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  • Articles  (1,149)
  • Analytical Chemistry and Spectroscopy  (1,149)
  • 1980-1984  (862)
  • 1970-1974  (287)
  • Physics  (1,149)
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  • Articles  (1,149)
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  • 1
    Electronic Resource
    Electronic Resource
    All you ever wanted to know about X-ray energy spectrometry. Rolf Woldseth. KeVeX Corporation, 1973. $ 7.95 (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 3 (1974), S. A3 
    Details
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/xrs.1300030114
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  • 2
    Electronic Resource
    Electronic Resource
    News and events (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 3 (1974), S. A5 
    Details
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/xrs.1300030116
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  • 3
    Electronic Resource
    Electronic Resource
    Masthead (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 3 (1974) 
    Details
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/xrs.1300030201
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  • 4
    Electronic Resource
    Electronic Resource
    Editorial (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 3 (1974), S. 51-51 
    Details
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/xrs.1300030202
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  • 5
    Electronic Resource
    Electronic Resource
    Determination of overall system efficiency of an energy dispersive X-ray fluorescence spectrometer using a bremsstrahlung exciting sourceWork supported in part by the Department of the Interior (Office of Water Resources Research). (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 3 (1974), S. 53-58 
    Details
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Four independent techniques for quantitatively calibrating an energy dispersive X-ray fluorescence system are compared. These include commercially available powder standards, vacuum deposited standards, laboratory developed powder standards and a semi-theoretical method. A technique is presented for using the latter method in the case where the exciting radiation is bremsstrahlung. These methods are discussed and their resulting efficiency values compared. The most complete, most reliable and easiest method is the semi-theoretical method. Single compound powders of standard chemicals can be used one at a time for periodic checks of the system.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/xrs.1300030203
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  • 6
    Electronic Resource
    Electronic Resource
    Theoretical correction procedures for X-ray fluorescence analysis (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 3 (1974), S. 64-73 
    Details
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Theoretical to formulae for the fluoresent X-ray intenisty are obtained and calculations made for nickel + iron + chromium binary and tertiary systems. In the calculation, the continous X-ray of the irradiating source should be taken into account. The theoretical results agree well with the experimental results but have maximum deviations of 1% and it is thought that the error may be due to coexistent elements. The effect of the coexistent elements can be estimated by theoretical calculation and in routine work the effects are usually expressed as linear expansion factors. These factors are generally obtained from a series of experiments but they can be easily obtained by calculation. The errors caused by the linear approximation are also estimated and it is concluded that the approximation is approved in routine analysis of steels when the composition ranges of the steel type are limited by industrial standards.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/xrs.1300030205
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  • 7
    Electronic Resource
    Electronic Resource
    Application de la Spectrométrie de Fluorescence X á la Mesure de l'Espace de Diffusion du Brome dans le Corps Humain (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 3 (1974), S. 59-63 
    Details
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Description / Table of Contents: Measurement of the extracellular fluid volume (ECFV) in the human body is an useful means of recognizing pathological conditions. X-ray fluorescence spectrometry allows a simple and accurate determination of the difusion space of bromide ions, from which the ECFV value can be calculated. The method consists of the quantitative determination of stable bromine (80Br) at low concentration in biological fluids, using the Br Kα line. A simultaneous study run with a radioactive tracer (82Br) allowed us to check the validity of the procedure.
    Notes: Le volume de liquide extracellualaire (LEC) chez l'homme estun parameétre important pour la deétection de certins eétats pathologiques. La spectromeétrie de fluorescence X permet de mesurer avec une bonne preécision I'espace de deffusion de I'ion bromure et d'en deédrire la valeur du volume de LEC. La meéthode consiste en un dosage direct du brome stabel (80Br) à faible concentration dans les liquides biologiques, en utilisant la raie Br Kα Une étude paralleéle au moyen d'un radiotraceur (82Br)permet de tester la valcur de la meéthode.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/xrs.1300030204
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  • 8
    Electronic Resource
    Electronic Resource
    An electronic modification of an automatic x-ray fluorescence spectrometer with sample loader to increase the flexibility of the measurement sequencePaper presented at the 10th conference on x-ray analytical methods, edinburgh, UK. (1980)
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 9 (1980), S. 2-4 
    Details
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: The Philips PW 1450/00 or /10 automatic hardware-programmed X-ray spectrometer, when used in conjunction with the PW 1466 60 position sample loader, permits measurement of both standard and unknown using the same channel only when the ratio mode is selected. Further, a standard must be measured for every unknown. An electronic modification is described which overcomes both of these restrictions.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/xrs.1300090103
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  • 9
    Electronic Resource
    Electronic Resource
    Multielement x-ray fluorescence spectrometry of solutions (1980)
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 9 (1980), S. 13-18 
    Details
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: The theoretical relationships between fluorescence intensity and concentration have been used for the calculation of correction constants of the Lachance--Traill and Rasberry--Heinrich equation for systems of solutions. The constants have also been calculated by means of the multivariate least--squares method. Those two alternatives have been tested on systems of Cu--Fe--Zn and Cu--Fe--Zn--Pb in 3.5% aqueous nitric acid and compared with the simple two-variable linear relationship between fluorescence intensity and concentration. The multivariate least--squares alternative gives for the Lachance--Traill method very accurate results (average relative deviation does not exceed 0.18%). In a theoretical discussion, the relationship between optimum sample concentration and solvent correction (enhancement) constant is shown. The optimum conditions for a background reading are also calculated.
    Additional Material: 7 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/xrs.1300090106
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  • 10
    Electronic Resource
    Electronic Resource
    X-ray K absorption studies on some 1,10 phenanthroline-based cobalt complexes (1980)
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 9 (1980), S. 77-80 
    Details
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: The X-ray K absorption edges of Co in some 1,10 phenanthroline-based complexes of cobalt have been recorded. The results have been discussed qualitatively in terms of the effective nuclear charge on the central metal atom and the nature of the ligand.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/xrs.1300090210
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