Three-color resonance ionization of titanium sputtered from metal and oxides for cosmochemical analyses: measurements of selectivity and isotope anomalies

Autor:	J. W. Burnett, Dieter M. Gruen, D. R. Spiegel, Andrew M. Davis, Michael J. Pellin, C.E. Young, Robert N. Clayton, Wallis F. Calaway, S.R. Coon
Rok vydání:	1992
Předmět:	Analytical chemistry chemistry.chemical_element Photoionization engineering.material Mass spectrometry Analytical Chemistry Metal chemistry Sputtering visual_art Ionization visual_art.visual_art_medium engineering Hibonite Hyperfine structure Titanium
Zdroj:	Analytical Chemistry. 64:469-475
ISSN:	1520-6882 0003-2700
DOI:	10.1021/ac00029a004
Popis:	Three-color resonance Ionization mass spectrometry (RIMS) measurements of sputtered Ti have been carried out on several oxides containing both Ti and (isobarically interfering) Ca in order to evaluate microbeam RIMS as a tool for isotopic analyses of meteoritic samples. The elemental selectivities of Ti over Ca, all measured at saturating laser Intensities, are in the range of 100 {+-} 20 to 500 {+-} 150, with the largest selectivity obtained In hibonite. We have also carried out experiments on TiO{sub 2} and Ti metal. 39 refs., 7 figs., 2 tabs.
Databáze:	OpenAIRE
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