A method for the analysis of rare earth elements in natural waters by isotope dilution mass spectrometry
1994
Schneider, David L. | Palmieri, Julianne M.
A method is described to measure rare-earth elements (REE) in natural water samples. An iron hydroxide precipitation followedby ion-exchange chromatography is used to concentrate and separate the REE from other matrix components. Additionally, therare-earth elements themselves ar separated into the fractions using an organic acid with a second cation column. Instrumentaldetection is by isotope dilution mass spectrometry (IDMS) using either thermal ionization mass spectrometry (TIMS) orinductively coupled plasma-mass spectrometry (ICP-MS). Excellent precision is shown by many duplicate and replicate analyses.Blanks are 1-2% or less of samples.
Показать больше [+] Меньше [-]Funding was provided by the National Science Foundation under Grants OCE 85113910,OCE 8515695, OCE 8711032 and OCE 9101466.
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