Gas Chromatography.  Effect of Type and Amount of Solvent on Analysis of Saturated Hydrocarbons

Eggertsen, F. T.; Knight, H. S.

doi:10.1021/ac60133a003

Cited by 45 publications

(7 citation statements)

References 6 publications

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“…The results shown in Table III and Figures 6 and 7 also indicate that for a given surface area of the solid support and in the range of optimal carrier gas flow rates, the use of a low porosity solid increases the column efficiency. Similar conclusions were also reached by De Wet, Haarhoff, and Pretorius (6) and Eggertsen and Knight (7). In the investigation of the kinetics of the reaction between carbon and C02 (10), it was also found that the rate of reaction on larger particles of carbon is slower, as a result of the lower diffusion rate of C02 in the pores of the larger particles.…”

Section: Area Of Solid Supportssupporting

confidence: 75%

“…The isotope exchange between the inorganic chloride and the Cl36 sorbed on the solid phase shows that the solid support in GLC is not always inert, as assumed by some authors (2,17), but interacts with the solute sample by adsorbing it, thus influencing its retention time. James and Martin (IS), and Eggertsen and Knight (7) also found a strong interaction between the solid support and the gaseous sample in GLC, shown by changes in the retention time of the sample as a function of the thickness of the liquid layer.…”

Section: Resultsmentioning

confidence: 94%

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Applications of Isotopic Exchange in Gas Chromatography.

Tadmor¹

1964

Anal. Chem.

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disulfide was examined for purity chroma to graphically and was observed to be 95 to 99% pure. At the same time, it was evident that peak 20 was not being produced in the instrument from the disulfide because none was present in these purity runs. It is suspected that the diallyl disulfide disproportionates to a small extent upon standing, since both the trisulfide and monosulfide were observed in approximately equimolar quantities in the standard.The purified diallyl disulfide was used for the previously mentioned trisulfide synthesis, and the main peak observed after this reaction compared with peak 20 in both retention time and value.

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Section: Area Of Solid Supportssupporting

confidence: 75%

Section: Resultsmentioning

confidence: 94%

Applications of Isotopic Exchange in Gas Chromatography.

Tadmor¹

1964

Anal. Chem.

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“…These changes in elution order have been assumed to result from the adsorptive properties of the solid support. With nonpolar liquid phases, such changes upon varying the ratio of liquid to support (3,4,17) have been satisfactorily explained by adsorption of solutes on the support (3). With polar liquid phases, however, the changes (12,16) do not seem to be so explained; the influence of some unknown factor was indicated.…”

mentioning

confidence: 98%

Adsorption on the Liquid Phase in Gas Chromatography

Martin¹

1961

Anal. Chem.

232

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“…1 Not eluted together on this column. 6 No individual peaks from these components obtained; values given were calculated by comparing results from two columns. * Peak not completely resolved from neighboring peak.…”

Section: Resultsmentioning

confidence: 99%

“…A similar but somewhat smaller variation in relative retention times exists for the cycloparaffins. Variation in selectivity for cycloparaffins with changes in the percentage of liquid phase has been discussed (6) but not widely applied in preparing columns to separate complex mixtures of paraffins and cycloparaffins. In this work, the optimum percentages of liquid phase ax'oided superimposition of benzene and cycloparaffins.…”

Section: Methodsmentioning

confidence: 99%