Determination of Fe, Cu, Mo, and W by radioisotope-induced x-ray fluorescence (exchange of experience). [Determination in ores]

Journal Article · Thu Apr 01 04:00:00 EST 1976 · Ind. Lab. (USSR) (Engl. Transl.); (United States)

OSTI ID:7328499

Bochenin, V I

A method is described for the determination of Fe, Cu, Mo, and W in ores by measurement of the x-ray fluorescence induced by irradiation with a /sup 109/Cd source. The samples were irradiated in cells having pure Cu bottoms, and in the determination of Fe, interference from BaO and CaO were reduced by using the fluorescence from the Cu substrate as an internal standard. The fluorescent radiation from the Cu substrate was also used in determining Cu in ores to reduce the interference from Fe and Pb. The Cu content was determined by difference by counting the fluorescence for a sample in a cell with a copper bottom and for a sample in a cell with a lucite bottom. W and Mo were determined simultaneously using the W L-series lines (E = 8.5 keV) while Mo was determined from the K-series (E = 17.5 keV). The method is limited to specimens with comparatively small composition variations. (BLM)

• Research Organization: Karanganda Polytechnical Inst., USSR
• OSTI ID: 7328499
• Journal Information: Ind. Lab. (USSR) (Engl. Transl.); (United States), Journal Name: Ind. Lab. (USSR) (Engl. Transl.); (United States) Vol. 42:4; ISSN INDLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400103* -- Radiometric & Radiochemical Procedures-- (-1987)
CHEMICAL ANALYSIS
COPPER
ELEMENTS
IRON
IRRADIATION
METALS
MOLYBDENUM
NONDESTRUCTIVE ANALYSIS
ORES
REFRACTORY METALS
TRANSITION ELEMENTS
TUNGSTEN
X-RAY EMISSION ANALYSIS
X-RAY FLUORESCENCE ANALYSIS