Gas-chromatographic fractionations of stable isotopes of carbon and oxygen in carbon dioxide

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Description

A high-precision gas chromatograph was used in conjunction with a quadrupole mass spectrometer and an on-line computer to study the fractionation of carbon and oxygen isotopes in carbon dioxide on two solid adsorbents and on a variety of liquid phases. For adsorption studies, the relative retention is reported as a function of temperature on Porapak Q and silica gel. On the former, $alpha$ values are on the order of 1.0027 +- 0.0001 (standard deviation) for the carbon isotopes and 1.0011 +- 0.0002 for the oxygen species, while on silica gel, the values are 1.0031 +- 0.0004 and 1.0050 +- 0.0008, ... continued below

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20 p.

Creation Information

Shepard, A. T.; Danielson, N. D.; Pauls, R. E.; Mahle, N. H.; Taylor, P. J. & Rogers, L. B. January 1, 1975.

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Description

A high-precision gas chromatograph was used in conjunction with a quadrupole mass spectrometer and an on-line computer to study the fractionation of carbon and oxygen isotopes in carbon dioxide on two solid adsorbents and on a variety of liquid phases. For adsorption studies, the relative retention is reported as a function of temperature on Porapak Q and silica gel. On the former, $alpha$ values are on the order of 1.0027 +- 0.0001 (standard deviation) for the carbon isotopes and 1.0011 +- 0.0002 for the oxygen species, while on silica gel, the values are 1.0031 +- 0.0004 and 1.0050 +- 0.0008, respectively. Differential thermodynamic data are reported. Using diethanolamine and polyethylene imine columns in gas--liquid chromatography, greater fractionation was found. However, column bleed and decomposition of the liquid phase were serious problems. (auth)

Physical Description

20 p.

Notes

Dep. NTIS

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  • Other Information: Orig. Receipt Date: 30-JUN-76

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  • Report No.: SRO--854-4
  • Grant Number: None
  • DOI: 10.2172/4163756 | External Link
  • Office of Scientific & Technical Information Report Number: 4163756
  • Archival Resource Key: ark:/67531/metadc871261

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • January 1, 1975

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • Oct. 12, 2017, 2:58 p.m.

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Shepard, A. T.; Danielson, N. D.; Pauls, R. E.; Mahle, N. H.; Taylor, P. J. & Rogers, L. B. Gas-chromatographic fractionations of stable isotopes of carbon and oxygen in carbon dioxide, report, January 1, 1975; United States. (digital.library.unt.edu/ark:/67531/metadc871261/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.