Improvements in the gaseous hydrogen-water equilibration technique for hydrogen isotope ratio analysis
Analytical Chemistry
By: T. B. Coplen, J. D. Wildman, and J. Chen
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
Abstract
Improved precision in the H2-H2O equilibration method for δD analysis has been achieved in an automated system. Reduction in 1-σ 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.
| 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 |
| DOI | 10.1021/ac00009a014 |
| Volume | 63 |
| Issue | 9 |
| Year Published | 1991 |
| Language | English |
| Publisher | ACS Publications |
| Description | 3 p. |
| First page | 910 |
| Last page | 912 |
| Google Analytic Metrics | Metrics page |