Use of homologous series of liquids for the study of the linearity and relative response factors for methyl and methylene groups in flame lonization detectors by headspace gas chromatography

Hussam, Abul; Park, Jung Hag.; Carr, Peter W.

doi:10.1016/0026-265x(87)90204-9

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…A complete experimental run consisted of several steps. A prerun with a gas standard sample (three replicates) was done; from the average area and height counts of the gas standard replicates, the response factor (both area and height) for each solute was determined (Hussam et al, 1987). Next, a single sample of pure solvent headspace was taken to check its purity.…”

Section: Gas Standard Preparationmentioning

confidence: 99%

Headspace Gas Chromatographic Measurements of Limiting Activity Coefficients of Eleven Alkanes in Organic Solvents at 25 °C. 1

2000

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In the present study we report the infinite dilution activity coefficients (γ ∞ ) of 11 alkanes in 67 organic liquids at 25 °C measured by fully automated headspace gas chromatography. This study is part of a more comprehensive one whose main objective is to compare the predictive ability of several semitheoretical models to estimate alkane γ ∞ values. To do this it is obviously necessary to collect reliable experimental data spanning a wide range of chemical properties. The solutes include five linear (pentane to nonane), four branched (2-methylpentane, 2,4-dimethylpentane, 2,5-dimethylhexane, 2,3,4-trimethylpentane), and two cyclic (cyclohexane and ethylcyclohexane) alkanes. The solvents include several homologous series: n-alkanes, 1-alkenes, n-alcohols, 2-ketones, nitriles, acetates, and 34 other common volatile and nonvolatile solvents. Several modifications introduced to the previously reported instrumentation and to the quantitation method are discussed. The data presented are the average of at least two independent measurements with a precision better than 5%.

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Section: Gas Standard Preparationmentioning

confidence: 99%

Headspace Gas Chromatographic Measurements of Limiting Activity Coefficients of Eleven Alkanes in Organic Solvents at 25 °C. 1

2000

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“…The same stock liquid mixture used for the preparation of the gas standard was employed as the source of the solutes for addition to the test solvent. Details of the preparation and calibration procedures have been described elsewhere (10,15). We believe that the standard is accurate to 0.2-0.3%.…”

Section: Methodsmentioning

confidence: 99%

Experimental reexamination of selected partition coefficients from Rohrschneider's data set

et al. 1987

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Use of homologous series of liquids for the study of the linearity and relative response factors for methyl and methylene groups in flame lonization detectors by headspace gas chromatography

Cited by 2 publications

References 5 publications

Headspace Gas Chromatographic Measurements of Limiting Activity Coefficients of Eleven Alkanes in Organic Solvents at 25 °C. 1

Headspace Gas Chromatographic Measurements of Limiting Activity Coefficients of Eleven Alkanes in Organic Solvents at 25 °C. 1

Experimental reexamination of selected partition coefficients from Rohrschneider's data set

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