A new method for the simultaneous recovery of U, Th and Pb from c. 0.5 g calcium carbonate samples for the purpose of U-(Th)-Pb geochronometry is presented. The protocol employs ion-exchange chromatography. Standard anion-exchange resin (AG 1-X8 100-200 mesh) is used as the static phase and 90% acetic acid is used as the mobile phase to elute the unwanted matrix components; dilute nitric acid is used to elute the U, Th, and Pb. Blanks of 1.8 pg Th, 6.4 pg Pb and 8.4 pg U have been obtained...Expand abstract
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- Peer review status:
- Not peer reviewed
- Author's Original
- Copyright holder:
- The Authors, Geostandards and Geoanalytical Research, International Association of Geoanalysts
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This is the pre-peer-reviewed version of the following article: Mason, A.J., Henderson, G.M. and Vaks, A. (2013) An
acetic-acid-based extraction protocol for the recovery of U, Th and Pb from calcium-carbonates for U-(Th)-Pb
geochronology. Geostandards and Geoanalytical Research. 37 (3), pp. 261-275. The article has been published in final
form at http://onlinelibrary.wiley.com/doi/10.1111/j.1751-908X.2013.00219.x/abstract.
Copyright © 2013 The Authors, Geostandards and Geoanalytical Research, International Association of Geoanalysts.
An acetic-acid-based extraction protocol for the recovery of U, Th and Pb from calcium-carbonates for U-(Th)-Pb geochronology
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