Gas Chromatographic Analysis of Olefinic Naphthas in Three- to Six-Carbon Range.  With Aid of Subtraction Technique

Martin, Roberto

doi:10.1021/ac60159a010

Cited by 30 publications

(4 citation statements)

References 15 publications

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“…Martin19 reported selective subtraction of olefinic and aromatic compounds in order to quantify three‐ to six‐carbon paraffins in naphthas, using gas chromatography/flame ionization detection (GC/FID). While olefins and aromatic hydrocarbons are completely subtracted by a short column containing silica gel coated with sulfuric acid, saturated hydrocarbons pass quantitatively through the sulfuric acid reagent, so that the paraffins in naphthas can be quantified easily.…”

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A selective unsaturated hydrocarbon subtraction technique for stable carbon isotopic analysis of atmospheric methyl chloride, methyl bromide, and C₂C₅ saturated hydrocarbons using continuous‐flow isotope ratio mass spectrometry

Komatsu

Tsunogai

Yamaguchi

et al. 2005

Rapid Comm Mass Spectrometry

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Using continuous-flow isotope ratio mass spectrometry, we have developed a new analytical system which enables us to determine the stable carbon isotopic composition of CH3Cl, CH3Br, and C2-C5 saturated hydrocarbons in gas samples even if they contain substantial amounts of unsaturated hydrocarbons, using an I2O5 reagent for their selective subtraction. The analytical precision of the delta13C determinations is better than 0.5 per thousand for >300 pmolC injections and better than 5 per thousand for 20 pmolC injections. Using the system, delta13C values for CH3Cl and CH3Br were found in burning exhaust that contain a substantial quantity of unsaturated hydrocarbons. CH3Cl and CH3Br measured in exhaust from burning rice plants exhibit highly 13C-depleted values of -56.6 +/- 1.3 per thousand and -48.6 +/- 3.9 per thousand, respectively, while saturated hydrocarbons exhibit delta13C values (-26.4 to -28.9 per thousand) that are comparable with the total delta13C value of the parent material (rice plant; -28.0 per thousand). Using the system, we can determine the delta13C values of methyl halides and hydrocarbons in many kinds of gas samples.

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A selective unsaturated hydrocarbon subtraction technique for stable carbon isotopic analysis of atmospheric methyl chloride, methyl bromide, and C₂C₅ saturated hydrocarbons using continuous‐flow isotope ratio mass spectrometry

Komatsu

Tsunogai

Yamaguchi

et al. 2005

Rapid Comm Mass Spectrometry

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“…Therefore, it is often possible to assume that H ~ H i . It should be noted that the values of the retention time and efficiency H for a chromatographie column with or without a reactor, calculated according to the data of Martin [43], are almost identical.…”

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Some Problems in the Theory of Analytical Reaction Gas Chromatography

Berezkin¹

1968

Analytical Reaction Gas Chromatography

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In analytical re action gas chromatography chemical reactions and chromatographie separation are used simultaneously or in sequence. Therefore, the processes ofanalyticalreactionchromatography are characterized not only by the usual parameters for chromatographie separation (number of theoretical plates, retention values, etc.), but also by the parameters of the chemical reaction (rate constant, activation energy, reaction orders, etc.).

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“…A., Averill, W., Conference on Analytical Chemistry and Applied Spectroscopy, Pittsburgh, Pa., March 5-9, 1962. (5) McEwen, D. J., J. Chromatog. 9, 266 (1962).…”

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A Gas-Density Detector for Gas Chromatography.

Nerheim¹

1963

Anal. Chem.

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Gas Chromatographic Analysis of Olefinic Naphthas in Three- to Six-Carbon Range. With Aid of Subtraction Technique

Cited by 30 publications

References 15 publications

A selective unsaturated hydrocarbon subtraction technique for stable carbon isotopic analysis of atmospheric methyl chloride, methyl bromide, and C₂C₅ saturated hydrocarbons using continuous‐flow isotope ratio mass spectrometry

A selective unsaturated hydrocarbon subtraction technique for stable carbon isotopic analysis of atmospheric methyl chloride, methyl bromide, and C₂C₅ saturated hydrocarbons using continuous‐flow isotope ratio mass spectrometry

Some Problems in the Theory of Analytical Reaction Gas Chromatography

A Gas-Density Detector for Gas Chromatography.

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Gas Chromatographic Analysis of Olefinic Naphthas in Three- to Six-Carbon Range. With Aid of Subtraction Technique

Cited by 30 publications

References 15 publications

A selective unsaturated hydrocarbon subtraction technique for stable carbon isotopic analysis of atmospheric methyl chloride, methyl bromide, and C2C5 saturated hydrocarbons using continuous‐flow isotope ratio mass spectrometry

A selective unsaturated hydrocarbon subtraction technique for stable carbon isotopic analysis of atmospheric methyl chloride, methyl bromide, and C2C5 saturated hydrocarbons using continuous‐flow isotope ratio mass spectrometry

Some Problems in the Theory of Analytical Reaction Gas Chromatography

A Gas-Density Detector for Gas Chromatography.

Contact Info

Product

Resources

About

A selective unsaturated hydrocarbon subtraction technique for stable carbon isotopic analysis of atmospheric methyl chloride, methyl bromide, and C₂C₅ saturated hydrocarbons using continuous‐flow isotope ratio mass spectrometry

A selective unsaturated hydrocarbon subtraction technique for stable carbon isotopic analysis of atmospheric methyl chloride, methyl bromide, and C₂C₅ saturated hydrocarbons using continuous‐flow isotope ratio mass spectrometry