Continuous wave lasers for resonance ionization mass spectrometry

Journal Article · Mon Aug 01 04:00:00 EDT 1983 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00260a038· OSTI ID:6832655

Miller, C M; Nogar, N S

Reported are results of using continuous wave lasers (CW) in resonance ionization mass spectroscopy for isotopic analysis. Typical ionization yields for CW irradiations of the samples were (2 - 6) x 10/sub 6/ ion/s, comparing favorably with yields reported from flashlamp pumped dye lasers. The enhancement exceeds the expectation of rate-equation calculations. The measured selectivity of the resonance ionization process is enhanced, as well as demonstrated, in a mass scan for an equal-atom Lu/Yt sample, and in the fidelity of the /sup 175/Lu//sup 176/Lu ratio in mixed Lu/Yt samples, in spite of an isobaric /sup 176/Yb interference. In general, a ratio within 5% of accepted value of 37.6 was found with a 2 min measurement at each mass.

• Research Organization: Los Alamos National Lab., NM
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6832655
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 55:9; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
400104 -- Spectral Procedures-- (-1987)
400500 -- Photochemistry
CHEMICAL ANALYSIS
COMPARATIVE EVALUATIONS
DATA
DISPERSIONS
EFFICIENCY
ELECTROMAGNETIC RADIATION
ELEMENTS
EXPERIMENTAL DATA
FEASIBILITY STUDIES
INFORMATION
ION SOURCES
ISOTOPE RATIO
LASER RADIATION
LASERS
LUTETIUM
MASS SPECTRA
METALS
MIXTURES
NUMERICAL DATA
OPERATION
QUANTITATIVE CHEMICAL ANALYSIS
RADIATIONS
RARE EARTHS
SENSITIVITY
SPECIFICITY
SPECTRA
YTTERBIUM