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Digitale Medien

Portable X-ray fluorescence analyser with increased precision by using the method of balanced filters (1986)

Vatai, E. ; Andó, L.

New York, NY [u.a.] : Wiley-Blackwell

X-Ray Spectrometry 15 (1986), S. 23-27

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Details

ISSN: 0049-8246

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Physik

Notizen: An increase of an order of magnitude in the precision of the balanced filters method is achieved by using a low-power x-ray tube and measuring the ionization current, without increasing the measurement time. A simultaneous change of excitation and detection is essential: the measurement of the ionization current makes possible a dead-time free detection of the high intensities excited by the x-ray tube, and leads to a decrease in the statistical error. The standard deviations obtained with a portable analyser utilizing this method in the determination of the Cr and Mn contents of low-alloy steels in the concentration range 0-1.5% are 0.02 and 0.03%, respectively.

Zusätzliches Material: 4 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/xrs.1300150107

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