A method for the analysis of rare earth elements in natural waters by isotope dilution mass spectrometry
By: by David l. Schneider and Julianne M. Palmieri.
Contributors: Palmieri, Julianne M.; Woods Hole Oceanographic Institution.
Series: WHOI -- 94-06.; WHOI (Series) -- 94-06.
Publisher: Woods Hole Oceanographic Institution
Published: 1994
Place of publication: Woods Hole, Mass
Language: eng
Number of pages: 39
Subjects: Earths, Rare.
Other titles: Isotope dilution mass spectrometry.
Description: A method is described to measure rare-earth elements (REE) in natural water samples. An iron hydroxide precipitation followed by ion-exchange chromatography is used to concentrate and separate the REE from other matrix components. Additionally, the rare-earth elements themselves ar separated into the fractions using an organic acid with a second cation column. Instrumental detection is by isotope dilution mass spectrometry (IDMS) using either thermal ionization mass spectrometry (TIMS) or inductively coupled plasma-mass spectrometry (ICP-MS). Excellent precision is shown by many duplicate and replicate analyses. Blanks are 1-2% or less of samples.
Notes: Includes bibliographical references.

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