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High precision 142Ce/140Ce stable isotope measurements of purified materials with a focus on CeO2 nanoparticles.

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Title: High precision 142Ce/140Ce stable isotope measurements of purified materials with a focus on CeO2 nanoparticles.
Authors: Laycock, Adam1, Coles, Barry1, Kreissig, Katharina1, Rehkämper, Mark1
Source: JAAS (Journal of Analytical Atomic Spectrometry). Jan2016, Vol. 31 Issue 1, p297-302. 6p.
Subjects: Stable isotopes, Isotopes, Nanoparticles, Nanostructured materials, Biomacromolecules
Abstract: Engineered CeO2 nanoparticles (NPs) are becoming increasingly prevalent in consumer products and this has raised concerns about the unknown behaviour and fate of such materials in the environment. Analytical limitations have hampered the detection of CeO2 NPs in natural systems at environmentally relevant levels. This study presents data on the inherent stable isotope composition of commercially available purified Ce materials with a particular focus on CeO2 NPs. The aim of this investigation is to determine whether CeO2 NPs posses a distinct isotopic signature that may be exploited for their detection in natural systems. To achieve this, suitable stable isotope measurement protocols were developed for the precise determination of the 142Ce/140Ce isotope ratio by multiple collector ICP-MS using Ba for external normalisation of the instrumental mass bias. The data presented show that precisions of ±0.01‰ (2se) and ±0.04‰ (2sd) can be routinely achieved with these techniques. The results also demonstrate that commercially available CeO2 NPs do not have a distinct Ce isotope composition that may be exploited for the purpose of stable isotope tracing. [ABSTRACT FROM AUTHOR]
Copyright of JAAS (Journal of Analytical Atomic Spectrometry) is the property of Royal Society of Chemistry and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 111951526
AccessLevel: 6
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PubTypeId: academicJournal
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  Data: High precision <superscript>142</superscript>Ce/<superscript>140</superscript>Ce stable isotope measurements of purified materials with a focus on CeO<subscript>2</subscript> nanoparticles.
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  Data: <searchLink fieldCode="AR" term="%22Laycock%2C+Adam%22">Laycock, Adam</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Coles%2C+Barry%22">Coles, Barry</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kreissig%2C+Katharina%22">Kreissig, Katharina</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rehkämper%2C+Mark%22">Rehkämper, Mark</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22JAAS+%28Journal+of+Analytical+Atomic+Spectrometry%29%22">JAAS (Journal of Analytical Atomic Spectrometry)</searchLink>. Jan2016, Vol. 31 Issue 1, p297-302. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Stable+isotopes%22">Stable isotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Isotopes%22">Isotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoparticles%22">Nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Nanostructured+materials%22">Nanostructured materials</searchLink><br /><searchLink fieldCode="DE" term="%22Biomacromolecules%22">Biomacromolecules</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Engineered CeO2 nanoparticles (NPs) are becoming increasingly prevalent in consumer products and this has raised concerns about the unknown behaviour and fate of such materials in the environment. Analytical limitations have hampered the detection of CeO2 NPs in natural systems at environmentally relevant levels. This study presents data on the inherent stable isotope composition of commercially available purified Ce materials with a particular focus on CeO2 NPs. The aim of this investigation is to determine whether CeO2 NPs posses a distinct isotopic signature that may be exploited for their detection in natural systems. To achieve this, suitable stable isotope measurement protocols were developed for the precise determination of the 142Ce/140Ce isotope ratio by multiple collector ICP-MS using Ba for external normalisation of the instrumental mass bias. The data presented show that precisions of ±0.01‰ (2se) and ±0.04‰ (2sd) can be routinely achieved with these techniques. The results also demonstrate that commercially available CeO2 NPs do not have a distinct Ce isotope composition that may be exploited for the purpose of stable isotope tracing. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of JAAS (Journal of Analytical Atomic Spectrometry) is the property of Royal Society of Chemistry and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1039/c5ja00098j
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 6
        StartPage: 297
    Subjects:
      – SubjectFull: Stable isotopes
        Type: general
      – SubjectFull: Isotopes
        Type: general
      – SubjectFull: Nanoparticles
        Type: general
      – SubjectFull: Nanostructured materials
        Type: general
      – SubjectFull: Biomacromolecules
        Type: general
    Titles:
      – TitleFull: High precision 142Ce/140Ce stable isotope measurements of purified materials with a focus on CeO2 nanoparticles.
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            NameFull: Laycock, Adam
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            NameFull: Coles, Barry
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            NameFull: Kreissig, Katharina
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            NameFull: Rehkämper, Mark
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            – D: 01
              M: 01
              Text: Jan2016
              Type: published
              Y: 2016
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              Value: 31
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            – TitleFull: JAAS (Journal of Analytical Atomic Spectrometry)
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