ANALYTICAL METHOD FOR THE DETERMINATION OF LANTHANIDE AND YTTRIUM FISSION PRODUCT ACTIVITIES IN VEGETATION, SEAWEED, FISH-FLESH AND NATURAL WATERS

Technical Report · Sun Jan 01 04:00:00 EST 1961

OSTI ID:4838053

Larthanide and Y fission products, in the presence of added La carrier, were radiochemically separated from other activities. The lanthanum was finally precipitated as oxalate and mounted on a counting tray. The beta activity of the source was measured. The method was found to be suitable for the determination of lanthanide and Y fission product aetivities in area survey samples of vegetation, sea-weed, and fish-flesh, and also in natural waters. In the last type of sample several other isotopes may be determined on the same sample portion, and the method is therefore particularly useful when the sample size is limited or when the concentrations of these isotopes are very low. Large samples can be handled without resorting to tedious evaporation techniques. Detection limits are governed by natural background radiation which is dependent upon local conditions. The method has been applied to samples containing 25 to 2500 mu mu c of yltrium and lanthanide fission product activity per sample portion. (auth)

• Research Organization: United Kingdom Atomic Energy Authority. Production Group, Windscale, Sellafield, England; United Kingdom Atomic Energy Authority. Engineering Group, Windscale, Cumb, England
• NSA Number: NSA-15-030581
• OSTI ID: 4838053
• Report Number(s): PG-Report-234
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BACKGROUND
BETA PARTICLES
CHEMISTRY
DETECTION
EVAPORATION
FISH
FISSION PRODUCTS
HYDROLOGY
ISOTOPES
LANTHANUM
MEASURED VALUES
OXALATES
PLANTS
PRECIPITATION
QUANTITATIVE ANALYSIS
RADIATIONS
RADIOCHEMISTRY
RARE EARTHS
SEAWEEDS
SEPARATION PROCESSES
VEGETABLES
WATER
YTTRIUM