Jeandel C., Venchiarutti C., Bourquin M., Pradoux C., Lacan F., van Beek P., Riotte Jean. (2011). Single column sequential extraction of Ra, Nd, Th, Pa and U from a natural sample. Geostandards and Geoanalytical Research, 35 (4), p. 449-459. ISSN 1639-4488.
Titre du document
Single column sequential extraction of Ra, Nd, Th, Pa and U from a natural sample
Jeandel C., Venchiarutti C., Bourquin M., Pradoux C., Lacan F., van Beek P., Riotte Jean
Source
Geostandards and Geoanalytical Research, 2011,
35 (4), p. 449-459 ISSN 1639-4488
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.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020]
;
Géologie et formations superficielles [064]
