Rapid determination of radium isotopes by alpha spectrometry

1995 ◽  
Vol 194 (1) ◽  
pp. 163-172 ◽  
Author(s):  
J. S. Alvarado ◽  
K. A. Orlandini ◽  
M. D. Erickson
Keyword(s):  
Alpha Spectrometry ◽  
Rapid Determination ◽  
Radium Isotopes

Rapid determination of thorium-230 in mill tailings by .alpha. spectrometry

1987 ◽  
Vol 59 (21) ◽  
pp. 2556-2558 ◽  
Author(s):  
Stephen. Donivan ◽  
Mark. Hollenbach ◽  
Mary. Costello
Keyword(s):  
Alpha Spectrometry ◽  
Rapid Determination ◽  
Mill Tailings

Rapid determination of 210Pb and 210Po by sequential cloud point extraction for environmental monitoring

2021 ◽  
Author(s):  
Guillaume Blanchet-Chouinard ◽  
Dominic Larivière
Keyword(s):  
Environmental Monitoring ◽  
Cloud Point ◽  
Alpha Spectrometry ◽  
Cloud Point Extraction ◽  
Rapid Determination ◽  
Icp Ms

A new sequential cloud point extraction (CPE) procedure was developed and validated for the determination of 210Pb and 210Po by ICP-MS/MS and alpha spectrometry, respectively. Two distinct CPE systems using...

Rapid determination of radium-224/226 in seawater sample by alpha spectrometry

2017 ◽  
Vol 171 ◽  
pp. 169-175 ◽  
Author(s):  
Lijuan Song ◽  
Yonggang Yang ◽  
Maoyi Luo ◽  
Yan Ma ◽  
Xiongxin Dai
Keyword(s):  
Alpha Spectrometry ◽  
Rapid Determination ◽  
Seawater Sample

scholarly journals Rapid Determination of 226Ra and Uranium Isotopes in Solid Samples by Fusion with Lithium Metaborate and Alpha Spectrometry

2002 ◽  
Vol 2 ◽  
pp. 1891-1905 ◽  
Author(s):  
R. Bojanowski ◽  
Z. Radecki ◽  
R. Piekoś
Keyword(s):  
Alpha Spectrometry ◽  
Rapid Determination ◽  
Membrane Filter ◽  
Uranium Isotopes ◽  
Lithium Metaborate ◽  
Soils And Sediments ◽  
Sample Decomposition ◽  
Uranium Determination ◽  
Alpha Spectrometer

A simple and rapid method has been developed to determine226Ra in rocks, soils, and sediments. Samples are decomposed by fusion with lithium metaborate and the melt is dissolved in a solution containing sulfates and citric acid. During the dissolution, a fine suspension of mixed barium and radium sulfates is formed. The microcrystals are collected on a membrane filter (pore size 0.1 μm) and analysed in an alpha spectrometer. Application of a133Ba tracer enables us to assess the loss of the analyte, which only rarely exceeds 10%. All analytical operations, beginning from sample decomposition to source preparation for alpha spectrometry, can be accomplished within 1 or 2 h.With uranium determination, the filtrate is spiked with a232U tracer and passed through a column loaded with a Dowex AG (1 x 4) anion-exchange resin in the sulfate form. Interfering elements are eluted with dilute sulfuric acid followed by concentrated hydrochloric acid. Uranium is eluted with water, electrodeposited on silver discs, and analysed in the alpha spectrometer. The method was tested on reference soil and sediment materials and was found to be accurate within the estimated uncertainties.

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