Determination of ultra-trace level of 232Th in seawater by ICP-SFMS after matrix separation and preconcentration

This article describes the development and validation of an analytical procedure for the matrix separation, preconcentration and determination of sub-ng kg−1 levels 232Th in a small volume (20 mL) of seawater samples. The matrix separation and Th preconcentration was carried out using a commercially...

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Bibliographic Details
Published in:Analytica chimica acta 2018-02, Vol.1000, p.144-154
Main Authors: Wysocka, Irena, Vassileva, Emilia
Format: Article
Language:English
Subjects:
232Th
ICP-SFMS
Isotope dilution
Method validation
seaFast-pico system
Seawater
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Summary:This article describes the development and validation of an analytical procedure for the matrix separation, preconcentration and determination of sub-ng kg−1 levels 232Th in a small volume (20 mL) of seawater samples. The matrix separation and Th preconcentration was carried out using a commercially available ion-chelation system seaFAST-pico. The acidified to pH 
ISSN:0003-2670
1873-4324
DOI:10.1016/j.aca.2017.09.018