THE RADIOCHEMICAL DETERMINATION OF AMERICIUM IN THE PRESENCE OF PLUTONIUM IN URINE
Americium is precipitated with bismuth phosphate from a nitric acid- digested urine sample. The bismuth phosphate is wet-ashed, dissolved in 6N--HCl, and the americium is precipitated with lamthanum fluoride. The lanthanum fluoride is metathesized to the hydroxide, and the precipitate is dissolved in 2N- nitric acid. Removal of concurrently metabolized plutonium is accomplished by liquid-liquid extraction of the nitric acid soiution with 0.1-M di(2- ethylhexyl)phosphoric acid (D2EIIPA) in chloroform. The purified americium is carried on lanthanum fluoride. The precipitate is slurried onto a stainless steel plamchet and counted in a low-background proportional alpha counter. The method is effective for quantitative separation from plutonium and uranium. Quantities of the order of 0.5 dpm of americium cam be detected in a urine sample. (auth)
- Research Organization:
- Dow Chemical Co. Rocky Flats Plant, Denver
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AT(29-1)-1106
- NSA Number:
- NSA-17-002905
- OSTI ID:
- 4763837
- Report Number(s):
- RFP-279
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-63
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AMERICIUM
BISMUTH PHOSPHATES
CHLORINATED HYDROCARBONS
CHLOROFORM
DEHPA
HYDROCHLORIC ACID
HYDROXIDES
LANTHANUM FLUORIDES
LAYERS
NITRIC ACID
ORGANIC PHOSPHORUS COMPOUNDS
PHOSPHORIC ACID
PLUTONIUM
PRECIPITATION
PROPORTIONAL COUNTERS
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
RADIOCHEMISTRY
RESIDUES
SEPARATION PROCESSES
SLURRIES
SOLUTIONS
SOLVENT EXTRACTION
STAINLESS STEELS
URANIUM
URINE