reports of the Spectrochemical Analysis Section of the Analytical Chemistry Division. The Section is concerned with instrumental elemental analysis, especially for those spectroscopic techniques that are capable of multi - element determinations. These include optical, x - ray, and mass spectroscopy. Chemical elements are uniquely identified by the characteristic frequency of emitted spectra, and amounts present can be determined by measurement of the intensity of emitted radiation. However, many factors enter into successful spectral analysis and must be carefully controlled. These include, in optical and x - ray spectrometry, the production of radiant energy by excitation, the dispersion of radiant energy into a spectrum, and the measurement of spectral wavelengths and intensities. In a similar way, spark source mass spectrometry involves ion formation, dispersion into a mass spectrum, and measurement of intensities for recorded masses. In general these are methods of comparative analysis in which calibration by synthesized or analyzed standards is required. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
