Measurement of strontium-89 and strontium-90 in environmental waters. A tentative reference method
A tentative reference method for the measurement of /sup 89/Sr and /sup 90/Sr in environmental waters is described. Samples of environmental water sources are collected, preserved with acid-strontium carrier, and analyzed for /sup 89/Sr and/or /sup 90/Sr. The isotopes are separated from the sample water by precipitating with stable strontium carrier as carbonate. The strontium carbonate is dissolved, /sup 90/Sr separated, the strontium reprecipitated as carbonate, filtered, and counted for the combined /sup 89/Sr and /sup 90/Sr activity. The /sup 90/y is allowed to grow in from the /sup 90/y activity; the strontium carbonate is redissolved; the /sup 90/y is separated, precipitated, and counted for the /sup 90/Sr determination. The /sup 89/Sr activity is then determined by difference of the total /sup 89/Sr and /sup 90/y and the separate /sup 90/Sr activities. Recoveries are determined from the added and found (recovered) strontium carrier. Counting efficiencies are determined with prepared standard reference samples. Results are reported in pCi/liter. (GRA)
- Research Organization:
- Environmental Protection Agency, Las Vegas, Nev. (USA). Environmental Monitoring and Support Lab.
- OSTI ID:
- 7137438
- Report Number(s):
- PB-251312; EPA-600/4-76/011
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
ALKALINE EARTH ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHEMICAL ANALYSIS
CONTAMINATION
DAYS LIVING RADIOISOTOPES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
HOURS LIVING RADIOISOTOPES
HYDROGEN COMPOUNDS
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEASURING METHODS
NUCLEI
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
POLLUTION
RADIOCHEMICAL ANALYSIS
RADIOISOTOPES
SAMPLING
STRONTIUM 89
STRONTIUM 90
STRONTIUM ISOTOPES
WATER
WATER POLLUTION
YEARS LIVING RADIOISOTOPES
YTTRIUM 90
YTTRIUM ISOTOPES