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| The error in conventionally reported C-13/C-12 ratios of atmospheric CO due to the presence of mass independent oxygen isotope enrichment | |
| Rockmann, T. | |
| 1998 | |
| Source Publication | Geophysical Research Letters
 |
| ISSN | 0094-8276 |
| Volume | 25Issue:16Pages:3163-3166 |
| Abstract | An inherent disadvantage of stable isotope mass spectrometry on CO2 is that C-13- and O-17-substituted CO2 are not resolved. Therefore, CO2-based mass spectrometry relies on the widely applicable assumption of mass dependent fractionation in the oxygen isotopes, rendering the measurement of O-17 superfluous. For atmospheric CO, however, recently published determinations of its oxygen isotopic composition reveal the presence of significant deviation from mass dependent fractionation. For instance, the observed O-17 excess of tropospheric CO at high northern latitudes shows a prominent seasonal cycle peaking at 7.5 parts per thousand in late summer. This implies that the CO2 based determination of the C-13 content of CO introduces a systematical error that needs to be corrected for, and a correction formula is derived, Based on the available Delta(17)O data and the now identified sources of mass independent fractionation in CO, the extent of this correction for CO isotope analysis in clean tropospheric air is estimated. |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/8441 |
| Collection | 公共技术服务中心主要仪器相关文献_同位素质谱仪 |
| Recommended Citation GB/T 7714 | Rockmann, T.. The error in conventionally reported C-13/C-12 ratios of atmospheric CO due to the presence of mass independent oxygen isotope enrichment[J]. Geophysical Research Letters,1998,25(16):3163-3166. |
| APA | Rockmann, T..(1998).The error in conventionally reported C-13/C-12 ratios of atmospheric CO due to the presence of mass independent oxygen isotope enrichment.Geophysical Research Letters,25(16),3163-3166. |
| MLA | Rockmann, T.."The error in conventionally reported C-13/C-12 ratios of atmospheric CO due to the presence of mass independent oxygen isotope enrichment".Geophysical Research Letters 25.16(1998):3163-3166. |
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