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A novel sample cell for reducing the “Position Effect” in laser ablation MC-ICP-MS isotopic measurements.

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Title: A novel sample cell for reducing the “Position Effect” in laser ablation MC-ICP-MS isotopic measurements.
Authors: Xie, Lie-Wen1,2, Xu, Lei1,2, Yang, Yue-Heng1,2, Huang, Chao1,2, Yang, Jin-Hui1,2, Yin, Qing-Zhu3
Source: JAAS (Journal of Analytical Atomic Spectrometry). Sep2018, Vol. 33 Issue 9, p1571-1578. 8p.
Subjects: Position effect (Genetics), Laser ablation inductively coupled plasma mass spectrometry, Isotopic analysis, Homogeneity, Gas flow
Abstract: A novel laser ablation cell geometry significantly reduces the so-called position effect on high precision and accuracy isotopic measurements by Laser Ablation-Multiple Collector-Inductively Coupled Plasma-Mass Spectrometry (LA-MC-ICP-MS). The peak shape, amplitude and pulse duration of the 56Fe signal for a single laser shot at the carrier gas flow rate in a range from 0.85 to 1.4 L min−1 were studied, and then twelve analytical areas in the sample cell were selected to assess the homogeneity of aerosol transport efficiency in response to a single laser shot under optimized gas flow conditions. To further investigate whether position effects occur in the new cell, the Fe isotopic composition of Balmat pyrite was measured with extreme separation distances between the ‘sample’ and ‘standard’ in horizontal and vertical carrier gas flow directions in two gas flow rate scenarios. The results show that the position effect on Fe isotopic ratios is obvious at a flow rate of 0.85 L min−1. Nevertheless, the position effect is negligible at a flow rate of 1.00 L min−1. The Fe isotopic composition of in-house reference pyrite sample H1 is determined with δ56Fe and δ57Fe values of −0.11 ± 0.20 (2SD, n = 24) and −0.19 ± 0.40 (2SD, n = 24), respectively. These results are consistent with those measured by MC-ICP-MS solution methods (95% confidence interval). We conclude that the new sample cell can be extensively applied for high precision and accuracy LA-MC-ICP-MS stable isotope analysis. [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.)
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DbLabel: Engineering Source
An: 131510842
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PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: A novel sample cell for reducing the “Position Effect” in laser ablation MC-ICP-MS isotopic measurements.
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  Data: <searchLink fieldCode="AR" term="%22Xie%2C+Lie-Wen%22">Xie, Lie-Wen</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Xu%2C+Lei%22">Xu, Lei</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Yang%2C+Yue-Heng%22">Yang, Yue-Heng</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Huang%2C+Chao%22">Huang, Chao</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Yang%2C+Jin-Hui%22">Yang, Jin-Hui</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Yin%2C+Qing-Zhu%22">Yin, Qing-Zhu</searchLink><relatesTo>3</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>. Sep2018, Vol. 33 Issue 9, p1571-1578. 8p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Position+effect+%28Genetics%29%22">Position effect (Genetics)</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+ablation+inductively+coupled+plasma+mass+spectrometry%22">Laser ablation inductively coupled plasma mass spectrometry</searchLink><br /><searchLink fieldCode="DE" term="%22Isotopic+analysis%22">Isotopic analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Homogeneity%22">Homogeneity</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+flow%22">Gas flow</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A novel laser ablation cell geometry significantly reduces the so-called position effect on high precision and accuracy isotopic measurements by Laser Ablation-Multiple Collector-Inductively Coupled Plasma-Mass Spectrometry (LA-MC-ICP-MS). The peak shape, amplitude and pulse duration of the 56Fe signal for a single laser shot at the carrier gas flow rate in a range from 0.85 to 1.4 L min−1 were studied, and then twelve analytical areas in the sample cell were selected to assess the homogeneity of aerosol transport efficiency in response to a single laser shot under optimized gas flow conditions. To further investigate whether position effects occur in the new cell, the Fe isotopic composition of Balmat pyrite was measured with extreme separation distances between the ‘sample’ and ‘standard’ in horizontal and vertical carrier gas flow directions in two gas flow rate scenarios. The results show that the position effect on Fe isotopic ratios is obvious at a flow rate of 0.85 L min−1. Nevertheless, the position effect is negligible at a flow rate of 1.00 L min−1. The Fe isotopic composition of in-house reference pyrite sample H1 is determined with δ56Fe and δ57Fe values of −0.11 ± 0.20 (2SD, n = 24) and −0.19 ± 0.40 (2SD, n = 24), respectively. These results are consistent with those measured by MC-ICP-MS solution methods (95% confidence interval). We conclude that the new sample cell can be extensively applied for high precision and accuracy LA-MC-ICP-MS stable isotope analysis. [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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      – Type: doi
        Value: 10.1039/c8ja00083b
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 8
        StartPage: 1571
    Subjects:
      – SubjectFull: Position effect (Genetics)
        Type: general
      – SubjectFull: Laser ablation inductively coupled plasma mass spectrometry
        Type: general
      – SubjectFull: Isotopic analysis
        Type: general
      – SubjectFull: Homogeneity
        Type: general
      – SubjectFull: Gas flow
        Type: general
    Titles:
      – TitleFull: A novel sample cell for reducing the “Position Effect” in laser ablation MC-ICP-MS isotopic measurements.
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            NameFull: Xie, Lie-Wen
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            NameFull: Xu, Lei
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            NameFull: Yang, Yue-Heng
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            NameFull: Huang, Chao
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            NameFull: Yang, Jin-Hui
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            NameFull: Yin, Qing-Zhu
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            – D: 01
              M: 09
              Text: Sep2018
              Type: published
              Y: 2018
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              Value: 33
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              Value: 9
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            – TitleFull: JAAS (Journal of Analytical Atomic Spectrometry)
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