Determination of impurities of gadolinium and terbium in scandium oxide. [X-ray excited fluorescence spectra in ScPO/sub 4/ phosphors]

Journal Article · Fri Aug 01 00:00:00 EDT 1975 · Ind. Lab. (USSR) (Engl. Transl.); (United States)

OSTI ID:7283088

Poluektov, N S; Gava, S A

Gd and Tb were determined in Sc/sub 2/O/sub 3/ by x-ray excitation of fluorescence spectra in the region of 309 to 318 nm (Gd) and 370 to 395 nm (Tb) in crystal phosphors. Fluorescence spectra were obtained with phosphors based on ScPO/sub 4/. Proportionality between the fluorescence intensity and content of the element was maintained up to 100 ..mu..g in 50 mg Sc/sub 2/O/sub 3/, and the minimum detectable content was 0.025 ..mu..g Gd and 0.125 ..mu..g Tb in a 50-mg sample of Sc/sub 2/O/sub 3/. The coefficient of variation of the method was approximately 5 to 9 percent. (BLM)

• Research Organization: Inst. of General and Inorganic Chemistry, Kiev
• OSTI ID: 7283088
• Journal Information: Ind. Lab. (USSR) (Engl. Transl.); (United States), Vol. 41:8; Other Information: Translated from Zavod. Lab.; 41: No. 8, 915-916(Aug 1975)
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
GADOLINIUM
FLUORESCENCE SPECTROSCOPY
SCANDIUM OXIDES
CHEMICAL ANALYSIS
TERBIUM
ACCURACY
RELIABILITY
SENSITIVITY
CHALCOGENIDES
ELEMENTS
EMISSION SPECTROSCOPY
METALS
OXIDES
OXYGEN COMPOUNDS
RARE EARTHS
SCANDIUM COMPOUNDS
SPECTROSCOPY
TRANSITION ELEMENT COMPOUNDS
400104* - Spectral Procedures- (-1987)