A simple method for 210Pb determination in geological samples by liquid scintillation counting.

Authors :: Blanco P
Lozano JC
Gómez Escobar V
Vera Tomé F
Source :: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2004 Jan; Vol. 60 (1), pp. 83-8.
Publication Year :: 2004
Abstract: A simple procedure for the determination of 210Pb in geological samples using liquid scintillation counting is presented. Following the acid digestion of the sample, the method uses sulphate precipitation for the radiochemical separation. Finally, lead oxalate is precipitated, and once re-dissolved, it is mixed with ULTIMA GOLD AB scintillator cocktail. The measurement is performed using a low-level LKB Quantulus 1220 spectrometer and the two-window technique. Calibration studies were performed to evaluate the interference of 210Bi in the 210Pb measurement. The method was tested on a geological reference sample, and gave satisfactory results and high reproducibility.

Subjects :: Bismuth
Calibration
Radiation Monitoring methods
Radioisotopes
Scintillation Counting standards
Geologic Sediments analysis
Lead Radioisotopes analysis
Scintillation Counting methods

Language :: English
ISSN :: 0969-8043
Volume :: 60
Issue :: 1
Database :: MEDLINE
Journal :: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine
Publication Type :: Academic Journal
Accession number :: 14687640
Full Text :: https://doi.org/10.1016/j.apradiso.2003.09.011

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