Simultaneous determination of actinide nuclides in environmental materials by solvent extraction and alpha spectrometry

The Analyst ◽  
1973 ◽  
Vol 98 (1173) ◽  
pp. 873 ◽  
Author(s):  
B. L. Hampson ◽  
D. Tennant
Keyword(s):  
Solvent Extraction ◽  
Simultaneous Determination ◽  
Alpha Spectrometry ◽  
Environmental Materials

Determination of uranium and thorium in complex matrices by two solvent extraction separation techniques and photon electron rejecting alpha liquid spectrometry

2001 ◽  
Vol 89 (11-12) ◽  
Author(s):  
Marin Ayranov ◽  
K. Wacker ◽  
Urs Krähenbühl
Keyword(s):  
Solvent Extraction ◽  
Marine Sediments ◽  
Alpha Spectrometry ◽  
Complex Matrices ◽  
Separation Techniques ◽  
Extraction Separation ◽  
The Matrix ◽  
Matrix Components

The separation of uranium and thorium from complex matrixes such as marine sediments using solvent extraction and determination by means of Photon-Electron Rejecting Liquid Alpha Spectrometry (PERALS®) has successfully been performed. Two extraction schemes, using TOPO and HDEHP, respectively, were compared for the separation of uranium and thorium from the matrix components. The results show recoveries between 73 and 92% for

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