FLUORESCENT X-RAY ANALYSIS OF LANTHANUM, CERIUM, PRASEODYMIUM, AND NEODYMIUM (in Japanese)
A method of fluorescent analysis by the use of characteristic x ray of K series was developed for the determination of lanthanum, cerium, praseodymium, and neodymium. The spectrochemical analysis of the elements is simplified by utilizing K spectra, since these can be separated much more readily than L spectra. Furthermore, the pulse height analyzer employed in conjunction with an analytical crystal gives a successful result in separating the K spectra from K and J spectra of other coexisting elements such as yttrium and thorium. The intensities of K spectra of the rare earth elements are almost independent on the presence and chemical state of light elements such as silicon and phosphorus. The calibration curve ior the analytical use is quite the same on each rare earth element within experimental error, as far as the intensity for 30% content is taken as unity. The analytical error of the method is plus or minus 1.5% for 20% content and plus or minus 3.0% for 60% content, provided that the content of yttrium and thorium does not exceed 1.5 and 0.2%, respectively. (P.C.H.)
- Research Organization:
- Government Chemical Industrial Research Inst., Tokyo
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-18-001549
- OSTI ID:
- 4156262
- Journal Information:
- Bunseki Kagaku (Japan), Journal Name: Bunseki Kagaku (Japan) Vol. Vol: 11; ISSN BNSKA
- Country of Publication:
- Country unknown/Code not available
- Language:
- Japanese
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