Online preconcentration ICP-MS analysis of rare earth elements in seawater
The rare earth elements (REEs) with their systematically varying properties are powerful tracers of continental inputs, particle scavenging intensity and the oxidation state of seawater. However, their generally low (?pmol/kg) concentrations in seawater and fractionation potential during chemical tr...
Published in: | Geochemistry, Geophysics, Geosystems |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2012
|
Subjects: | |
Online Access: | https://eprints.soton.ac.uk/368790/ https://eprints.soton.ac.uk/368790/1/ggge2140.pdf |
id |
ftsouthampton:oai:eprints.soton.ac.uk:368790 |
---|---|
record_format |
openpolar |
spelling |
ftsouthampton:oai:eprints.soton.ac.uk:368790 2023-07-30T04:07:03+02:00 Online preconcentration ICP-MS analysis of rare earth elements in seawater Hathorne, Ed C. Haley, Brian Stichel, Torben Grasse, Patricia Zieringer, Moritz Frank, Martin 2012-01-31 text https://eprints.soton.ac.uk/368790/ https://eprints.soton.ac.uk/368790/1/ggge2140.pdf en English eng https://eprints.soton.ac.uk/368790/1/ggge2140.pdf Hathorne, Ed C., Haley, Brian, Stichel, Torben, Grasse, Patricia, Zieringer, Moritz and Frank, Martin (2012) Online preconcentration ICP-MS analysis of rare earth elements in seawater. Geochemistry, Geophysics, Geosystems, 13 (1), Q01020. (doi:10.1029/2011GC003907 <http://dx.doi.org/10.1029/2011GC003907>). Article PeerReviewed 2012 ftsouthampton https://doi.org/10.1029/2011GC003907 2023-07-09T21:55:01Z The rare earth elements (REEs) with their systematically varying properties are powerful tracers of continental inputs, particle scavenging intensity and the oxidation state of seawater. However, their generally low (?pmol/kg) concentrations in seawater and fractionation potential during chemical treatment makes them difficult to measure. Here we report a technique using an automated preconcentration system, which efficiently separates seawater matrix elements and elutes the preconcentrated sample directly into the spray chamber of an ICP-MS instrument. The commercially available “seaFAST” system (Elemental Scientific Inc.) makes use of a resin with ethylenediaminetriacetic acid and iminodiacetic acid functional groups to preconcentrate REEs and other metals while anions and alkali and alkaline earth cations are washed out. Repeated measurements of seawater from 2000 m water depth in the Southern Ocean allows the external precision (2?) of the technique to be estimated at <23% for all REEs and <15% for most. Comparison of Nd concentrations with isotope dilution measurements for 69 samples demonstrates that the two techniques generally agree within 15%. Accuracy was found to be good for all REEs by using a five point standard addition analysis of one sample and comparing measurements of mine water reference materials diluted with a NaCl matrix with recommended values in the literature. This makes the online preconcentration ICP-MS technique advantageous for the minimal sample preparation required and the relatively small sample volume consumed (7 mL) thus enabling large data sets for the REEs in seawater to be rapidly acquired. Article in Journal/Newspaper Southern Ocean University of Southampton: e-Prints Soton Southern Ocean Geochemistry, Geophysics, Geosystems 13 1 n/a n/a |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
description |
The rare earth elements (REEs) with their systematically varying properties are powerful tracers of continental inputs, particle scavenging intensity and the oxidation state of seawater. However, their generally low (?pmol/kg) concentrations in seawater and fractionation potential during chemical treatment makes them difficult to measure. Here we report a technique using an automated preconcentration system, which efficiently separates seawater matrix elements and elutes the preconcentrated sample directly into the spray chamber of an ICP-MS instrument. The commercially available “seaFAST” system (Elemental Scientific Inc.) makes use of a resin with ethylenediaminetriacetic acid and iminodiacetic acid functional groups to preconcentrate REEs and other metals while anions and alkali and alkaline earth cations are washed out. Repeated measurements of seawater from 2000 m water depth in the Southern Ocean allows the external precision (2?) of the technique to be estimated at <23% for all REEs and <15% for most. Comparison of Nd concentrations with isotope dilution measurements for 69 samples demonstrates that the two techniques generally agree within 15%. Accuracy was found to be good for all REEs by using a five point standard addition analysis of one sample and comparing measurements of mine water reference materials diluted with a NaCl matrix with recommended values in the literature. This makes the online preconcentration ICP-MS technique advantageous for the minimal sample preparation required and the relatively small sample volume consumed (7 mL) thus enabling large data sets for the REEs in seawater to be rapidly acquired. |
format |
Article in Journal/Newspaper |
author |
Hathorne, Ed C. Haley, Brian Stichel, Torben Grasse, Patricia Zieringer, Moritz Frank, Martin |
spellingShingle |
Hathorne, Ed C. Haley, Brian Stichel, Torben Grasse, Patricia Zieringer, Moritz Frank, Martin Online preconcentration ICP-MS analysis of rare earth elements in seawater |
author_facet |
Hathorne, Ed C. Haley, Brian Stichel, Torben Grasse, Patricia Zieringer, Moritz Frank, Martin |
author_sort |
Hathorne, Ed C. |
title |
Online preconcentration ICP-MS analysis of rare earth elements in seawater |
title_short |
Online preconcentration ICP-MS analysis of rare earth elements in seawater |
title_full |
Online preconcentration ICP-MS analysis of rare earth elements in seawater |
title_fullStr |
Online preconcentration ICP-MS analysis of rare earth elements in seawater |
title_full_unstemmed |
Online preconcentration ICP-MS analysis of rare earth elements in seawater |
title_sort |
online preconcentration icp-ms analysis of rare earth elements in seawater |
publishDate |
2012 |
url |
https://eprints.soton.ac.uk/368790/ https://eprints.soton.ac.uk/368790/1/ggge2140.pdf |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://eprints.soton.ac.uk/368790/1/ggge2140.pdf Hathorne, Ed C., Haley, Brian, Stichel, Torben, Grasse, Patricia, Zieringer, Moritz and Frank, Martin (2012) Online preconcentration ICP-MS analysis of rare earth elements in seawater. Geochemistry, Geophysics, Geosystems, 13 (1), Q01020. (doi:10.1029/2011GC003907 <http://dx.doi.org/10.1029/2011GC003907>). |
op_doi |
https://doi.org/10.1029/2011GC003907 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
13 |
container_issue |
1 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1772820134583336960 |