Determination of Strontium-89 and -90 in soil with total sample decomposition

Journal Article · Mon Oct 01 00:00:00 EDT 1979 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac50048a018· OSTI ID:5710434

Martin, D B

Potassium fluoride and pyrosulfate fusions of soil guarantee strontium is in the ionic state. After dissolving the fusion cake, strontium sulfate is coprecipitated with lead and calcium which are preferentially dissolved into EDTA and discarded. Subsequently, strontium sulfate is dissolved in EDTA and hydrolytic elements are separated on ferric hydroxide. Strontium sulfate is precipitated from EDTA at a lower pH, dissolved in DTPA, and set aside for /sup 90/Y ingrowth. After ingrowth the strontium sulfate is reprecipitated, and the /sup 90/ Y is extracted from the supernate into bis(2-ethyhexyl) phosphoric acid. When both /sup 89/Sr and /sup 90/Sr are being determined, barium chromate is separated from a DTPA solution of strontium. Strontium sulfate is precipitated from the barium chromate supernate and counted for /sup 89/Sr plus /sup 90/Sr. Yttrium-90 is counted on yttrium oxalate to determine /sup 90/Sr, and /sup 89/Sr is determined by difference. Precision, accuracy, sensitivity, and the effects of interferences are discussed. 4 tables, 1 figure.

• Research Organization: Department of Energy, Idaho Falls, ID
• OSTI ID: 5710434
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 51:12; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400103* -- Radiometric & Radiochemical Procedures-- (-1987)
510301 -- Environment
Terrestrial-- Radioactive Materials Monitoring & Transport-- Soil-- (-1987)
54 ENVIRONMENTAL SCIENCES
ALKALI METAL COMPOUNDS
ALKALINE EARTH ISOTOPES
ALKALINE EARTH METAL COMPOUNDS
ALKALINE EARTH METALS
AMINO ACIDS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCIUM
CARBOXYLIC ACIDS
CHELATING AGENTS
CHEMICAL ANALYSIS
DAYS LIVING RADIOISOTOPES
DRUGS
DTPA
EDTA
ELEMENTS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
LEAD
METALS
NUCLEI
ODD-ODD NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
POTASSIUM FLUORIDES
QUALITATIVE CHEMICAL ANALYSIS
RADIOCHEMICAL ANALYSIS
RADIOISOTOPES
RADIOPROTECTIVE SUBSTANCES
RESPONSE MODIFYING FACTORS
SOILS
STRONTIUM
STRONTIUM 89
STRONTIUM 90
STRONTIUM COMPOUNDS
STRONTIUM ISOTOPES
STRONTIUM SULFATES
SULFATES
SULFUR COMPOUNDS
TRACER TECHNIQUES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YEARS LIVING RADIOISOTOPES
YTTRIUM
YTTRIUM 90
YTTRIUM COMPOUNDS
YTTRIUM ISOTOPES