Comparison of RNAA and ICP-MS for the determination of ultra-traces of Th and U in geological and cosmochemical samples

J. Chai, Y. Oura, Mitsuru Ebihara

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In order to determine thorium and uranium traces in geochemical and cosmochemical samples, we developed an ICP-MS procedure, in which an anion-exchange step was introduced after sample digestion to separate major matrix elements, leading to decrease the dilution factor and increase the sensitivity for Th and U. The ICP-MS procedure was compared to the RNAA procedure which we recently developed for the same purpose. Both ICP-MS and RNAA procedures developed were found to yield similar detection limits (sub ppb) for Th and U.

Original languageEnglish
Pages (from-to)471-475
Number of pages5
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume255
Issue number3
DOIs
Publication statusPublished - 2003 Mar 1
Externally publishedYes

Fingerprint

Thorium
Uranium
Dilution
Anions
Ion exchange
Negative ions
Limit of Detection
Digestion

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

Cite this

@article{1e6a798cf8514100af903a46be84403e,
title = "Comparison of RNAA and ICP-MS for the determination of ultra-traces of Th and U in geological and cosmochemical samples",
abstract = "In order to determine thorium and uranium traces in geochemical and cosmochemical samples, we developed an ICP-MS procedure, in which an anion-exchange step was introduced after sample digestion to separate major matrix elements, leading to decrease the dilution factor and increase the sensitivity for Th and U. The ICP-MS procedure was compared to the RNAA procedure which we recently developed for the same purpose. Both ICP-MS and RNAA procedures developed were found to yield similar detection limits (sub ppb) for Th and U.",
author = "J. Chai and Y. Oura and Mitsuru Ebihara",
year = "2003",
month = "3",
day = "1",
doi = "10.1023/A:1022563828194",
language = "English",
volume = "255",
pages = "471--475",
journal = "Journal of Radioanalytical and Nuclear Chemistry",
issn = "0022-4081",
publisher = "Elsevier BV",
number = "3",

}

TY - JOUR

T1 - Comparison of RNAA and ICP-MS for the determination of ultra-traces of Th and U in geological and cosmochemical samples

AU - Chai, J.

AU - Oura, Y.

AU - Ebihara, Mitsuru

PY - 2003/3/1

Y1 - 2003/3/1

N2 - In order to determine thorium and uranium traces in geochemical and cosmochemical samples, we developed an ICP-MS procedure, in which an anion-exchange step was introduced after sample digestion to separate major matrix elements, leading to decrease the dilution factor and increase the sensitivity for Th and U. The ICP-MS procedure was compared to the RNAA procedure which we recently developed for the same purpose. Both ICP-MS and RNAA procedures developed were found to yield similar detection limits (sub ppb) for Th and U.

AB - In order to determine thorium and uranium traces in geochemical and cosmochemical samples, we developed an ICP-MS procedure, in which an anion-exchange step was introduced after sample digestion to separate major matrix elements, leading to decrease the dilution factor and increase the sensitivity for Th and U. The ICP-MS procedure was compared to the RNAA procedure which we recently developed for the same purpose. Both ICP-MS and RNAA procedures developed were found to yield similar detection limits (sub ppb) for Th and U.

UR - http://www.scopus.com/inward/record.url?scp=0037339676&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037339676&partnerID=8YFLogxK

U2 - 10.1023/A:1022563828194

DO - 10.1023/A:1022563828194

M3 - Article

AN - SCOPUS:0037339676

VL - 255

SP - 471

EP - 475

JO - Journal of Radioanalytical and Nuclear Chemistry

JF - Journal of Radioanalytical and Nuclear Chemistry

SN - 0022-4081

IS - 3

ER -