The determination of rare earth elements in marine sediments by ion-exchange separation and ICP emission spectrometry
Citable URI
https://hdl.handle.net/1912/7605DOI
10.1575/1912/7605Keyword
Marine sediments; Rare earth metalsAbstract
A method has been developed to measure rare-earth elements (REE) in
gram-sized marine sediment samples. A strong acid digestion technique
followed by ion-exchange chromatography is used to solubilize, separate, and
purify the REE from other matrix components. Instrumental detection is by
inductively coupled plasma-atomic emission spectrometry (ICP-AES). Excellent
precision and accuracy were proved by analyses of unknown sediment replicates
and standard reference rock samples. Blanks and empirically determined
detection limits are discussed in relation to measured REE concentrations in
sediments. Direct evidence is given for the co-precipitation and fractionation
of the REE by precipitates formed as a result of the acid digestion
with HF. A technique for dissolving these is then presented.
Suggested Citation
Technical Report: Schneider, David L., Bankston, Donald C., "The determination of rare earth elements in marine sediments by ion-exchange separation and ICP emission spectrometry", 1987-12, DOI:10.1575/1912/7605, https://hdl.handle.net/1912/7605Related items
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