QUANTITATIVE SPECTROGRAPHIC ANALYSIS OF THE RARE EARTH ELEMENTS. IX. DETERMINATION OF RARE EARTH IMPURITIES COMMONLY ASSOCIATED WITH PURIFIED SAMARIUM, GADOLINIUM, TERBIUM, AND YTTRIUM
Emission spectrometric methods are described for the following quantitative detetminations: neodymnium and gadolinium in sacaarium; neodymium, samarium, terbium, europium, yttrium, dysprosium, and holmaum in gadolinium; samarium, gadolinium, terbium, dysprosium, holmium, and erbium in yttrium; and samarium, gadolindum, yttrium, and dysprosium in terbium. These methods cover the concentration rang from the detection limit up to 1 per cent. The basic tion of rare earth oixde -graphite mixtures, utilizing unique similarity in excitation behavior of many of the rare earths to provide a high degree of internal standardization. The coefficient of variation is less than plus or minus 5 per ceri in all instances. (auth)
- Research Organization:
- Iowa State Coll., Ames
- NSA Number:
- NSA-13-002021
- OSTI ID:
- 4281312
- Journal Information:
- Spectrochimica Acta (England) Divided into Spectrochim. Acta, Part A and Spectrochim. Acta, Part B, Vol. Vol: 12; Other Information: Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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CARBON- CURRENTS- DYSPROSIUM- ELECTRIC ARCS- ELECTRODES- EMISSION- EUROPIUM- GADOLINIUM- HOLMIUM- IMPURITIES- LIGHT- NEODYMIUM- QUALITATIVE ANALYSIS- QUANTITY RATIO- RARE EARTHS- SAMARIUM- SPECTROSCOPY- TERBIUM- TRACE AMOUNTS- YTTRIUM
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