Isotope fractionation during gas chromatographic separations
Journal of Chromatographic Science
By: B. D. Gunter and Jim D. Gleason
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Abstract
Physical interaction between the sample and stationary phase during GC separations may result in severe isotopic fractionation of the effluent, making it essential to collect it totally in order to obtain quantitative results. When carbon dioxide was eluted through a Porapak column the front portions of the elution peak was enriched in 13C. When methane was eluted through molecular sieve, both the heavier species were eluted faster than the lighter ones. However, when the carbon dioxide was eluted through silica gel the first CO2 eluted was enriched in 13C and the last CO2 eluted was enriched in 18O. This behavior of the isotopes probably indicates the presence of two different interaction mechanisms.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Isotope fractionation during gas chromatographic separations |
| Series title | Journal of Chromatographic Science |
| DOI | 10.1093/chromsci/9.3.191 |
| Volume | 9 |
| Issue | 3 |
| Year Published | 1971 |
| Language | English |
| Publisher | Oxford University Press |
| Description | 2 p. |
| First page | 191 |
| Last page | 192 |
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