Gas Chromatography Analysis of Gaseous Hydrocarbons by Gas-Liquid Partition Chromatography

Fredericks, Emily M.; Brooks, F. R.

doi:10.1021/ac60111a003

Cited by 111 publications

(30 citation statements)

References 12 publications

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“…It was found in the studies with the DMS-DIDP column that the isobutane peak preceded the acetylene. This is contrary to the elution sequence reported by Fredericks and Brooks (42) who stated that acetylene preceded isobutane.…”

Section: * Chromatographcontrasting

confidence: 96%

Recoil reactions of carbon-11 in organic compounds

Lang

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Section: * Chromatographcontrasting

confidence: 96%

Recoil reactions of carbon-11 in organic compounds

Lang

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“…Application of columns coupled in series is not a recent innovation -publications describing such systems appeared in the second half of the fifties [2][3][4][5]. In 1962 Maier and Karpathy [6] and in 1964 Hildebrand and Reilley [7] dealt intensively with polarity tuning and, within the framework of this topic, with the use of columns coupled in series and with mathematical description of the systems in question.…”

Section: Basic Separation Problemmentioning

confidence: 99%

Application of a flow-tunable, serially coupled gas chromatographic capillary column system for the analysis of complex mixtures

Garay¹

2000

Chromatographia

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SummaryA capillary column gas chromatographic system employing two serially coupled fused-silica columns and a simple coupling element is described. The system is operated in flow-tunable mode (flow-tunable tandem system). The very fact of continuous tuning over a large polarity (selectivity) range, ultimately determined by the two constituent columns, offers several possibilities in the analysis of complex mixtures. In this paper two applications are discussed in detail: optimization of peak separation and peak identification. For these applications it is feasible to use, retention data collected from experiments on the tandem system, and empirical formulas. A relatively simple theoretical mathematical model valid for the flow-tunable tandem system, however, furnishes an easy way of calculating retention data on the system from data collected from the individual single columns, thus, creating a new possibility for optimization and peak identification. Optimization and peak identification processes using the empirical and theoretical models are both demonstrated by analysis of solvent mixtures.

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“…33 times greater for isobutane-1-0^'+ than for isobutane-2-C^; the specific activity ratio, f, by the above mechanisms should be one for neopentane using isobutane-2-d4 and 0.75 The acetylene yield was also determined.…”

Section: (38)mentioning

confidence: 99%