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Improvements in the gaseous hydrogen-water equilibration technique for hydrogen isotope ratio analysis

Analytical Chemistry

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Abstract

Improved precision in the H2-H2O equilibration method for ??D analysis has been achieved in an automated system. Reduction in 1-?? standard deviation of a single mass-spectrometer analysis to 1.3??? is achieved by (1) bonding catalyst to glass rods and assigning use to specific equilibration chambers to monitor performance of catalyst, (2) improving the apparatus design, and (3) reducing the H3+ contribution of the mass-spectrometer ion source. For replicate analysis of a water sample, the standard deviation improved to 0.8???. H2S-bearing samples and samples as small as 0.1 mL can be analyzed routinely with this method.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Improvements in the gaseous hydrogen-water equilibration technique for hydrogen isotope ratio analysis
Series title:
Analytical Chemistry
Volume
63
Issue:
9
Year Published:
1991
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Analytical Chemistry
First page:
910
Last page:
912