Determination of U, Th and Pu in natural waters, biological materials and clinical samples by ETV-ICP-MS

Download
  1. (PDF, 1001 KB)
  2. Get@NRC: Determination of U, Th and Pu in natural waters, biological materials and clinical samples by ETV-ICP-MS (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1039/b502550h
AuthorSearch for: ; Search for: ; Search for:
TypeArticle
Journal titleJournal of Analytical Atomic Spectrometry
ISSN0267-9477
Volume20
Issue8
Pages717723; # of pages: 7
AbstractA method for the determination of U, Th and Pu in natural water, biological materials and urine samples by electrothermal vaporization inductively coupled plasma mass spectrometry (ETV-ICP-MS) is described. Carbide formation was minimized using sample vaporization from a tantalum surface for U and additional use of tetrafluoromethane (Freon-23) as a gaseous modifier for Th and Pu. A prior Ca3(PO4)2 co-precipitation provided an enrichment factor of 50, yielding procedural detection limits (LOD) of 0.013, 0.029 and 0.017 pg g−1 for Th, U and Pu, respectively and corresponding absolute LODs of 0.13, 0.29 and 0.17 fg. Recovery of spikes from urine was typically 80%, whereas those from seawater, river water and biological materials averaged 99%. The accuracy of the method was validated by determination of U and Th in NIST SRM 1566b Oyster Tissue and U in a series of NRC natural water CRMs SLRS-4, CASS-4, NASS-5 and SLEW-3. Precision of determination was better than 10% at concentrations of 0.1 ng mL−1.
Publication date
LanguageEnglish
AffiliationNRC Institute for National Measurement Standards; National Research Council Canada
Peer reviewedNo
Identifier10391186
NRC number2573
NPARC number5764642
Export citationExport as RIS
Report a correctionReport a correction
Record identifier11a9eddb-d210-4a80-a59d-5dbe70369e9b
Record created2009-03-29
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)