Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 100

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Author: Bourdon Francis Scribner
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 96

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Author: John Keenan Taylor
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: William R. Shields
Publisher: Forgotten Books
ISBN: 9780260453730
Category : Science
Languages : en
Pages : 62

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Excerpt from Analytical Mass Spectrometry Section: Summary of Activities, July 1968 to June 1969 During the year, we have become active in the project for trace characterization by isotope dilution. Uranium, lead, copper and boron have been determined in a Trace Elements in Glass Standard, copper has been determined in a number of iron and steel samples, and lead has been determined in a special Standard Reference Material steel. 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: William R. Shields
Publisher: Forgotten Books
ISBN: 9780364898635
Category : Technology & Engineering
Languages : en
Pages : 62

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Excerpt from Analytical Mass Spectrometry Section: Summary of Activities July 1967 to June 1968 The Analytical Chemistry Division was established as a separate division at the National Bureau of Standards on September 1, 1963, and became part of the Institute for Materials Research in the February 1, 1964 reorganization. It consists at present of nine sections and about 100 tech nical personnel encompassing some M5 different analytical competences from activation analysis and atomic absorption to vacuum fusion and x - ray spectroscopy. These competences, and in turn the sections which they comprise, are charged with research at the forefront of analysis as well as awareness of the practical sample, be it standard reference material or service analysis. In addition it is their responsibility to inform others of their efforts. 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: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 116

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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: John Keenan Taylor
Publisher: Forgotten Books
ISBN: 9781390451160
Category :
Languages : en
Pages : 154

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Excerpt from Microchemical Analysis Section: Summary of Activities, July 1967 to June 1968 Formal publication in scientific periodicals is a highly important output of our laboratories. In addition, however, it has been our experience that informal, annual summaries of progress describing efforts of the past year can be very valuable in disseminating information about our programs. 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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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: Kurt F. J. Heinrich
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 132

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Author: Bourdon F. Scribner
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 114

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