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Multianalytical determination of trace elements in atmospheric biomonitors by k 0-INAA, ICP-MS and AAS

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Title: Multianalytical determination of trace elements in atmospheric biomonitors by k 0-INAA, ICP-MS and AAS
Authors: Freitas, M.C.1 cfreitas@itn.pt, Pacheco, A.M.G.2, Dionísio, I.1, Sarmento, S.1, Baptista, M.S.3, Vasconcelos, M.T.S.D.3,4, Cabral, J.P.3,5
Source: Nuclear Instruments & Methods in Physics Research Section A. Aug2006, Vol. 564 Issue 2, p733-742. 10p.
Subjects: Trace elements, Epiphytic lichens, Bark, Nuclear activation analysis
Abstract: Abstract: Elemental contents of atmospheric biomonitors—epiphytic lichens and tree bark, exposed in continuous and discontinuous modes—have been assessed through k 0-standardised instrumental neutron activation analysis (k 0-INAA) (two different institutions), inductively coupled plasma mass spectrometry (ICP-MS) and atomic absorption spectrometry (AAS). Certified reference materials—ISE-921 (river clay), NIST-1547 (peach leaves), ICHTJ-INCT-TL-1 (tea leaves; TL-1 hereinafter) and IAEA-336 (lichen material), and nonparametric statistics—rank-order correlations (Spearman R S) and enhanced-sign tests (Wilcoxon T)—were used for analytical control and data comparison, respectively. In general, quality of procedures was deemed good, except for k 0-INAA in determining Br, Cu and Na, all likely affected by high counting statistics, and/or contamination issues (the latter). Results for Cu, Ni, Pb and Sr (by both ICP-MS and AAS) revealed that, despite an outstanding correlation (asymptotic ), they could be viewed as statistically equal for Cu only: AAS tended to yield higher values for Pb and Ni, and lower ones for Sr. The comparison between ICP-MS and k 0-INAA data from TUDelft, for Al, Ca, Cu, Mg, Mn, Na, Ti and V, showed an excellent correlation (as above) and random (relative) magnitude for Cu, Mg, Mn and Ti only: ICP-MS tended to yield higher values for Al, Na and V, and lower ones for Ca, whereas between k 0-INAA data from TUDelft and ITN, for Br, Ca and Na, resulted in systematically higher [Br] and [Ca] variates from TUDelft, even if all corresponding data sets were found to correlate at stringent significance levels. In a few cases, though—Ca, Sr in lichens; Pb in bark—matrix effects did appear to interfere in the outcome of matched-pairs, signed-rank tests, since random hierarchy of variates could be asserted just when lichen and bark data sets were processed separately. [Copyright &y& Elsevier]
Copyright of Nuclear Instruments & Methods in Physics Research Section A is the property of Elsevier B.V. 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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  Data: Multianalytical determination of trace elements in atmospheric biomonitors by k <subscript>0</subscript>-INAA, ICP-MS and AAS
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  Data: <searchLink fieldCode="AR" term="%22Freitas%2C+M%2EC%2E%22">Freitas, M.C.</searchLink><relatesTo>1</relatesTo><i> cfreitas@itn.pt</i><br /><searchLink fieldCode="AR" term="%22Pacheco%2C+A%2EM%2EG%2E%22">Pacheco, A.M.G.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Dionísio%2C+I%2E%22">Dionísio, I.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sarmento%2C+S%2E%22">Sarmento, S.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Baptista%2C+M%2ES%2E%22">Baptista, M.S.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Vasconcelos%2C+M%2ET%2ES%2ED%2E%22">Vasconcelos, M.T.S.D.</searchLink><relatesTo>3,4</relatesTo><br /><searchLink fieldCode="AR" term="%22Cabral%2C+J%2EP%2E%22">Cabral, J.P.</searchLink><relatesTo>3,5</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Nuclear+Instruments+%26+Methods+in+Physics+Research+Section+A%22">Nuclear Instruments & Methods in Physics Research Section A</searchLink>. Aug2006, Vol. 564 Issue 2, p733-742. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Trace+elements%22">Trace elements</searchLink><br /><searchLink fieldCode="DE" term="%22Epiphytic+lichens%22">Epiphytic lichens</searchLink><br /><searchLink fieldCode="DE" term="%22Bark%22">Bark</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+activation+analysis%22">Nuclear activation analysis</searchLink>
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  Data: Abstract: Elemental contents of atmospheric biomonitors—epiphytic lichens and tree bark, exposed in continuous and discontinuous modes—have been assessed through k 0-standardised instrumental neutron activation analysis (k 0-INAA) (two different institutions), inductively coupled plasma mass spectrometry (ICP-MS) and atomic absorption spectrometry (AAS). Certified reference materials—ISE-921 (river clay), NIST-1547 (peach leaves), ICHTJ-INCT-TL-1 (tea leaves; TL-1 hereinafter) and IAEA-336 (lichen material), and nonparametric statistics—rank-order correlations (Spearman R S) and enhanced-sign tests (Wilcoxon T)—were used for analytical control and data comparison, respectively. In general, quality of procedures was deemed good, except for k 0-INAA in determining Br, Cu and Na, all likely affected by high counting statistics, and/or contamination issues (the latter). Results for Cu, Ni, Pb and Sr (by both ICP-MS and AAS) revealed that, despite an outstanding correlation (asymptotic ), they could be viewed as statistically equal for Cu only: AAS tended to yield higher values for Pb and Ni, and lower ones for Sr. The comparison between ICP-MS and k 0-INAA data from TUDelft, for Al, Ca, Cu, Mg, Mn, Na, Ti and V, showed an excellent correlation (as above) and random (relative) magnitude for Cu, Mg, Mn and Ti only: ICP-MS tended to yield higher values for Al, Na and V, and lower ones for Ca, whereas between k 0-INAA data from TUDelft and ITN, for Br, Ca and Na, resulted in systematically higher [Br] and [Ca] variates from TUDelft, even if all corresponding data sets were found to correlate at stringent significance levels. In a few cases, though—Ca, Sr in lichens; Pb in bark—matrix effects did appear to interfere in the outcome of matched-pairs, signed-rank tests, since random hierarchy of variates could be asserted just when lichen and bark data sets were processed separately. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Nuclear Instruments & Methods in Physics Research Section A is the property of Elsevier B.V. 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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        Value: 10.1016/j.nima.2006.04.008
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        Text: English
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        Type: general
      – SubjectFull: Epiphytic lichens
        Type: general
      – SubjectFull: Bark
        Type: general
      – SubjectFull: Nuclear activation analysis
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              Text: Aug2006
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