%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Jeandel, C.
%A Venchiarutti, C.
%A Bourquin, M.
%A Pradoux, C.
%A Lacan, F.
%A van Beek, P.
%A Riotte, Jean
%T Single column sequential extraction of Ra, Nd, Th, Pa and U from a natural sample
%D 2011
%L fdi:010054308
%G ENG
%J Geostandards and Geoanalytical Research
%@ 1639-4488
%K chemical extraction chromatography ; isotopes ; natural samples ; marine ; geochemistry ; radium ; neodymium ; thorium ; protactinium ; uranium ; extraction chimique ; isotopes ; echantillons naturels ; geochimie marine ; radium ; neodyme ; thorium ; protactinium ; uranium
%M ISI:000298358400003
%N 4
%P 449-459
%R 10.1111/j.1751-908X.2010.00087.x
%U https://www.documentation.ird.fr/hor/fdi:010054308
%> https://www.documentation.ird.fr/intranet/publi/2012/01/010054308.pdf
%V 35
%W Horizon (IRD)
%X A new procedure allowing the sequential extraction of Ra, Nd, Th, Pa and U from the same initial natural sample (sea or river waters, particles, sediments, rocks) is proposed. Extraction recoveries were better than 90%. Procedural blanks ranged from 80 pg (for Nd) to below 1 fg, the detection limit of the MC-ICP-MS used (for Pa); all were negligible compared with the amounts of elements currently determined. Based on classical anionic resins attached to a peristaltic pump allowing precise flow rate control, this procedure allowed a consequent reduction of the sample size, which improved the sampling resolution and reduced the sampling cost. It also ensured a better consistency of the samples for the five tracers.
%$ 064 ; 020