Lithium isotope analysis by thermal ionization mass spectrometry of lithium tetraborate

Journal Article · Sun Nov 15 04:00:00 EST 1987 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00149a007· OSTI ID:6015517

Chan, L H

A mass spectrometric method based on the thermal ionization of lithium tetraborate has been developed for the isotopic analysis of lithium. The measurement of Li/sub 2/BO/sub 2//sup +/ reduces isotopic fractionation during analysis compared to the normal use of Li/sup +/ ions. The technique is capable of achieving a relative precision of 1.3 per thousand (1sigma) in the determination of lithium isotopic ratios. A chemical procedure for quantitative and clean extraction of lithium from natural waters is described. This method has been applied to sea water with reproductivity within the analytical uncertainty. Preliminary study indicates this technique is also applicable to silicate rocks.

• Research Organization: Louisiana State Univ., Baton Rouge
• OSTI ID: 6015517
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 59:22; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
400105 -- Separation Procedures
ALKALI METAL COMPOUNDS
ALKALI METAL ISOTOPES
BORATES
BORON COMPOUNDS
CHEMICAL ANALYSIS
DATA
EXPERIMENTAL DATA
INFORMATION
IONIZATION
ISOTOPE RATIO
ISOTOPES
LITHIUM COMPOUNDS
LITHIUM ISOTOPES
MASS SPECTROSCOPY
NUMERICAL DATA
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SPECTROSCOPY