| 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. |
| Genre: | Article |
| ProdID: | 70016803 |
| Citation Author: | Coplen, T. B.; Wildman, J. D.; Chen, J. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 912 |
| Citation Issue: | 9 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Analytical Chemistry |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 3 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Improvements in the gaseous hydrogen-water equilibration technique for hydrogen isotope ratio analysis; 1991; Article; Journal; Analytical Chemistry; Coplen, T. B.; Wildman, J. D.; Chen, J. |
| Citation Start Page: | 910 |
| Citation Volume: | 63 |
| Citation Year: | 1991 |
| Type: | citation/reference |
| Text: | Improvements in the gaseous hydrogen-water equilibration technique for hydrogen isotope ratio analysis; 1991; Article; Journal; Analytical Chemistry; Coplen, T. B.; Wildman, J. D.; Chen, J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 1 Jan 1991 00:00 -0600 |
| Publisher: | |
