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Osmium isotopic ratio measurements by inductively coupled plasma source mass spectrometry

Journal Article · · Anal. Chem.; (United States)
DOI:https://doi.org/10.1021/ac00134a013· OSTI ID:7075673
; ;
The isotopic composition of nanogram quantities of osmium was measured by using an inductively coupled plasma source mass spectrometer. Sensitivity was enhanced a factor of approx.100 by the use of an osmium tetraoxide vapor generator rather than nebulization of solution. For samples less than or equal to5 ng, the ratios /sup 190/Os//sup 192/Os, /sup 189/Os//sup 192/Os, and /sup 188/Os//sup 192/Os were determined to better than +/- 0.5% (1sigma/sub m/) precision. For the minor isotopes, the ratios /sup 187/Os//sup 192/Os and /sup 186/Os//sup 192/Os were determined to +/-1%, and /sup 184/Os//sup 192/Os (4 x 10/sup -4/) was determined to approx.10%. Isotope ratios for common osmium are reported.
Research Organization:
Lawrence Livermore National Lab., CA
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
7075673
Journal Information:
Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 59:7; ISSN ANCHA
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
CHALCOGENIDES
CHEMICAL ANALYSIS
DATA
DAYS LIVING RADIOISOTOPES
ELEMENTS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INFORMATION
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPE RATIO
ISOTOPES
MASS SPECTROSCOPY
METALS
MINUTES LIVING RADIOISOTOPES
NUCLEI
NUMERICAL DATA
OSMIUM
OSMIUM 184
OSMIUM 186
OSMIUM 187
OSMIUM 188
OSMIUM 189
OSMIUM 190
OSMIUM 192
OSMIUM COMPOUNDS
OSMIUM ISOTOPES
OSMIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PLASMA
PLATINUM METALS
QUANTITATIVE CHEMICAL ANALYSIS
RADIOISOTOPES
REFRACTORY METAL COMPOUNDS
SECONDS LIVING RADIOISOTOPES
SENSITIVITY
SPECTROSCOPY
STABLE ISOTOPES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS