HYDROGEN-ISOTOPE ANALYSIS OF NANOMOLE (PICOLITER) QUANTITIES OF H2O
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dc.contributor.author | Eiler J.M. | |
dc.contributor.author | Kitchen N. | |
dc.date.accessioned | 2021-03-17T00:48:36Z | |
dc.date.available | 2021-03-17T00:48:36Z | |
dc.date.issued | 2001 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=836040 | |
dc.identifier.citation | Geochimica et Cosmochimica Acta, 2001, 65, 24, 4467-4479 | |
dc.identifier.issn | 0016-7037 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/26818 | |
dc.description.abstract | We describe a technique for on-line reduction of water vapor carried in a He stream followed by continuous-flow mass spectrometry of evolved H2 gas. This technique is appropriate for analysis of D/H ratios of ~10-9 to ~5 x 10-8 moles of water and has an external precision (1σ) typically varying between +/-1.0 and 2.0%%. For specific ranges in sample size, temperature of the reduction reaction, and method of introducing evolved vapor into the mass spectrometer, this technique involves negligible analytical corrections (~0 to 3%%) beyond those inherent to gas-source mass spectrometry of molecular hydrogen. We present an analysis of the D/H ratio of water released by stepped heating of a 10-mg fragment of the Shergottite-Nahklite-Chassignite meteorite ALH84001 and ~1 to 2 μg of a terrestrial hydrous mineral (thermonatrite) as examples of possible applications making use of this technique. | |
dc.title | HYDROGEN-ISOTOPE ANALYSIS OF NANOMOLE (PICOLITER) QUANTITIES OF H2O | |
dc.type | Статья |
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