Record Display for the EPA National Library Catalog


Main Title Measurement of total radium and radium-226 in environmental waters : a tentative reference method /
CORP Author Environmental Monitoring and Support Laboratory (Las Vegas, Nev.). Monitoring Systems Research and Development Division. Quality Assurance Branch,
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory, Available from National Technical Information Service.
Year Published 1976
Report Number EPA-600/4-76-012; ROAP 22ACW; 1HA327; IHA327
Stock Number PB-251 313
OCLC Number 02334347
Subjects Radioactive pollution of water ; Radium ; Water--Analysis ; Water Pollution, Radioactive--analysis
Additional Subjects Radium isotopes ; Water pollution ; Sampling ; Radon isotopes ; Barium isotopes ; Measurement ; Radium 226
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJED  EPA 600/4-76/012 OCSPP Chemical Library/Washington,DC 02/11/2005
ELBD ARCHIVE EPA-600-4-76-012 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA 600-4-76-012 AWBERC Library/Cincinnati,OH 04/16/2018
ESAD  EPA 600-4-76-012 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-251 313 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation iii, 31 pages : illustrations ; 28 cm.
A tentative reference method for the measurement of total radium and radium-226 in environmental water sources is described. Samples are collected, preserved with acid-barium carrier treatment, and analyzed for total radium and/or radium-226. 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 radium-226, the radium is separated from the sample with barium carrier, dissolved and transferred to a de-emanation bubbler, the radon-222 daughter allowed to grow in, the ingrown radon-222 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.
"ROAP Number 22ACW." "March 1976." Includes bibliographical references (page 26).