Determination of hafnium in zirconium metal and zircaloy 4 metal Standard Reference Materials by isotope dilution spark source mass spectrometry

Journal Article · Thu Mar 01 00:00:00 EST 1984 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00267a017· OSTI ID:6140375

Powell, L J; Paulsen, P J

A procedure has been developed for the determination of microgram per gram concentrations of hafnium in zirconium metal and zircaloy 4 metal Standard Reference Materials (SRM's) by stable isotope dilution spark source mass spectrometry. The concentration of hafnium in these SRM's ranges from 200 ..mu..g/g in SRM 1236 to 32 ..mu..g/g in SRM 1237. One-half-gram samples were spiked with /sup 179/Hf and dissolved in a mixture of hydrofluoric and sulfuric acids and the isotopically altered Hf was separated from Zr by cation exchange chromatography using 0.32 M sulfuric acid as an eluant. The isotopically altered, purified hafnium was evaporated onto 200 mesh gold powder which was subsequently homogenized and pressed into electrodes. The altered isotopic ratios were determined by spark source mass spectrometry using electrical detection. 8 references, 4 tables.

• Research Organization: National Bureau of Standards, Washington, DC
• OSTI ID: 6140375
• Journal Information: Anal. Chem.; (United States), Vol. 56:3
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
HAFNIUM
ISOTOPE DILUTION
MASS SPECTROSCOPY
ZIRCALOY 4
QUANTITATIVE CHEMICAL ANALYSIS
ZIRCONIUM ORES
ION EXCHANGE CHROMATOGRAPHY
CATIONS
EXPERIMENTAL DATA
ION EXCHANGE
SPARK MASS SPECTROMETERS
STANDARDS
ALLOYS
CHARGED PARTICLES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
DATA
ELEMENTS
INFORMATION
IONS
ISOTOPE APPLICATIONS
MASS SPECTROMETERS
MEASURING INSTRUMENTS
METALS
NUMERICAL DATA
ORES
SEPARATION PROCESSES
SPECTROMETERS
SPECTROSCOPY
TIN ALLOYS
TRACER TECHNIQUES
TRANSITION ELEMENTS
ZIRCALOY
ZIRCONIUM ALLOYS
ZIRCONIUM BASE ALLOYS
400104* - Spectral Procedures- (-1987)
400105 - Separation Procedures