Measurement of total radium and radium-226 in environmental waters. A tentative reference method
A tentative reference method for the measurement of total radium and /sup 226/Ra in environmental water sources is described. Samples are collected, preserved with acid-barium carrier treatment, and analyzed for total radium and/or /sup 226/Ra. For samples analyzed for total radium, the radium is separated from the sample with barium and lead carriers. The barium and radium are then separated from the lead carrier, precipitated as the sulfate, filtered, and counted for alpha activity. For samples analyzed for /sup 226/Ra, the radium is separated from the sample with barium carrier, dissolved and transferred to a de-emanation bubbler, the /sup 222/Rn daughter allowed to grow in, the ingrown /sup 222/Rn de-emanated from the solution and transferred to a scintillation counting cell, and alpha counted. Recoveries are determined from the added and found (recovered) barium 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:
- 7330289
- Report Number(s):
- PB-251313; EPA-600/4-76/012
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
ALKALINE EARTH ISOTOPES
ALKALINE EARTH METALS
ALPHA DECAY RADIOISOTOPES
BARIUM
CHEMICAL ANALYSIS
DAYS LIVING RADIOISOTOPES
ELEMENTS
EVEN-EVEN NUCLEI
HEAVY NUCLEI
HYDROGEN COMPOUNDS
ISOTOPES
METALS
NUCLEI
OXYGEN COMPOUNDS
POLLUTION
RADIOCHEMICAL ANALYSIS
RADIOISOTOPES
RADIUM 226
RADIUM ISOTOPES
RADON 222
RADON ISOTOPES
SAMPLING
WATER
WATER POLLUTION
YEARS LIVING RADIOISOTOPES