SIMS ionization of hydrogen in silicates: a case study of kornerupine (Articolo in rivista)

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Label
  • SIMS ionization of hydrogen in silicates: a case study of kornerupine (Articolo in rivista) (literal)
Anno
  • 2001-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/b105674n (literal)
Alternative label
  • Ottolini L.; Hawthorne F.C. (2001)
    SIMS ionization of hydrogen in silicates: a case study of kornerupine
    in Journal of analytical atomic spectrometry (Print); Royal Society of Chemistry, Cambridge (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ottolini L.; Hawthorne F.C. (literal)
Pagina inizio
  • 1266 (literal)
Pagina fine
  • 1270 (literal)
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  • 16 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 11 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Ottolini L. 1); Hawthorne F.C. 2). 1) CNR-Centro di Studio per la Cristallochimica e la Cristallografia, Via Ferrata, 1, I-27100 Pavia, Italy 2) Dept. Geological Sciences, University of Manitoba, Winnipeg, Manitoba, Canada R3T, 2N2 (literal)
Titolo
  • SIMS ionization of hydrogen in silicates: a case study of kornerupine (literal)
Abstract
  • H/Si ionization in kornerupine, an (Mg, Al)-rich silicate mineral, has been investigated. There are significant variations (about 30% rel.) in the relative-to-Si ion yield for H [IY(H/Si)] as a function of chemical composition of the matrix kornerupine: similar to 38-45 wt% Al2O3, similar to 29-32 wt% SiO2, similar to 15-20 wt% MgO, similar to0-11 wt% FeOtot, similar to2-4 wt% B2O3 and minor variations for the remaining components. There are strong correlations between IY(H/Si) and (Fe+Mn)(at) [where (at) represents the cation abundance in the sample (by atoms)] (r(2) = 0.80); for Mg and Al(at), r(2) = 0.73 and 0.90, respectively. The absolute ion yield for H [IY(H)] is strongly correlated with (Fe+Mn)- and Si(at) (r(2) = 0.92 and 0.94, respectively). It is possible to make adequate corrections to IY( H/Si) as a function of sample composition to obtain accurate H2O (wt%) concentrations, reducing (if not overcoming) the need for specific standards (in most cases unavailable) that match the chemical composition of the sample. A model is proposed for H ionization in this matrix. The present outcome is qualitatively similar to the results obtained for other silicates (schorl, foitite, dravite, axinite, amphibole) and represents a valid basis for modelling SIMS ionization of H in silicates. (literal)
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