The Quantitative Spectrographic Analysis of the Rare Earth Elements PDF Download
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Author: Velmer A. Fassel
Publisher:
ISBN:
Category : Rare earths
Languages : en
Pages : 22
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Author: Velmer A. Fassel
Publisher:
ISBN:
Category : Rare earths
Languages : en
Pages : 22
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Book Description
Author: Velmer A. Fassel
Publisher:
ISBN:
Category : Rare earth metals
Languages : en
Pages : 4
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Author: Velmer A. Fassel
Publisher:
ISBN:
Category : Gadolinium
Languages : en
Pages : 16
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Book Description
Spectrographic methods applicable to the determination of major rare earth constituents in complex mixtures are described. The specific examples discussed are the determination of yttrium and gadolinium in the concentration range of 10 to 100 per cent. The procedures involve the high current DC arc excitation of rare earth oxide sample-ceric oxide-graphite mixtures. Selected lines of cerium are used as internal standards. The choice of cerium as internal standard was based on the relative ease with which any cerium, if present in a mixture, could be preferentially separated from the mixture, and then reintroduced in a standard amount. Precision studies show a standard deviation of about + or - 2.5 per cent of the amount present. Data are included which indicate that the high precision is attributable to excellent internal standard control of excitation variables. jg p.2.
Author: Ch. Kerekes
Publisher: Elsevier
ISBN: 148315520X
Category : Science
Languages : en
Pages : 73
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Book Description
Atlas and Tables for Emission Spectrographic Analysis of Rare Earth Elements focuses on the analysis of rare earths with the Zeiss Q 24 spectrograph or with instruments of similar dispersion. The book first offers information on the division of the spectra of rare earth elements and Sc and Y into three groups. The spectra of Ce, Pr, Nd, Gd, Tb, Dy, Ho, and Er have lines that, however, do not form characteristic line groups. The text underscores that in preparing the Atlas, the spectral pure-grade rare earth oxides sold by the Johnson & Matthey Co. were considered. Through the help of their spectra, the usable analysis lines and the wavelength values of the interfering spectral lines are created. The operating and photographic conditions are tabulated. The book stresses that for each rare earth, the analysis lines are provided in order of decreasing wavelength. The number located in the lower left corner for each analysis line indicates its relative intensity. The fifteen columns contain the interfering lines of other rare earths and of Sc and Y. The interfering lines are created through the use of the double projector of the Optica Milano Co. and the Gatterer Spectrum. The text is a great source of information for readers wanting to analyze rare earths with the Zeiss Q 24 spectrograph or with instruments of similar dispersion.
Author: L. Allan White
Publisher:
ISBN:
Category : Earths, Rare
Languages : en
Pages : 22
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Author: Farrel W. Lytle
Publisher:
ISBN:
Category : Rare earths
Languages : en
Pages : 20
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Author: Farrel W. Lytle
Publisher:
ISBN:
Category : Bastnaesite
Languages : en
Pages : 24
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Alfred Golloch
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110365081
Category : Science
Languages : en
Pages : 418
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Book Description
The Handbook of Rare Earth Elements focuses on the essential role of modern instrumental analytics in the recycling, purification and analysis of rare earth elements. Due to their numerous applications, e.g. in novel magnetic materials for computer hardware, mobile phones and displays, rare earth elements have become a strategic and valuable resource. The detailed knowledge of rare earth element contents at every step of their life cycle is of great importance. This reference work was compiled with contribution from an international team of expert authors from Academia and Industry to presend a comprehensive discussion on the state-of-the-art of rare earth element analysis for industrial and scientific purposes, recycling processes and purification of REEs from various sources. Written with Analytical Chemists, Inorganic Chemists, Spectroscopists as well as Industry Practitioners in mind, the Handbook of Rare Earth Elements is an indispensable reference for everyone working with rare earth elements.
Author: Arthur Amos Noyes
Publisher:
ISBN:
Category : Analytical chemistry
Languages : en
Pages : 556
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